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Best RAM upgrade for the TerraMaster F2-425 Plus

DDR5 SO-DIMM memory for the F2-425 Plus, with UK prices

As an Amazon Associate we earn from qualifying purchases. Prices and availability come from Amazon.co.uk as of the last update and may change.

Quick answer

For the F2-425 Plus, fit a DDR5 SO-DIMM like the SK-Hynix 8GB DDR5 5600MHz, around £111.30 at last check, and add a second identical module if you want to run at the 32GB ceiling. The N150 quad-core handles hardware transcode and everyday NAS duties comfortably on the stock 8GB, so this is an upgrade for headroom, not a fix for a struggling system. Where extra RAM genuinely helps here is Plex library scanning, multiple Docker containers, or heavier Jellyfin metadata work. Stick to standard DDR5 SO-DIMM at 5600MHz or slower; the platform does not need faster kits, so paying more for higher-clocked modules buys nothing extra on this NAS.

As of 23 October 2026
Best £/TB at last check
-
Products tracked
183
Prices last checked
23 October 2026

Best RAM picks for the F2-425 Plus

Three sensible ways to add memory, from cheapest single-stick option to a matched 16GB pair.

Value
8GB DDR5 5200MHz SODIMM
Single 8GB module, 5200MHz, cheapest way to add capacity
£97.00
at last check (23 October 2026)
Buy on Amazon
Balanced
SK-Hynix 8GB DDR5 5600MHz SODIMM
Single 8GB module, 5600MHz, solid mainstream choice
£111.30
at last check (23 October 2026)
Buy on Amazon
Premium
SK Hynix 8GB DDR5 5600MHz (buy two)
Two modules for 16GB total, matched pair, reaches 32GB with existing stick removed
£111.30
at last check (23 October 2026)
Buy on Amazon

Which should you pick

Choose the Value or Balanced single stick if

  • You use the F2-425 Plus mainly for file storage, backups or basic Plex streaming with hardware transcode doing the heavy lifting
  • You run one or two Docker containers or a single VM at most
  • You want to add 8GB now and decide on a second module later

Choose a matched pair for 16GB or 32GB if

  • You run Plex or Jellyfin with large libraries and want faster scanning and thumbnail generation
  • You use several Docker containers, Immich, or a Virtual Machine Manager instance alongside file sharing
  • You want dual-channel performance rather than a single unbalanced module

What actually changes with more RAM on this NAS

The F2-425 Plus ships with 8GB of DDR5, which is enough for two 5GbE network shares, SMB, and Plex hardware transcode without breaking a sweat, since the Intel N150 handles the video decode work rather than the RAM. Where memory matters is caching, background indexing, and how many applications you can run at once through TerraMaster's app centre.

With three M.2 NVMe slots available for cache or storage pools, a busier setup with NVMe caching and multiple containers will lean on system memory more than a simple two-bay file store. If you plan to add an NVMe cache pool alongside Docker workloads, 16GB is a comfortable, low-risk step up from the stock 8GB.

Going to the full 32GB means removing the factory-fitted 8GB module and fitting two 16GB sticks, since this model has only two SO-DIMM slots. Buying two 8GB modules as listed above gets you to 16GB total, which covers most home and small office use cases without needing to source larger capacity modules.

One honest caveat

TerraMaster's official spec sheet lists 32GB as the maximum for the F2-425 Plus, achieved with two 16GB SO-DIMMs rather than 8GB modules. If you want to hit that ceiling, you will need to buy 16GB sticks separately rather than doubling up the 8GB modules listed here, which top out at 16GB combined. For most users running file sharing plus a modest Plex or Jellyfin setup, 16GB is realistically as far as you need to go.

