NAS Hard Drive 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 WD Red Pro 22TB at £365.00 (£16.59/TB), at or below the lowest price we have recorded for it (£365.00 on 25 Jul 2026). All 40 products in the table are at or near their own recorded low.
This list is meant to be short. A drive earns a verdict here when today's price is at or within 3% of the lowest price we have logged for that exact listing; anything we have not re-priced yet is shown with its check date and no verdict. Every drive is NAS-rated and CMR, which is safe for RAID rebuilds, and the list is ranked by price per terabyte. In a year when most drive discounts are measured against inflated RRPs, this filter removes the noise.
Today's prices, judged against our own records
| Product | Size | Price | Amazon was | Value | Our recorded low | Verdict | |
|---|---|---|---|---|---|---|---|
| WD Red Pro 22TB checked 6 Oct 2026 | 22TB | £365.00 | £16.59/TB | £365.0025 Jul 2026 | Real low | Buy on Amazon | |
| Seagate IronWolf Pro 28TB checked 6 Oct 2026 | 28TB | £949.31 | £33.90/TB | £1,050.0026 Jul 2026 | Real low | Buy on Amazon | |
| Seagate IronWolf 16TBPrime deal checked 6 Oct 2026 | 16TB | £564.53 | £35.28/TB | £579.0026 Jul 2026 | Real low | Buy on Amazon | |
| Seagate IronWolf Pro 12TB checked 6 Oct 2026 | 12TB | £440.00 | £36.67/TB | £567.0022 Jul 2026 | Real low | Buy on Amazon | |
| Seagate IronWolf 12TB checked 6 Oct 2026 | 12TB | £450.00 | £37.50/TB | £969.764 Aug 2026 | Real low | Buy on Amazon | |
| Seagate IronWolf 16TB checked 6 Oct 2026 | 16TB | £605.00 | £37.81/TB | £615.0023 Sept 2026 | Real low | Buy on Amazon | |
| Toshiba N300 18TB checked 6 Oct 2026 | 18TB | £684.99 | £38.06/TB | £685.0213 Aug 2026 | Real low | Buy on Amazon | |
| Seagate IronWolf Pro 16TB checked 6 Oct 2026 | 16TB | £610.00 | £38.13/TB | £625.0028 Aug 2026 | Real low | Buy on Amazon | |
| WD Ultrastar 10TB checked 6 Oct 2026 | 10TB | £382.38 | £38.24/TB | £382.3823 Jul 2026 | Real low | Buy on Amazon | |
| Seagate IronWolf Pro 16TB checked 6 Oct 2026 | 16TB | £615.00 | £38.44/TB | £635.0015 Aug 2026 | Real low | Buy on Amazon | |
| Seagate IronWolf Pro 32TB checked 6 Oct 2026 | 32TB | £1,250.04 | £39.06/TB | £1,499.9923 Jul 2026 | Real low | Buy on Amazon | |
| Seagate IronWolf Pro 20TB checked 6 Oct 2026 | 20TB | £785.47 | £39.27/TB | £797.0420 Aug 2026 | Real low | Buy on Amazon | |
| Seagate IronWolf 6TB checked 6 Oct 2026 | 6TB | £240.00 | £40.00/TB | £282.2423 Jul 2026 | Real low | Buy on Amazon | |
| WD Red Pro 24TBPrime checked 6 Oct 2026 | 24TB | £976.50 | £40.69/TB | £1,129.9322 Jul 2026 | Real low | Buy on Amazon | |
| Seagate IronWolf 6TB checked 6 Oct 2026 | 6TB | £244.98 | £40.83/TB | £262.3123 Jul 2026 | Real low | Buy on Amazon | |
| Seagate IronWolf 6TB checked 6 Oct 2026 | 6TB | £249.98 | £41.66/TB | £255.0023 Jul 2026 | Real low | Buy on Amazon | |
| Toshiba N300 12TB checked 6 Oct 2026 | 12TB | £499.99 | £41.67/TB | £499.9924 Jul 2026 | Real low | Buy on Amazon | |
| Seagate IronWolf Pro 6TB checked 6 Oct 2026 | 6TB | £250.00 | £41.67/TB | £299.9923 Jul 2026 | Real low | Buy on Amazon | |
| WD Red Pro 22TB checked 6 Oct 2026 | 22TB | £939.00 | £42.68/TB | £982.0022 Jul 2026 | Real low | Buy on Amazon | |
| Seagate IronWolf Pro 12TB checked 6 Oct 2026 | 12TB | £520.02 | £43.34/TB | £520.0224 Aug 2026 | Real low | Buy on Amazon | |
| Seagate IronWolf 10TB checked 6 Oct 2026 | 10TB | £438.99 | £43.90/TB | £438.9923 Jul 2026 | Real low | Buy on Amazon | |
| WD Red Pro 16TB checked 6 Oct 2026 | 16TB | £719.00 | £44.94/TB | £777.7915 Sept 2026 | Real low | Buy on Amazon | |
| Seagate IronWolf Pro 10TB checked 6 Oct 2026 | 10TB | £469.99 | £47.00/TB | £469.9922 Jul 2026 | Real low | Buy on Amazon | |
| Seagate IronWolf Pro 4TB checked 6 Oct 2026 | 4TB | £195.99 | £49.00/TB | £228.7723 Jul 2026 | Real low | Buy on Amazon | |
| WD Red Pro 6TB checked 6 Oct 2026 | 6TB | £295.00 | £49.17/TB | £295.5120 Aug 2026 | Real low | Buy on Amazon | |
