disks.co.uk logodisks.co.uk
Home › NAS drives

Cheapest NAS hard drives ranked by price per terabyte

NAS-rated hard drives &mdash; built for 24/7 operation in a network-attached storage box &mdash; ranked by real cost per terabyte (&pound;/TB). These families (WD Red, Seagate IronWolf, Toshiba N300 and enterprise Exos) carry higher workload ratings and longer warranties than desktop drives. Buying several for a RAID array? See our <a href="/guides/nas-hard-drives">NAS drive guide</a> and avoid SMR models (<a href="/guides/smr-vs-cmr">why it matters</a>).

last updated: 2026-08-02 01:22:52

🔥 Today’s best deals

£/TB Price Size Tech Form Factor Condition Description
£21.89£612.8728 TBHDD3.5"Used
£23.43£327.9914 TBHDDUsed
£24.04£624.9926 TBHDD3.5"Used
£26.05 £625.14+2.7% 24h24 TB3.5"Used
£29.54 £531.77-1.5% 24h18 TB3.5"Used
£29.69£475.0016 TB3.5"Used
£30.00£479.9916 TBHDDNew
£30.36£425.0014 TBHDD3.5"New
£30.36£425.0014 TBHDD3.5"New
£30.50£60.992 TBHDD3.5"New
£30.56£489.0016 TBHDDNew
£31.07£435.0014 TBHDD3.5"New
£31.07£435.0014 TBHDD3.5"New
£31.11£560.0018 TBHDDNew
£31.11£560.0018 TBHDD3.5"Used
£31.94£575.0018 TBHDD3.5"Used
£32.19£515.0016 TBHDD3.5"Used
£33.00£197.996 TBHDD3.5"Used
£33.11£595.9918 TBHDD3.5"New
£33.15£397.8212 TB3.5"Used
£33.30£999.0030 TBHDDNew
£33.75 £675.00+10.9% 24h20 TBHDD3.5"New
£34.17£410.0012 TBHDD3.5"New
£34.75£695.0020 TBHDD3.5"New
£34.75£695.0020 TBHDD3.5"New
£34.92 £419.00-0.2% 24h12 TBHDD3.5"New
£35.00£420.0012 TBHDD3.5"New
£35.42£425.0012 TBHDD3.5"New
£35.50£710.0020 TBHDDNew
£36.19£579.0016 TBHDD3.5"New
£36.75£146.994 TBHDD3.5"New
£36.77 £147.06+6.7% 24h4 TBHDD3.5"New
£37.40£374.0010 TBHDD3.5"New
£37.50£1,050.0028 TBHDDNew
£37.80£378.0010 TBHDD3.5"New
£38.33£230.006 TBNew
£38.33£230.006 TBHDD3.5"New
£38.47£384.6710 TBHDD3.5"New
£38.50£230.996 TBHDD3.5"New
£38.82£310.528 TBHDD3.5"New
£38.95 £701.11+0.1% 24h18 TBHDD3.5"New
£39.06£1,249.9932 TBHDDNew
£39.67£237.996 TBHDD3.5"New
£39.70£396.9910 TBHDD3.5"New
£39.90£478.7712 TBHDD3.5"New
£40.48£404.7610 TBHDD3.5"New
£40.63£325.008 TBHDDNew
£40.83 £489.99+3.1% 24h12 TBHDD3.5"New
£40.94 £655.00+21.3% 24h16 TBHDD3.5"New
£41.80 £334.36-0.3% 24h8 TBHDD3.5"New
£41.97 £503.67-42.8% 24h12 TBHDD3.5"New
£42.00£419.9910 TBHDD3.5"New
£42.50£170.004 TBHDD3.5"New
£42.50£255.006 TBHDD3.5"New
£42.67£256.006 TBHDD3.5"New
£42.91£514.8812 TBHDD3.5"New
£42.92 £686.75+1.0% 24h16 TBHDD3.5"New
£43.31£346.508 TBHDD3.5"New
£43.50£173.984 TBNew
£43.68£1,397.8432 TB3.5"New
£43.90£438.9910 TBHDD3.5"New
£44.00£175.994 TBHDD3.5"New
£44.38£355.008 TBHDD3.5"New
£44.49£711.8016 TBHDD3.5"New
£44.73 £178.93-1.9% 24h4 TBHDDNew
£44.80£447.9910 TBHDD3.5"New
£44.88£718.0016 TBHDD3.5"New
£45.51 £1,092.28-4.5% 24h24 TBHDDNew
£45.52£364.198 TBHDD3.5"New
£46.25£370.008 TBHDD3.5"New
£46.25£370.008 TB3.5"New
£46.25£185.004 TBHDD3.5"New
£46.40 £464.00-0.2% 24h10 TBHDD3.5"New
£46.82£1,029.9822 TBHDD3.5"New
£46.88£750.0016 TBHDD3.5"New
£47.00£469.9910 TBHDD3.5"New
£47.06£376.458 TBHDDNew
£47.13£377.008 TBHDD3.5"New
£47.17 £283.00-0.4% 24h6 TBHDD3.5"New
£47.25£378.008 TBHDD3.5"New
£47.25£189.004 TBHDDNew
£47.25£567.0012 TBHDDNew
£47.48£284.856 TBHDD3.5"New
£48.50£388.008 TBHDD3.5"New
£48.76 £682.70-0.8% 24h14 TBHDD3.5"New
£48.99£293.966 TBHDD3.5"New
£49.33£147.993 TBHDD3.5"New
£49.39£197.564 TBHDD3.5"New
£49.50£495.0010 TB3.5"New
£49.75£298.496 TBHDDNew
£49.83£298.976 TBHDD3.5"New
£49.83£299.006 TBHDDNew
£49.89 £997.70-0.2% 24h20 TBHDD3.5"New
£50.00 £399.96-0.0% 24h8 TBHDD3.5"New
£50.00£200.004 TBHDD3.5"New
£50.50 £404.00+31.0% 24h8 TB3.5"New
£50.67£304.006 TBHDD3.5"New
£50.67£304.006 TBHDD3.5"New
£51.51 £515.14-0.2% 24h10 TBHDD3.5"New
£52.38 £209.53+8.0% 24h4 TBHDD3.5"New

Frequently asked questions

How does disks.co.uk rank NAS drives?

We rank every NAS drives by real cost per terabyte (£/TB) — the live Amazon.co.uk price divided by capacity — so the best value appears at the top. Prices refresh several times a day from Keepa, with 24-hour movement and all-time-low flags.

Which NAS drives should I buy?

Choose NAS-rated families such as WD Red Plus/Pro, Seagate IronWolf or Toshiba N300 — they are built for 24/7 use. Avoid SMR models for RAID (see SMR vs CMR), and buy from more than one batch to reduce simultaneous-failure risk.

Why are NAS drives more expensive per terabyte?

NAS drives carry higher workload ratings, RAID-tuned firmware and longer warranties than desktop drives, so they cost a little more per terabyte — but they last far longer under continuous load. Full detail in our NAS drive guide.