DDR5 SO-DIMM modules for the F2-425 Plus

Price per
Prices last checked 23 October 2026183 products
ProductCapacityPrice£ / TBTypePrime
Micron SODIMM 8GB PC5 DDR5 4800 1Rx16 MTC4C10163S1SC48BA1 Laptop Notebook RAM Memory for Dell HP Lenovo and Other SystemsUsed8 GB£89.99-SO-DIMM · DDR5-
8GB DDR5 5600MHz PC5-44800 262-PIN SODIMM MEMORY RAM COMPATIBLE WITH LAPTOPS/NOTEBOOKS8 GB£97.00-SO-DIMM · DDR5-
8GB DDR5 5200MHz PC5-41600 262-PIN SODIMM MEMORY RAM COMPATIBLE WITH LAPTOPS/NOTEBOOKS8 GB£97.00-SO-DIMM · DDR5-
8GB DDR5 4800MHz PC5-38400 262-PIN SODIMM MEMORY RAM COMPATIBLE WITH LAPTOPS/NOTEBOOKS8 GB£97.00-SO-DIMM · DDR5-
Integral 8GB DDR5 RAM 4800MHz SODIMM Laptop Notebook Memory ModuleUsed8 GB£99.99-SO-DIMM · DDR5-
Samsung 8GB DDR5 4800 MHz PC5-38400 SODIMM Laptop Memory RAM (M425R1GB4BB0) OEMUsed8 GB£99.99-SO-DIMM · DDR5-
2024 Newest SK-Hynix 8GB DDR5 4800MHz SODIMM PC5-4800B-SC0 1Rx16 1.1V SO-DIMM 262-Pin Gaming Busines Home Laptop Notebook RAM Memory Module (HMCG66MEBSA092N BA) (OEM)Used8 GB£99.99-SO-DIMM · DDR5-
8GB DDR5 4800MHz SODIMM PC5-38400 CL40 1Rx16 1.1V SO-DIMM 262-Pin Gaming Busines Home Laptop Notebook RAM Memory Module (M425R1GB4BB0-CQK) (OEM)Used8 GB£99.99-SO-DIMM · DDR5-
Samsung 8GB DDR5 5600MHz PC5-44800 CL46 SODIMM 1Rx16 Single Rank 1.1V 262-Pin Laptop RAM Memory M425R1GB4BB0-CWM, 1 ModuleUsed8 GB£99.99-SO-DIMM · DDR5-
Original SAM 8GB DDR5 M425R1GB4BB0-CQK, 4800MHz SODIMM PC5-38400 1.1V 1Rx16, Memory RAM Compatible for Lenovo Samsung Dell Asus Laptop NotebookUsed8 GB£99.99-SO-DIMM · DDR5-
Kingston ValueRAM 8GB 5600MT/s DDR5 Non-ECC CL46 SODIMM 1Rx16 KVR56S46BS6-8 Laptop Memory8 GB£99.99-SO-DIMM · DDR5ECC-
Dell 16GB DDR5 4800MHz CAMM Memory Module16 GB£99.99-SO-DIMM · DDR5-
SK Hynix 8GB (1x8GB) DDR5 5600MHz PC5-44800 SODIMM 1Rx16 CL46 1.1v HMCG66AGBSA095N Notebook Laptop RAM Memory Module Upgrade AdamantaUsed8 GB£99.99-SO-DIMM · DDR5-
Timetec 8GB DDR5 4800MHz PC5-38400 Unbuffered Non-ECC 1.1V CL40 1Rx16 Single Rank 262Pin SODIMM Laptop Memory RAM Module Upgrade (8GB)8 GB£103.82-SO-DIMM · DDR5ECCPrime
Crucial DDR5 RAM 8GB 4800MHz SODIMM, Laptop Computer Memory, Mini PC, CL40 - CT8G48C40S5Used8 GB£109.99-SO-DIMM · DDR5-
SK-Hynix 8GB DDR5 5600MHz SODIMM PC5-5600B-SC0 1Rx16 1.1V SO-DIMM 262-Pin Gaming Laptop RAM Memory Module (HMCG66AGBSA092N AA) OEMUsed8 GB£110.99-SO-DIMM · DDR5-
SK-Hynix 8GB DDR5 5600MHz SODIMM PC5-5600B-SC0 1Rx16 1.1V SO-DIMM 262-Pin Gaming Laptop RAM Memory Module (HMCG66AGBSA092N AA) OEM8 GB£111.30-SO-DIMM · DDR5-
SK Hynix 8GB (1x8GB) DDR5 5600MHz PC5-44800 SODIMM 1Rx16 CL46 1.1v HMCG66AGBSA095N Notebook Laptop RAM Memory Module Upgrade Adamanta8 GB£111.30-SO-DIMM · DDR5-
Integral 8GB DDR5 RAM 5600MHz DIMM PC Desktop Computer Memory Module Green8 GB£115.15-SO-DIMM · DDR5-
A-Tech 8GB DDR5 4800MHz PC5-38400 CL40 SODIMM 1.1V Non-ECC Unbuffered SO-DIMM 262-Pin Laptop RAM Memory Upgrade Module8 GB£118.68-SO-DIMM · DDR5ECCPrime
Micron SODIMM 8GB PC5 DDR5 4800 1Rx16 MTC4C10163S1SC48BA1 Laptop Notebook RAM Memory for Dell HP Lenovo and Other Systems8 GB£119.94-SO-DIMM · DDR5Prime
Crucial DDR5 RAM 8GB 5600MHz, Desktop Computer Memory, (or 5200MHz, 4800MHz) CL46 - CT8G56C46U5Used8 GB£119.99-SO-DIMM · DDR5-
Transcend JetRam 8GB DDR5 RAM 5600MHz SO-DIMM CL46, Laptop Memory Module | PC5-44800, 288 Pin Unbuffered Non ECC, 1.1V, PC Computer UpgradeUsed8 GB£119.99-SO-DIMM · DDR5ECC-
A-Tech 8GB RAM Replacement for Crucial CT8G48C40S5 | DDR5 4800 MHz PC5-38400 1.1V SODIMM 262-Pin Non-ECC Memory Module8 GB£125.46-SO-DIMM · DDR5ECCPrime
Lexar SODIMM 16GB Kit (2x8GB) DDR5 RAM 5600 MHz, 262-Pin DDR5 SODIMM Laptop RAM, High-Performance Gaming DRAM SO-DIMM for Laptop Memory/All-in-one Intel NUC mini-PC, 1.1V, CL46-45-45-90Used16 GB£128.53-SO-DIMM · DDR5Prime
SAMSUNG 8GB (1x 8GB) 1RX16 PC5-44800B-S DDR5-5600MHZ SODIMM Laptop Memory M425R1GB4PB0-CWM (Renewed)Renewed8 GB£128.99-SO-DIMM · DDR5-
Integral 8GB DDR5 RAM 5600MHz SODIMM Laptop Notebook Memory ModuleUsed8 GB£129.00-SO-DIMM · DDR5-
Mic(Micron) Original 8GB (1x8GB) DDR5 5600MHz PC5-44800 SODIMM Unbuffered Non-ECC 1Rx16 CL46 1.1v MTC4C10163S1SC56BD1 Upgrade Laptop RAM Memory Module Adamanta8 GB£129.00-SO-DIMM · DDR5ECC-
TAC Trading SK Hynix 8GB DDR5 5600MHz SODIMM PC5-5600B-SC0, 1Rx16, 1.1V SO-DIMM 262-Pin Gaming Busines Home Laptop Notebook RAM Memory Module (HMCG66AGBSA092N BA) OEMUsed8 GB£129.99-SO-DIMM · DDR5-
Lexar SODIMM 8GB DDR5 RAM 5600 MHz, 262-Pin DDR5 SODIMM Laptop RAM, High-Performance Gaming DRAM SO-DIMM for Laptop Memory/All-in-one Intel NUC mini-PC, 1.1V, CL46-45-45-908 GB£130.00-SO-DIMM · DDR5-
