2-Bay NAS Deals UK – Prime Big Deal Days 2026
Prices checked
Prime Big Deal Days runs 6 to 7 October 2026 for Prime members, with new Today's Big Deals three times a day. We re-check these prices at 08:00, 16:00 and 21:00 UK time.
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.
What is genuinely cheap here today: the UGREEN DH2300 at £167.99 (£84.00/bay), at or below the lowest price we have recorded for it (£176.91 on 25 Jul 2026). 7 of 12 products in the table are at or near their own recorded low; the rest only beat Amazon's reference price or are new to our tracker.
A two-bay NAS is the cheapest way to keep two mirrored copies of your files at home. The models here range from ARM units for phone backups, such as the DH2300 and TS-233, to Intel boxes like the DXP2800 and F2-425 Plus that can run Plex and containers. The fill table adds two of today's cheapest matching drives so you see the real cost of a working RAID 1 setup.
Today's prices, judged against our own records
| Product | Bays | Price | Amazon was | Value | Our recorded low | Verdict | |
|---|---|---|---|---|---|---|---|
| UGREEN DH2300Prime deal checked 6 Oct 2026 | 2 bays | £167.99 | £84.00/bay | £176.9125 Jul 2026 | Real low | Buy on Amazon | |
| QNAP TS-233Prime deal checked 6 Oct 2026 | 2 bays | £169.15 | £84.58/bay | £199.0023 Jul 2026 | Real low | Buy on Amazon | |
| TerraMaster F2-425Prime deal checked 6 Oct 2026 | 2 bays | £209.99 | £105.00/bay | £237.9924 Jul 2026 | Real low | Buy on Amazon | |
| QNAP TS-216G checked 6 Oct 2026 | 2 bays | £249.00 | £124.50/bay | £249.0022 Jul 2026 | Real low | Buy on Amazon | |
| UGREEN DXP2800Prime deal checked 6 Oct 2026 | 2 bays | £263.99 | £132.00/bay | £269.9924 Jul 2026 | Real low | Buy on Amazon | |
| UGREEN DXP2800 GT checked 6 Oct 2026 | 2 bays | £365.99 | £183.00/bay | £412.9926 Jul 2026 | Real low | Buy on Amazon | |
| Synology DS224+ checked 6 Oct 2026 | 2 bays | £489.88 | £244.94/bay | £532.0021 Jul 2026 | Real low | Buy on Amazon | |
| TerraMaster F2-425 PlusPrime deal checked 7 Oct 2026 | 2 bays | £335.99 | £168.00/bay | None yet | No history yet | Buy on Amazon | |
| QNAP TS-264Prime checked 7 Oct 2026 | 2 bays | £674.36 | £337.18/bay | None yet | No history yet | Buy on Amazon | |
| Synology DS223jPrime checked 23 Jul 2026 | 2 bays | £179.97 | £89.99/bay | Awaiting recheck | Not rechecked yet | Buy on Amazon | |
| Synology DS223Prime checked 22 Jul 2026 | 2 bays | £267.55 | £133.78/bay | Awaiting recheck | Not rechecked yet | Buy on Amazon | |
| Synology DS225+ checked 24 Aug 2026 | 2 bays | £366.92 | £183.46/bay | Awaiting recheck | Not rechecked yet | Buy on Amazon |
Verdicts compare today's price with the lowest price we have recorded for the same listing. Amazon was is Amazon's own reference price. Prices can change after our check; the price on Amazon.co.uk at checkout applies.
Is it really a deal?
Two-bay enclosures are compared with their own logged prices; the fill table then shows what a mirrored pair actually costs today. 7 of 10 products we have re-priced are at or within 3% of their lowest recorded price; the UGREEN DH2300 is 5% under our recorded low of £176.91, logged on 25 Jul 2026. 1 sit above what we have recorded, such as the Synology DS725+, now 3% above our recorded low; those are in the collapsed list at the bottom. 3 prices are from an earlier check and are listed with their check date but not judged until we re-price them. 2 are too new to our tracker to measure, so for those we show Amazon's own was-price as Amazon's claim, and the fill-cost table below is the better guide to value.
