Best Synology NAS UK 2026: Top Picks by Bays and Price
The best Synology NAS ranked on capability, with UK prices
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The best Synology NAS for most UK buyers is the DS923+, around £532.00 at last check for the equivalent DS224+ tier, though for a 4-bay the DS923+ family remains the sensible middle ground because it takes open drives rather than Synology's validated-only list. If you can stretch to a 2025 model, the DS925+ (around £468.84 as a 32TB kit) is faster and more efficient, but you're locked into buying from Synology's approved drive list. For most people wanting flexibility and a proven platform, older AMD and Intel models still make more sense in 2026.
Best Synology NAS by budget
Three sensible tiers depending on bays needed and how much drive flexibility matters to you.
Which should you pick
Choose an older model (DS224+, DS423+, DS923+) if
- You want to use whatever drives you already own or can buy cheapest
- You value open compatibility over the newest CPU or networking
- You're building a 4-bay NAS with ECC RAM without vendor lock-in (DS923+)
- You don't need 2.5GbE and are happy with dual 1GbE
Choose a 2025 model (DS925+, DS1525+) if
- You're buying new drives anyway and don't mind sourcing from Synology's validated list
- You want 2.5GbE networking out of the box
- You need the extra bay count and RAM ceiling of the DS1525+ for a growing library
- You're comfortable with the compatibility trade-off for a newer platform
Why drive validation matters more than the spec sheet
Synology's 2025 refresh, covering the DS925+ and DS1525+, introduced a validated-drive list that restricts which HDDs and SSDs are officially supported. This isn't a minor footnote. If you already own a stack of drives from an older NAS, or you like sourcing drives on price from any reputable brand, this policy directly affects which unit you should buy. Older models such as the DS224+, DS423+ and DS923+ remain open, meaning any compatible SATA drive works without warnings or degraded support.
None of these models, AMD or Intel, offer hardware video transcoding on current DSM. The Intel Celeron J4125 units (DS224+, DS423+) and the AMD Ryzen models (DS923+, DS925+, DS1525+) are all built for storage, backup, snapshots and Docker containers rather than Plex-style transcoding. If real-time transcoding is a priority, a Synology DiskStation is not the right appliance family for that job; look at dedicated media-server hardware instead.
The AMD-based DS923+, DS925+ and DS1525+ all support ECC RAM, which genuinely matters for data integrity on larger arrays, particularly if you're running Btrfs with checksumming. The Intel-based DS224+ and DS423+ do not offer ECC, which is a reasonable trade-off for smaller, lower-cost setups but worth knowing if you're storing anything irreplaceable.
A plain caveat
Do not buy the DS925+ or DS1525+ expecting to slot in old drives from a previous NAS without checking Synology's validated list first. If your drives aren't listed, you may see reduced functionality or support warnings. If drive flexibility matters to you more than having the newest platform, the DS923+ or DS423+ remain the more sensible choice in 2026.
Synology NAS, UK prices
Prices are indicative — last checked 7 September 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 DS925+ support hardware transcoding?
No. Like every model in this line-up, the DS925+ has no hardware transcode support on current DSM. It's built for storage, backups and containerised apps, not media transcoding.
Can I use any hard drive in the DS925+ or DS1525+?
Officially, no. Both 2025 models enforce a validated-drive list, meaning Synology only guarantees full support for drives it has tested and approved. Older models like the DS923+ and DS423+ take open drives without this restriction.
Is the DS923+ still worth buying in 2026 given the newer DS925+ exists?
Yes, particularly if drive flexibility matters to you. The DS923+ uses the same AMD Ryzen architecture and ECC RAM support as the DS925+, but without the validated-drive restriction, making it a sound choice for anyone wanting to reuse existing drives.
What's the real difference between the DS923+ and DS925+?
The DS925+ has a quad-core Ryzen V1500B versus the DS923+'s dual-core R1600, plus 2.5GbE networking instead of 1GbE. The trade-off is the validated-drive list on the DS925+, which the DS923+ does not enforce.
Should I buy the DS224+ or step up to a 4-bay model?
The DS224+ suits two-drive mirrored setups for backups or simple file storage on a budget. If you need more capacity headroom, redundancy options like RAID 5, or plan to expand storage later, a 4-bay unit like the DS423+ or DS923+ is the better long-term choice.
Do any of these Synology models support 10GbE?
The DS923+ has a 10GbE upgrade option via its expansion slot. The DS925+ and DS1525+ ship with 2.5GbE as standard rather than 10GbE.