Hynix 8GB Replacement RAM for Dell HP ASUS Lenovo PC HMCG66AGBSA095N DDR5 5600MHz PC5-5600B SODIMM 1Rx8 1.1V 262-Pin Non-ECC Laptop Memory Module8 GB£130.10-SO-DIMM · DDR5ECCPrime
Integral 8GB DDR5 RAM 4800MHz SODIMM Laptop Notebook Memory Module8 GB£130.95-SO-DIMM · DDR5-
Hypertec Hyperam HYS5481024168GBOE 8GB (1 x 8GB) 4800 MHz DDR5 Laptop RAM8 GB£135.99-SO-DIMM · DDR5-
Samsung 8GB DDR5 5600MHz PC5-44800 CL46 SODIMM 1Rx16 Single Rank 1.1V 262-Pin Laptop RAM Memory M425R1GB4BB0-CWM, 1 Module8 GB£136.97-SO-DIMM · DDR5Prime
Samsung 8GB DDR5 4800 MHz PC5-38400 SODIMM Laptop Memory RAM (M425R1GB4BB0) OEM8 GB£137.59-SO-DIMM · DDR5-
Samsung 16GB DDR5 5600MHz PC5-44800 CL46 SODIMM 1Rx8 Single Grade 1.1V 262Pin Laptop RAM Memory M425R2GA3BB0-CWMUsed16 GB£149.99-SO-DIMM · DDR5-
Kingston Branded Memory 8GB DDR5 5600MT/s SODIMM KCP556SS6-8 Notebook Memory8 GB£149.99-SO-DIMM · DDR5-
HKUXZR N150 Industrial Motherboard NAS 4 Cores 4 Threads Low Power Processor 4x2.5G i226 Network M.2 Slot 6xSATA DP HDMI 2.0 PCIE ×1 DDR5 with Fan32 GB£155.02-SO-DIMM · DDR5-
Integral 8GB DDR5 RAM 5600MHz SODIMM Laptop Notebook Memory Module8 GB£155.95-SO-DIMM · DDR5-
ORIGIN STORAGE - RAM MEMORY 16GB DDR5 4800MHZ SODIMM 1RX8 NON-ECC 1.1V16 GB£159.99-SO-DIMM · DDR5ECC-
ORIGIN STORAGE - RAM MEMORY 8GB DDR5 4800MHZ SODIMM 1RX16 NON-ECC 1.1V8 GB£161.85-SO-DIMM · DDR5ECC-
16GB DDR5 4800MHz PC5-38400 262-PIN SODIMM MEMORY RAM COMPATIBLE WITH LAPTOPS/NOTEBOOKS16 GB£167.00-SO-DIMM · DDR5-
16GB DDR5 5600MHz PC5-44800 262-PIN SODIMM MEMORY RAM COMPATIBLE WITH LAPTOPS/NOTEBOOKS16 GB£167.00-SO-DIMM · DDR5-
Crucial DDR5 RAM 8GB 5600MHz, Desktop Computer Memory, (or 5200MHz, 4800MHz) CL46 - CT8G56C46U58 GB£167.95-SO-DIMM · DDR5-
Kingston FURY Impact 8GB 4800MT/s DDR5 CL38 SODIMM Notebook Gaming Memory Single Module - KF548S38IB-8, Black8 GB£170.00-SO-DIMM · DDR5-
Original SAM 8GB DDR5 M425R1GB4BB0-CQK, 4800MHz SODIMM PC5-38400 1.1V 1Rx16, Memory RAM Compatible for Lenovo Samsung Dell Asus Laptop Notebook8 GB£172.39-SO-DIMM · DDR5Prime
Transcend JetRam 8GB DDR5 RAM 4800MHz SO-DIMM CL40, Laptop Memory Module | PC5-38400, 288 Pin Unbuffered Non ECC, 1.1V, PC Computer Upgrade8 GB£178.99-SO-DIMM · DDR5ECCPrime
RAM 16GB DDR5, SODIMM 262-Pin, Compatible with Laptop and Desktop PCs, 5600MT/s, Non-ECC, Unbuffered, 1.1V, RMSB3410HA88IBF-5600 (Ramaxl), OEM BULK Memory16 GB£179.99-SO-DIMM · DDR5ECC-
Samsung 16GB DDR5 5600MHz PC5-44800 CL46 SODIMM 1Rx8 Single Rank 1.1V 262-Pin Laptop, Notebook RAM MemoryUsed16 GB£179.99-SO-DIMM · DDR5-
Crucial DDR5 RAM 16GB 4800MHz SODIMM, Laptop Computer Memory, Mini PC, CL40 - CT16G48C40S5Used16 GB£184.99-SO-DIMM · DDR5-
Micron SODIMM 16GB DDR5 4800 PC5 1Rx8 MTC8C1084S1SC48BAX Laptop Ultrabook RAM Memory for Dell HP Lenovo and Other SystemsUsed16 GB£184.99-SO-DIMM · DDR5-
Biwin DDR5 RAM 16GB Up to 5600MHz, SODIMM 262-pin CL46, Laptop Computer Memory, Mini PC, 1.1V / Independent PMIC/On-die ECC, High Performance RAM for AI or Gaming Computer, Single16 GB£185.99-SO-DIMM · DDR5ECC-
CORSAIR VENGEANCE SODIMM DDR5 RAM 8GB (1x8GB) Up to 4800MHz CL40 Intel XMP iCUE Compatible Computer Memory - Black (CMSX8GX5M1A4800C40)8 GB£188.99-SO-DIMM · DDR5-
Kingston FURY Impact 16GB 4800MT/s DDR5 CL38 SODIMM Notebook Gaming Memory Single Module - KF548S38IB-16, BlackUsed16 GB£189.99-SO-DIMM · DDR5-
16GB (2 x 8GB) DDR5 4800MHz PC5-38400 262-PIN SODIMM MEMORY RAM KIT COMPATIBLE WITH LAPTOPS/NOTEBOOKS16 GB£194.00-SO-DIMM · DDR5-
Lexar SODIMM 16GB DDR5 RAM 5600 MHz, 262-Pin DDR5 Laptop RAM, High-Performance Gaming DRAM SO-DIMM for Laptop Memory/All-in-one Intel NUC mini-PC, 1.1V, CL46-45-45-90(LD5S16G56C46ST-BGS)16 GB£194.99-SO-DIMM · DDR5-
Crucial DDR5 RAM 16GB 5600MHz SODIMM, Laptop Computer Memory, Mini PC (or 5200MHz, 4800MHz) CL46 - CT16G56C46S516 GB£194.99-SO-DIMM · DDR5-
SK-Hynix 16GB 5600MHz DDR5 PC5-44800 Non-ECC CL46 262-Pin SoDimm 1.1V Single Rank x8 Memory Module OEM - HMCG78AGBSA095NUsed16 GB£199.00-SO-DIMM · DDR5ECC-
New Samsung 16GB (8GBX2) DDR5 4800 MHz PC5-38400 SODIMM Laptop Memory RAM (M425R1GB4BB0) OEMUsed16 GB£199.00-SO-DIMM · DDR5-
Integral 16GB DDR5 RAM 4800MHz SODIMM Laptop Notebook Memory ModuleUsed16 GB£199.00-SO-DIMM · DDR5-
HP 8GB DDR5 SDRAM Memory Module - for Notebook - 8 GB - DDR5-4800/PC5-38400 DDR5 SDRAM - 4800 MHz - 262-pin - SoDIMM - 1 Year Warranty8 GB£199.73-SO-DIMM · DDR5-
Integral 16GB DDR5 RAM 4800MHz DIMM PC Desktop Computer Memory Module16 GB£199.95-SO-DIMM · DDR5-