Cheapest full build for each unit
For each enclosure on this page, the drive size that gives the lowest cost per usable terabyte at today's prices.
| Build | Enclosure | Drives | Total | Usable | £ per usable TB | |
|---|---|---|---|---|---|---|
| UGREEN DH2300+ 2 x WD Red Pro 22TB Real low | £167.99 | £730.00 | £897.99 | 20.0TB RAID 1 | £44.88 | Buy Now |
| QNAP TS-233+ 2 x WD Red Pro 22TB Real low | £169.15 | £730.00 | £899.15 | 20.0TB RAID 1 | £44.94 | Buy Now |
| TerraMaster F2-425+ 2 x WD Red Pro 22TB Real low | £209.99 | £730.00 | £939.99 | 20.0TB RAID 1 | £46.98 | Buy Now |
| QNAP TS-216G+ 2 x WD Red Pro 22TB Real low | £249.00 | £730.00 | £979.00 | 20.0TB RAID 1 | £48.93 | Buy Now |
| UGREEN DXP2800+ 2 x WD Red Pro 22TB Real low | £263.99 | £730.00 | £993.99 | 20.0TB RAID 1 | £49.68 | Buy Now |
| TerraMaster F2-425 Plus+ 2 x WD Red Pro 22TB Real low | £335.99 | £730.00 | £1,065.99 | 20.0TB RAID 1 | £53.28 | Buy Now |
| UGREEN DXP2800 GT+ 2 x WD Red Pro 22TB Real low | £365.99 | £730.00 | £1,095.99 | 20.0TB RAID 1 | £54.77 | Buy Now |
| Synology DS224++ 2 x WD Red Pro 22TB Real low | £489.88 | £730.00 | £1,219.88 | 20.0TB RAID 1 | £60.97 | Buy Now |
Usable space uses the same maths as our RAID calculator, after about 9% formatting overhead. Drive prices are the cheapest in-stock NAS-rated CMR drive at each size when we last checked. Buy Now adds the enclosure and all the drives to your Amazon.co.uk basket in one go.
Prices we checked and would not pay (1)
These are above the lowest price we have recorded for the same listing, or above their 30-day median. They are here so you can see we checked them.
| Product | Bays | Price | Amazon was | Value | Our recorded low | Verdict | |
|---|---|---|---|---|---|---|---|
| Synology DS725+Prime checked 6 Oct 2026 | 2 bays | £649.99 | £325.00/bay | £629.9723 Jul 2026 | Above our low | Buy on Amazon |
Frequently asked questions
Is RAID 1 on a two-bay NAS a backup?
No. A mirror protects against one drive failing, not against deletion, ransomware or theft. Keep a second copy elsewhere, such as a USB drive or cloud storage.
Should I buy a two-bay or a four-bay NAS?
If you expect to need more than one drive's worth of space within three years, the four-bay saves money later. Two bays suit fixed needs like photo backup for a household.
What size drives suit a two-bay NAS today?
Usually the capacity with the lowest price per terabyte in the fill table, which this year often sits between 8TB and 16TB. Buying two matched drives keeps the mirror simple.
Can a cheap two-bay NAS replace Google Photos?
Yes for backup and browsing, with photo apps that back up phones automatically and search your library on the device. The DH2300 and DS223j are the budget options; the Intel units are quicker.
Related
- Best 2-Bay NAS UK 2026: Top Picks for Home Users
- NAS by Bay Size 2026: 2-Bay vs 4-Bay vs 5-Bay UK
- NAS RAID Calculator 2026: SHR, RAID 5/6 Capacity
- Best Budget NAS UK 2026: Top Picks by Bays and Price
- 4-Bay NAS Deals UK – Prime Big Deal Days 2026
- UGREEN DH2300 Deals UK – Prime Big Deal Days 2026
- QNAP TS-233 Deals UK – Prime Big Deal Days 2026
- All Prime Big Deal Days NAS and drive deals