| WD Red Plus 40TB checked 6 Oct 2026 | 40TB | £1,988.00 | £49.70/TB | £1,988.0024 Jul 2026 | Real low | Buy on Amazon | |
| WD Red Pro 10TB checked 6 Oct 2026 | 10TB | £499.88 | £49.99/TB | £499.886 Aug 2026 | Real low | Buy on Amazon | |
| WD Red Pro 14TB checked 6 Oct 2026 | 14TB | £699.99 | £50.00/TB | £719.9812 Aug 2026 | Real low | Buy on Amazon | |
| WD Red Plus 24TB checked 6 Oct 2026 | 24TB | £1,253.99 | £52.25/TB | £1,253.9926 Jul 2026 | Real low | Buy on Amazon | |
| WD Red Plus 8TB checked 6 Oct 2026 | 8TB | £421.09 | £52.64/TB | £429.0022 Jul 2026 | Real low | Buy on Amazon | |
| Seagate IronWolf Pro 4TB checked 6 Oct 2026 | 4TB | £214.47 | £53.62/TB | £215.0426 Aug 2026 | Real low | Buy on Amazon | |
| Seagate Exos X14 12TB checked 6 Oct 2026 | 12TB | £648.00 | £54.00/TB | £648.0025 Jul 2026 | Real low | Buy on Amazon | |
| WD Red Plus 4TB checked 6 Oct 2026 | 4TB | £218.93 | £54.73/TB | £219.0022 Jul 2026 | Real low | Buy on Amazon | |
| WD Red Plus 20TB checked 6 Oct 2026 | 20TB | £1,097.99 | £54.90/TB | £1,097.995 Aug 2026 | Real low | Buy on Amazon | |
| WD Red Pro 10TB checked 6 Oct 2026 | 10TB | £549.99 | £55.00/TB | £549.9912 Sept 2026 | Real low | Buy on Amazon | |
| WD Red 6TB NAS 6TB checked 6 Oct 2026 | 6TB | £332.97 | £55.50/TB | £333.0024 Jul 2026 | Real low | Buy on Amazon | |
| WD Ultrastar 4TB checked 6 Oct 2026 | 4TB | £229.00 | £57.25/TB | £229.0026 Jul 2026 | Real low | Buy on Amazon | |
| Seagate IronWolf Pro 4TBPrime checked 6 Oct 2026 | 4TB | £229.27 | £57.32/TB | £250.0025 Jul 2026 | Real low | Buy on Amazon | |
| Seagate IronWolf 40TB checked 6 Oct 2026 | 40TB | £2,405.99 | £60.15/TB | £2,405.9925 Jul 2026 | Real low | Buy on Amazon | |
| Toshiba N300 32TB checked 6 Oct 2026 | 32TB | £1,953.99 | £61.06/TB | £1,953.9928 Jul 2026 | Real low | 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.
Used, renewed and SAS drives
Kept out of the ranking: renewed drives carry shorter seller warranties, and SAS drives need a SAS controller that home NAS units do not have.
- WD Ultrastar 6TB SAS, £218.90
- Seagate Exos 4TB SAS, £165.00
- Seagate Exos 10TB SAS, £447.99
- Seagate Exos 10TB SAS, £449.95
- WD Ultrastar 8TB SAS, £403.56
- Seagate Exos 1.8TB SAS, £173.69
- Seagate Exos 2TB SAS, £232.16
- Seagate Exos 4TB SAS, £246.83
- Seagate Exos X20 20TB SAS, £767.11
- Seagate Exos 4TB SAS, £235.47
Is it really a deal?
A drive is listed here only when today's price is at or within 3% of the lowest price we logged for it, which is a stricter test than any RRP badge. 40 of 40 products we have re-priced are at or within 3% of their lowest recorded price; the WD Red Pro 22TB is equal to our recorded low of £365.00, logged on 25 Jul 2026.
Frequently asked questions
Why are so few drives on this list?
Because 2026 drive prices are high and most listings sit above the lows we logged earlier in the year. We would rather show five honest prices than fifty percentage badges.
What does CMR mean and why does it matter?
Conventional Magnetic Recording writes tracks side by side, so RAID rebuilds run at full speed. SMR drives can slow to a crawl during a rebuild, which is why we exclude them.
Is the lowest price per terabyte always the best buy?
Within NAS-rated CMR drives, mostly yes. Higher capacities save bays and power, while enterprise models trade more noise for a lower price per terabyte.
How often is this list refreshed?
During the sale we re-check prices three times a day, and our tracker refreshes every listing on a rolling basis at other times. The checked time under the heading shows when these figures were taken.
Related
- NAS Hard Drives UK 2026: Best Price per Terabyte
- CMR vs SMR for NAS: Which Drives to Buy in 2026
- IronWolf vs WD Red Plus NAS Drives UK 2026
- NAS RAID Calculator 2026: SHR, RAID 5/6 Capacity
- 16TB+ Hard Drive Deals UK – Prime Big Deal Days 2026
- Seagate IronWolf Deals UK – Prime Big Deal Days 2026
- WD Red Plus & Red Pro Deals UK – Prime Big Deal Days 2026
- All Prime Big Deal Days NAS and drive deals