Kingston Branded Memory 16GB DDR5 5600MT/s SODIMM KCP556SS8-16 Notebook MemoryUsed16 GB£199.99-SO-DIMM · DDR5-
HEWLETT PACKARD, RAM, 5600 SODIMM NECC Memory, 16GB, DDR5, Maximum Memory Speed 5200 MHz, 9 g, 69.6 x 30 x 1.2 mm16 GB£199.99-SO-DIMM · DDR5-
Crucial DDR5 RAM 16GB 4800MHz, Desktop Computer Memory, CL40 - CT16G48C40U5Used16 GB£209.99-SO-DIMM · DDR5-
Crucial DDR5 RAM 8GB 4800MHz SODIMM, Laptop Computer Memory, Mini PC, CL40 - CT8G48C40S58 GB£219.24-SO-DIMM · DDR5-
Crucial DDR5 RAM 16GB Kit (2x8GB) 4800MHz SODIMM, Laptop Computer Memory, Mini PC, CL40 - CT2K8G48C40S5Used16 GB£219.98-SO-DIMM · DDR5-
Integral 16GB Kit (2x8GB) DDR5 RAM 4800MHz SODIMM Laptop Notebook Memory ModuleUsed16 GB£219.98-SO-DIMM · DDR5-
ist computers 16GB (8GB x 2) DDR5 4800MHz SODIMM PC5-38400 CL40 1Rx16 1.1V SO-DIMM 262-Pin Gaming Busines Home Laptop Notebook RAM Memory Module (M425R1GB4BB0-CQK) (OEM)Used16 GB£219.98-SO-DIMM · DDR5-
Crucial DDR5 RAM 16GB 5600MHz SODIMM, Laptop Computer Memory, Mini PC (or 5200MHz, 4800MHz) CL46 - CT16G56C46S5Used16 GB£219.99-SO-DIMM · DDR5-
Crucial DDR5 RAM 16GB 5600MHz, Desktop Computer Memory, (or 5200MHz, 4800MHz) CL46 - CT16G56C46U5Used16 GB£219.99-SO-DIMM · DDR5-
KLEVV DDR5 RAM 16GB 5600MHz 1 x 16GB SODIMM Memory 262-Pin 1.1V CL46 Laptop Notebook Ram Memory 46-46-46-90 - KD5AGSA80-56G4600 (16GB (1 x 16GB))16 GB£219.99-SO-DIMM · DDR5-
MMOMENT 16GB DDR5 5600MHz Laptop RAM, SODIMM, CL46, 1.1V, Memory Module16 GB£221.53-SO-DIMM · DDR5Prime
Samsung 16GB DDR5 5600MHz PC5-44800 CL46 SODIMM 1Rx8 Single Grade 1.1V 262Pin Laptop RAM Memory M425R2GA3BB0-CWM16 GB£221.80-SO-DIMM · DDR5-
Lexar SODIMM 16GB Kit (2x8GB) DDR5 RAM 5600 MHz, 262-Pin DDR5 SODIMM Laptop RAM, High-Performance Gaming DRAM SO-DIMM for Laptop Memory/All-in-one Intel NUC mini-PC, 1.1V, CL46-45-45-9016 GB£223.00-SO-DIMM · DDR5-
CORSAIR VENGEANCE SODIMM DDR5 RAM 16GB (2x8GB) Up to 4800MHz CL40 Intel XMP iCUE Compatible Computer Memory - Black (CMSX16GX5M2A4800C40)16 GB£226.46-SO-DIMM · DDR5-
Timetec 16GB DDR5 5600MHz PC5-44800 Unbuffered Non-ECC 1.1V CL46 1Rx8 Single Rank 262Pin SODIMM Laptop Memory RAM Module Upgrade16 GB£229.54-SO-DIMM · DDR5ECCPrime
Timetec Premium 32GB DDR5 5600MHz PC5-44800 Unbuffered Non-ECC 1.1V CL46 2Rx8 Dual Rank 262Pin SODIMM Laptop Memory RAM Upgrade32 GB£229.56-SO-DIMM · DDR5ECCPrime
CORSAIR Vengeance SODIMM DDR5 RAM 16GB (1x16GB) Up to 4800MHz CL40-40-40-77 1.1V Intel AMD Laptop Notebook Memory - Black (CMSX16GX5M1A4800C40)16 GB£229.99-SO-DIMM · DDR5Prime
Crucial DDR5 RAM 16GB 4800MHz SODIMM, Laptop Computer Memory, Mini PC, CL40 - CT16G48C40S516 GB£229.99-SO-DIMM · DDR5-
Integral 16GB DDR5 RAM 5200MHz SODIMM Laptop Notebook Memory ModuleUsed16 GB£229.99-SO-DIMM · DDR5-
Transcend JetRam 16GB DDR5 RAM 5600MHz SO-DIMM CL46, Laptop Memory Module | PC5-44800, 288 Pin Unbuffered Non ECC, 1.1V, PC Computer UpgradeUsed16 GB£229.99-SO-DIMM · DDR5ECC-
Integral 16GB DDR5 RAM 5600MHz SODIMM Laptop Notebook Memory ModuleUsed16 GB£229.99-SO-DIMM · DDR5-
Biwin DDR5 RAM 16GB Up to 5600MHz, SODIMM 262-pin CL46, Laptop Computer Memory, Mini PC, 1.1V / Independent PMIC/On-die ECC, High Performance RAM for AI or Gaming Computer, SingleUsed16 GB£229.99-SO-DIMM · DDR5ECC-
TEAMGROUP Elite SODIMM DDR5 16GB 5600Mhz (PC5-44800) CL46 Non-ECC Unbuffered 1.1V 1Rx8 Single Rank 262 Pin Laptop Memory Module Ram - TED516G5600C46-S0116 GB£232.38-SO-DIMM · DDR5ECCPrime
CORSAIR VENGEANCE SODIMM DDR5 RAM 16GB (1x16GB) Up to 5600MHz CL48 Intel XMP iCUE Compatible Computer Memory - Black (CMSX16GX5M1A5600C48)16 GB£232.64-SO-DIMM · DDR5Prime
A-Tech 16GB Kit (2x8GB) DDR5 4800MHz PC5-38400 CL40 SODIMM 1.1V Non-ECC Unbuffered SO-DIMM 262-Pin Laptop RAM Memory Upgrade Modules16 GB£232.94-SO-DIMM · DDR5ECCPrime
Integral 16GB Kit (2x 8GB) DDR5 RAM 5600MHz SODIMM Laptop Notebook Memory ModuleUsed16 GB£239.99-SO-DIMM · DDR5-
Crucial DDR5 RAM 16GB Kit (2x8GB) 5600MHz SODIMM, Laptop Computer Memory, Mini PC (or 5200MHz, 4800MHz) CL46 - CT2K8G56C46S5Used16 GB£239.99-SO-DIMM · DDR5-
Crucial 16GB 6400MHz DDR5 Laptop RAM Memory CT16G64C52CS5Used16 GB£239.99-SO-DIMM · DDR5-
MNBOXCONET NAS Motherboard N150 DDR5 Low Power Barebone | Mini-ITX Mainboard with 6×SATA3.0, Computer board 2xNVMe(PCle3.0 x1), 2 x 2.5GBE i226V LAN, PCle 3.0x4 Slot, TF Slot32 GB£249.99-SO-DIMM · DDR5-
Crucial DDR5 RAM 16GB 4800MHz, Desktop Computer Memory, CL40 - CT16G48C40U516 GB£250.00-SO-DIMM · DDR5-
Integral 16GB DDR5 RAM 5600MHz SODIMM Laptop Notebook Memory Module16 GB£250.95-SO-DIMM · DDR5-
New Samsung 16GB (8GBX2) DDR5 4800 MHz PC5-38400 SODIMM Laptop Memory RAM (M425R1GB4BB0) OEM16 GB£255.85-SO-DIMM · DDR5Prime
TEAMGROUP T-Create Classic DDR5 SODIMM 16GB 5600MHz(PC5-44800) CL46 Laptop Memory Module Ram - CTCCD516G5600HC46A-S0116 GB£258.99-SO-DIMM · DDR5Prime
Crucial DDR5 RAM 16GB Kit (2x8GB) 5600MHz, Desktop Computer Memory, (or 5200MHz, 4800MHz) CL46 - CT2K8G56C46U5Used16 GB£259.95-SO-DIMM · DDR5-
Adata AD5S480016G-S 16GB DDR5 4800MHz 16GB RAM Memory16 GB£263.75-SO-DIMM · DDR5-
Integral 16GB Kit (2x 8GB) DDR5 RAM 5600MHz SODIMM Laptop Notebook Memory Module16 GB£266.20-SO-DIMM · DDR5Prime
Integral 16GB Kit (2x8GB) DDR5 RAM 4800MHz SODIMM Laptop Notebook Memory Module16 GB£269.95-SO-DIMM · DDR5Prime
Kingston Technology ValueRAM memory 8 GB 1 x 8 GB DDR5 5600 MT/s 262-pin SO-DIMM (5600 8GB SO KINGSTON BULK Non-ECC CL46 SODIMM 1Rx16)8 GB£269.99-SO-DIMM · DDR5ECC-
Transcend JetRam 16GB DDR5 RAM 4800MHz SO-DIMM CL40, Laptop Memory Module | PC5-38400, 288 Pin Unbuffered Non ECC, 1.1V, PC Computer Upgrade16 GB£282.23-SO-DIMM · DDR5ECCPrime
CORSAIR VENGEANCE RGB DDR5 RAM 16GB (1x16GB) Up to 6000MHz CL36-44-44-96 1.35V AMD EXPO Intel XMP 3.0 Desktop Computer Memory – Grey (CMH16GX5M1E6000Z36)16 GB£282.99-SO-DIMM · DDR5Prime
Crucial 16GB 6400MHz DDR5 Laptop RAM Memory CT16G64C52CS516 GB£289.16-SO-DIMM · DDR5-
Crucial DDR5 RAM 16GB 5600MHz, Desktop Computer Memory, (or 5200MHz, 4800MHz) CL46 - CT16G56C46U516 GB£290.00-SO-DIMM · DDR5-
HP 16GB (1x16GB) DDR5 4800 SODIMM NECC Mem16 GB£291.01-SO-DIMM · DDR5-
SODIMM ADATA DDR5 16GB PC5-5600MHZ CL46 262 Pin 1.1 AD5S560016G-S16 GB£294.27-SO-DIMM · DDR5-
Integral 32GB Kit (2x16GB) DDR5 RAM 4800MHz SODIMM Laptop Notebook Memory Module32 GB£319.95-SO-DIMM · DDR5-
Kingston ValueRAM 16GB 5600MT/s DDR5 Non-ECC CL46 SODIMM 1Rx8 KVR56S46BS8-16 Laptop Memory16 GB£324.93-SO-DIMM · DDR5ECC-
Transcend JetRam 16GB DDR5 RAM 5600MHz SO-DIMM CL46, Laptop Memory Module | PC5-44800, 288 Pin Unbuffered Non ECC, 1.1V, PC Computer Upgrade16 GB£325.99-SO-DIMM · DDR5ECCPrime
Crucial DDR5 RAM 16GB Kit (2x8GB) 5600MHz, Desktop Computer Memory, (or 5200MHz, 4800MHz) CL46 - CT2K8G56C46U516 GB£329.00-SO-DIMM · DDR5-
Kingston Branded Memory 16GB DDR5 5600MT/s SODIMM KCP556SS8-16 Notebook Memory16 GB£334.92-SO-DIMM · DDR5-
Kingston FURY Impact 16GB 4800MT/s DDR5 CL38 SODIMM Notebook Gaming Memory Single Module - KF548S38IB-16, Black16 GB£349.99-SO-DIMM · DDR5-
Kingston FURY Impact XMP 16GB 6400MT/s DDR5 CL38 SODIMM Notebook Gaming Memory Single Module - KF564S38IB-1616 GB£361.77-SO-DIMM · DDR5-
32GB (4 x 8GB) DDR5 4800MHz PC5-38400 262-PIN SODIMM MEMORY RAM KIT COMPATIBLE WITH LAPTOPS/NOTEBOOKS32 GB£388.00-SO-DIMM · DDR5-
Crucial DDR5 RAM 32GB 4800MHz SODIMM, Laptop Computer Memory, Mini PC, CL40 - CT32G48C40S5Used32 GB£389.00-SO-DIMM · DDR5-
Crucial DDR5 RAM 32GB 5600MHz SODIMM, Laptop Computer Memory, Mini PC (or 5200MHz, 4800MHz) CL46 - CT32G56C46S5Used32 GB£389.00-SO-DIMM · DDR5-
Transcend JetRam 32GB DDR5 RAM 5600MHz U-DIMM CL46, Desktop Memory Module | PC5-44800, 288 Pin Unbuffered Non ECC, 1.1V, PC Computer UpgradeUsed32 GB£389.00-SO-DIMM · DDR5ECC-
Crucial DDR5 RAM 32GB 5600MHz, Desktop Computer Memory, (or 5200MHz, 4800MHz) CL46 - CT32G56C46U532 GB£393.18-SO-DIMM · DDR5-
Silicon Power DDR5 32GB (2x16GB) 4800MHz (PC5-38400) 262-pin CL40 1.1V SODIMM Non-ECC Laptop RAM Computer Memory SP032GBSVU480F22Used32 GB£399.00-SO-DIMM · DDR5ECC-
Crucial DDR5 RAM 32GB 5600MHz, Desktop Computer Memory, (or 5200MHz, 4800MHz) CL46 - CT32G56C46U5Used32 GB£399.99-SO-DIMM · DDR5-
Crucial Pro DDR5 RAM 32GB Kit (2x16GB) 6000MHz CL36, Overclocking Gaming, Intel XMP 3.0 / AMD EXPO, Computer Memory (PC), Black - CP2K16G60C36U5BUsed32 GB£399.99-SO-DIMM · DDR5-
Crucial DDR5 RAM 32GB Kit (2x16GB) 5600MHz, Desktop Computer Memory, (or 5200MHz, 4800MHz) CL46 - CT2K16G56C46U532 GB£402.99-SO-DIMM · DDR5-
RAM 32GB DDR5 4800MHz SODIMM GT32G48C40S5 1.1V Laptop For CRUCIAL Notebook Memory32 GB£406.01-SO-DIMM · DDR5-
Crucial DDR5 RAM 32GB Kit (2x16GB) 5600MHz SODIMM, Laptop Computer Memory, Mini PC (or 5200MHz, 4800MHz) CL46 - CT2K16G56C46S5Used32 GB£419.98-SO-DIMM · DDR5-
Crucial Pro DDR5 RAM 32GB Kit (2x16GB) 6000MHz CL36, Overclocking Gaming, Intel XMP 3.0 / AMD EXPO, Computer Memory (PC), Black - CP2K16G60C36U5B32 GB£419.99-SO-DIMM · DDR5Prime
Lexar THOR Z Series OC DDR5 RAM 32GB Kit (2x16GB) 6000 MHz CL40, DRAM 288-Pin UDIMM Desktop Memory32 GB£425.99-SO-DIMM · DDR5-
Crucial NTB 32GB 6400MHz Ddr5 Csodımm Ct32g64c52cs5 Laptop RAM MemoryUsed32 GB£429.00-SO-DIMM · DDR5-
Crucial DDR5 RAM 32GB Kit (2x16GB) 5600MHz, Desktop Computer Memory, (or 5200MHz, 4800MHz) CL46 - CT2K16G56C46U5Used32 GB£429.98-SO-DIMM · DDR5-
Crucial DDR5 RAM 32GB Kit (2x16GB) 4800MHz, Desktop Computer Memory, CL40 - CT2K16G48C40U5Used32 GB£429.98-SO-DIMM · DDR5-
Silicon Power DDR5 32GB Kit (2 x 16GB) 5600MHz (PC5-44800) CL46 1.1V SODIMM Non-ECC Laptop RAM Computer Memory SP032GBSVU560F22Used32 GB£429.98-SO-DIMM · DDR5ECC-
CORSAIR VENGEANCE SODIMM DDR5 RAM 32GB (2x16GB) Up to 4800MHz CL40 Intel XMP iCUE Compatible Computer Memory - Black (CMSX32GX5M2A4800C40)32 GB£436.94-SO-DIMM · DDR5Prime
CORSAIR VENGEANCE DDR5 SODIMM 32GB (2x16GB) DDR5 Up to 5600MHz C48 (Compatible with Nearly Any Intel and AMD System, Easy Installation, Faster Load Times, XMP 3.0 Compatibility) Black32 GB£437.95-SO-DIMM · DDR5Prime
Timetec Premium 32GB KIT(2x16GB) DDR5 5600MHz PC5-44800 Unbuffered Non-ECC 1.1V CL46 1Rx8 Single Rank 262 Pin SODIMM Laptop Memory RAM Upgrade32 GB£446.09-SO-DIMM · DDR5ECCPrime
CORSAIR VENGEANCE SODIMM DDR5 RAM 32GB (1x32GB) Up to 5600MHz CL48 Intel XMP iCUE Compatible Computer Memory – Black (CMSX32GX5M1A5600C48)32 GB£446.99-SO-DIMM · DDR5Prime
【DDR5 RAM Laptop Only】GIGASTONE 32GB Kit (2x16GB) DDR5 5600MHz PC5-44800 CL 46-46-46-90 1.1V SODIMM 262 Pin Unbuffered Non ECC High Performance Notebook Memory Upgrade32 GB£448.99-SO-DIMM · DDR5ECC-
Lexar THOR Z Series OC DDR5 RAM 32GB Kit (2x16GB) 6000 MHz CL36, DRAM 288-Pin UDIMM Desktop Memory, PC Memory High-Performance Computer Memory for Intel XMP 3.0/AMD EXPO, For AI, Gaming, 1.4V32 GB£449.99-SO-DIMM · DDR5-
Lexar SODIMM 32GB Kit (2x16GB) DDR5 RAM 5600 MHz, 262-Pin DDR5 Laptop RAM, High-Performance Gaming DRAM SO-DIMM for Laptop Memory/All-in-one Intel NUC mini-PC, 1.1V, CL46-45-45-9032 GB£456.99-SO-DIMM · DDR5Prime
TEAMGROUP T-Create Classic DDR5 SODIMM 32GB 5600MHz(PC5-44800) CL46 Laptop Memory Module Ram - CTCCD532G5600HC46A-S0132 GB£459.79-SO-DIMM · DDR5Prime
G.SKILL Ripjaws DDR5 SO-DIMM Series DDR5 RAM 32GB (2x16GB) Up to 4800MT/s CL34-34-34-76 1.10V Unbuffered Non-ECC Notebook/Laptop Memory SO-DIMM (F5-4800S3434A16GA2-RS)32 GB£464.85-SO-DIMM · DDR5ECCPrime
Transcend JetRam 32GB DDR5 RAM 5600MHz U-DIMM CL46, Desktop Memory Module | PC5-44800, 288 Pin Unbuffered Non ECC, 1.1V, PC Computer Upgrade32 GB£468.69-SO-DIMM · DDR5ECCPrime
TEAMGROUP Elite SODIMM DDR5 16GB (2x8GB) 4800MHz (PC5-38400) CL40 Non-ECC Unbuffered 1.1V 262 Pin Laptop Memory Module Ram - TED516G4800C40DDC-S01616 GB£471.73-SO-DIMM · DDR5ECCPrime
TERRAMASTER F4-425 Plus NAS Storage - 4Bay Intel N150 Quad-Core CPU, 16GB RAM DDR5, 5GbE LAN x 2, M.2 Slot x 3, Network Attached Storage for Teamwork, Multimedia Server (Diskless)16 GB£471.99-SO-DIMM · DDR5-
CORSAIR VENGEANCE SODIMM DDR5 RAM 48GB (1x48GB) Up to 4800MHz CL40 Intel XMP iCUE Compatible Computer Memory – Black (CMSX48GX5M1A4800C40)48 GB£479.94-SO-DIMM · DDR5Prime
CORSAIR VENGEANCE SODIMM DDR5 RAM 48GB (1x48GB) Up to 5600MHz CL48-48-48-90 1.1V Intel XMP 3.0 Laptop Memory – Black (CMSX48GX5M1A5600C48)48 GB£479.97-SO-DIMM · DDR5Prime
Crucial Pro DDR5 RAM 32GB Kit (2x16GB) 6400MHz CL32, Overclocking Deskop Computer Gaming Memory, Intel XMP 3.0 / AMD EXPO, Black - CP2K16G64C32U5B32 GB£479.99-SO-DIMM · DDR5Prime
Integral 32GB Kit (2x 16GB) DDR5 RAM 5600MHz SODIMM Laptop Notebook Memory Module32 GB£485.95-SO-DIMM · DDR5-
Crucial Pro DDR5 RAM 32GB Kit (2x16GB) 5600MHz, Intel XMP 3.0 / AMD EXPO, Computer Memory (PC) DDR5 32GB RAM - CP2K16G56C46U532 GB£498.13-SO-DIMM · DDR5Prime
Crucial Pro DDR5 RAM 32GB Kit (2x16GB) 6000MHz, Intel XMP 3.0 / AMD EXPO, Computer Memory (PC) - CP2K16G60C48U532 GB£499.00-SO-DIMM · DDR5-
CORSAIR VENGEANCE SODIMM DDR5 RAM 48GB (2x24GB) Up to 5600MHz CL48-48-48-90 1.10V Intel XMP 3.0 Computer Memory – Black (CMSX48GX5M2A5600C48)48 GB£499.99-SO-DIMM · DDR5-
Acer Predator Vesta II DDR5 Up to 6000MHz 32GB (16GBx2) RGB RAM CL30 Intel XMP 3.0 & AMD EXPO Compatible Computer Memory PC5-48000 Black - BL.9BWWR.32732 GB£509.99-SO-DIMM · DDR5-
Crucial DDR5 RAM 32GB Kit (2x16GB) 5600MHz SODIMM, Laptop Computer Memory, Mini PC (or 5200MHz, 4800MHz) CL46 - CT2K16G56C46S532 GB£511.31-SO-DIMM · DDR5Prime
TEAMGROUP Elite SODIMM DDR5 32GB (2x16GB) 4800MHz (PC5-38400) CL40 Non-ECC Unbuffered 1.1V 262 Pin Laptop Memory Module Ram - TED532G4800C40DDC-S0132 GB£535.98-SO-DIMM · DDR5ECCPrime
Crucial DDR5 RAM 32GB 5600MHz SODIMM, Laptop Computer Memory, Mini PC (or 5200MHz, 4800MHz) CL46 - CT32G56C46S532 GB£545.98-SO-DIMM · DDR5-
Crucial DDR5 RAM 32GB 4800MHz SODIMM, Laptop Computer Memory, Mini PC, CL40 - CT32G48C40S532 GB£547.92-SO-DIMM · DDR5-
Crucial DDR5 RAM 32GB Kit (2x16GB) 4800MHz, Desktop Computer Memory, CL40 - CT2K16G48C40U532 GB£548.04-SO-DIMM · DDR5Prime
Kingston FURY Impact PnP 32GB 5600MT/s DDR5 CL40 SODIMM Notebook Gaming Memory Single Module - KF556S40IB-3232 GB£554.70-SO-DIMM · DDR5-
Crucial Pro DDR5 RAM 64GB Kit (2x32GB) 5600MHz, Intel XMP 3.0 / AMD EXPO, Computer Memory (PC) - CP2K32G56C46U5Used64 GB£560.00-SO-DIMM · DDR5-
Crucial NTB 32GB 6400MHz Ddr5 Csodımm Ct32g64c52cs5 Laptop RAM Memory32 GB£568.00-SO-DIMM · DDR5-
Crucial Pro DDR5 RAM 48GB Kit (2x24GB) 5600MHz, Intel XMP 3.0 / AMD EXPO, Computer Memory (PC) - CP2K24G56C46U548 GB£569.00-SO-DIMM · DDR5-
Transcend JetRam 32GB DDR5 RAM 4800MHz SO-DIMM CL40, Laptop Memory Module | PC5-38400, 288 Pin Unbuffered Non ECC, 1.1V, PC Computer Upgrade32 GB£575.14-SO-DIMM · DDR5ECCPrime
Crucial DDR5 RAM 64GB 5600MHz, Desktop Computer Memory, (or 5200MHz, 4800MHz) CL46 - CT64G56C46U564 GB£579.99-SO-DIMM · DDR5Prime
Kingston Branded Memory 16GB DDR5 4800MT/s ECC SODIMM KTL-TN548T-16G Server Memory16 GB£610.46-SO-DIMM · DDR5ECC-
TERRAMASTER F4-424 Max NAS Storage - 4Bay Core i5 1235U 10-Cores 12-Threads, 8GB DDR5 RAM, Dual 10GbE Ports, Network Attached Storage Peak Performance for Business (Diskless)8 GB£614.99-SO-DIMM · DDR5-
CORSAIR VENGEANCE SODIMM DDR5 RAM 64GB (2x32GB) Up to 5600MHz CL48 Intel XMP iCUE Compatible Computer Memory – Black (CMSX64GX5M2A5600C48)64 GB£626.61-SO-DIMM · DDR5Prime
Crucial DDR5 RAM 64GB Kit (2x32GB) 4800MHz SODIMM, Laptop Computer Memory, Mini PC, CL40 - CT2K32G48C40S564 GB£639.00-SO-DIMM · DDR5-
Kingston FURY Impact XMP 32GB 6400MT/s DDR5 CL38 SODIMM (Kit of 2) SODIMM Notebook Gaming Memory - KF564S38IBK2-3232 GB£643.13-SO-DIMM · DDR5Prime
Crucial Sodimm 32g (1x32g) Ddr5-5600*ct32g56c46s5t (ct32g56c46s5t)32 GB£657.85-SO-DIMM · DDR5-
Crucial DDR5 RAM 48GB Kit (2x24GB) 5600MHz SODIMM, Laptop Computer Memory, Mini PC (or 5200MHz, 4800MHz) CL46 - CT2K24G56C46S548 GB£678.67-SO-DIMM · DDR5Prime
TERRAMASTER F6-424 Max NAS Storage - 6Bay Core i5 1235U 10-Cores 12-Threads, 8GB DDR5 RAM, Dual 10GbE Ports, Network Attached Storage Peak Performance for Business (Diskless)8 GB£689.99-SO-DIMM · DDR5-
Crucial Pro DDR5 RAM 64GB Kit (2x32GB) 5600MHz, Intel XMP 3.0 / AMD EXPO, Computer Memory (PC) - CP2K32G56C46U564 GB£749.97-SO-DIMM · DDR5-
NVTEK 64GB (2X32GB) DDR5 4800MHZ PC5-38400 SODIMM 2Rx8 1.1V 262-PIN Non-ECC Laptop PC Computer Memory64 GB£751.48-SO-DIMM · DDR5ECCPrime
Kingston FURY Impact 64GB(2x32GB) 4800MT/s DDR5 CL38 SODIMM Notebook Gaming Memory Kit of 2 - KF548S38IBK2-64, BlackUsed64 GB£790.00-SO-DIMM · DDR5-
Crucial DDR5 RAM 64GB Kit (2x32GB) 4800MHz SODIMM, Laptop Computer Memory, Mini PC, CL40 - CT2K32G48C40S5Used64 GB£799.00-SO-DIMM · DDR5-
Crucial DDR5 RAM 64GB Kit (2x32GB) 5600MHz SODIMM, Laptop Computer Memory, Mini PC (or 5200MHz, 4800MHz) CL46 - CT2K32G56C46S5Used64 GB£799.98-SO-DIMM · DDR5-
Crucial RAM 64GB Kit (2x32GB) DDR5 5200MHz (or 4800MHz) Laptop Memory CT2K32G52C42S5 blackUsed64 GB£799.98-SO-DIMM · DDR5-
NVTEK 48GB (1X48GB) DDR5 4800MHZ PC5-38400 SODIMM 2Rx8 1.1V CL40 262-PIN Non-ECC Laptop PC Computer Memory48 GB£854.68-SO-DIMM · DDR5ECCPrime
PNY Performance 64GB (2x32GB) DDR5 DRAM 5600MHz (PC5-44800) – CL46-46-46-90 (Compatible with 5200MHz, 4800MHz), 1.1V, 262-Pin Non-ECC – Notebook/Laptop (SODIMM) Computer Memory Kit – MN64GK2D55600-TB64 GB£872.62-SO-DIMM · DDR5ECCPrime
G.SKILL Ripjaws DDR5 SO-DIMM Series DDR5 RAM 64GB (2x32GB) Up to 4800MT/s CL40-39-39-76 1.10V Unbuffered Non-ECC Notebook/Laptop Memory SO-DIMM (F5-4800S4039A32GA2-RS)64 GB£919.56-SO-DIMM · DDR5ECCPrime
Kingston FURY Impact 64GB(2x32GB) 4800MT/s DDR5 CL38 SODIMM Notebook Gaming Memory Kit of 2 - KF548S38IBK2-64, Black64 GB£920.82-SO-DIMM · DDR5-
Crucial RAM 64GB Kit (2x32GB) DDR5 5200MHz (or 4800MHz) Laptop Memory CT2K32G52C42S5 black64 GB£1,079.00-SO-DIMM · DDR5-
TEAMGROUP Elite SODIMM DDR5 64GB (2x32GB) 4800MHz (PC5-38400) CL40 Non-ECC Unbuffered 1.1V 262 Pin Laptop Memory Module Ram - TED564G4800C40DDC-S0164 GB£1,080.67-SO-DIMM · DDR5ECCPrime
NEMIX RAM 64GB (4X16GB) DDR5 5600MHZ PC5-44800 1Rx8 1.1V CL46 288-PIN ECC Unbuffered UDIMM Memory KIT64 GB£2,057.33-SO-DIMM · DDR5ECCPrime
Kingston DDR5 64GB PC 5600 CL46 Server Premier ECC Hynix A Retail64 GB£2,895.87-SO-DIMM · DDR5ECC-

Prices are indicative — last checked 23 October 2026, from Amazon.co.uk. They are not live; check the current price on Amazon before buying. Best £/TB is the lowest at last check.

Frequently asked questions

Does the F2-425 Plus need a RAM upgrade for Plex?

Not necessarily. The Intel N150 handles hardware transcode directly, so the stock 8GB is usually enough for one or two simultaneous streams. Extra RAM helps more with library scanning speed and running Plex alongside other apps than with the transcoding itself.

Can I mix an 8GB module with the factory-fitted 8GB stick?

Yes, adding a second 8GB DDR5 SO-DIMM alongside the original gives you 16GB in dual-channel mode, provided both run at compatible speeds. Matching the same speed and timings avoids the system defaulting to the slower module's spec.

Is DDR5 5600MHz worth paying more for over 4800MHz on this NAS?

Not really. The F2-425 Plus and its Intel N150 platform will not exploit the extra bandwidth in everyday NAS tasks, so a 4800MHz or 5200MHz module works just as well in practice. Buy on price and reliability rather than clock speed here.

How many M.2 NVMe slots does the F2-425 Plus have, and does that affect RAM needs?

It has three M.2 NVMe slots usable as cache or as a standalone storage pool. Running NVMe caching alongside Docker containers is one of the few workloads on this model where 16GB genuinely earns its keep over the stock 8GB.

What is the real maximum RAM for the F2-425 Plus?

TerraMaster specifies 32GB as the ceiling, reached with two 16GB DDR5 SO-DIMMs. The 8GB modules listed on this page get you to a practical 16GB total; going further requires sourcing 16GB sticks specifically.

Does this model support SHR for flexible RAID?

No, the F2-425 Plus supports Basic, JBOD, RAID0 and RAID1 only, not SHR. This is unrelated to RAM choice but worth knowing if you are planning your storage layout alongside a memory upgrade.