disks.co.uk — compare hard drives by price per terabyteEvery UK hard drive & SSD, ranked by real £/TB — live Amazon.co.uk prices
Home › 3TB drives

Cheapest 3TB hard drives & SSDs ranked by price per terabyte

The cheapest 3TB hard drives and SSDs on Amazon.co.uk right now, ranked by price per terabyte (£/TB). Larger capacities usually give better £/TB, so it is worth comparing against nearby sizes before you buy. Prices update daily with 24-hour movement and all-time-low flags.

last updated: 2026-10-19 18:14:10

📦 Latest Amazon Warehouse deals

Amazon’s own returned and open-box stock, usually one unit only — these sell fast. What is Warehouse?

ModusTech 3TB Desktop External Hard Drive (NOT-PORTABLE) — Vault USB-C 3.1 (5Gbps) High-Speed HDD for PC, Mac, Laptop & Console, Backup Storage, 2-Year Warranty
ModusTech 3TB Desktop External Hard Drive (NOT-PORTABLE) — …
£73.46 £79.93 £24.49/TB
📦 8% off Like New 3 mins ago
G-DRIVE 8TB Enterprise Class Desktop external Hard Drive, HDD up to 260 MB/s, USB-C, USB 3.2 Gen 2 (10Gbps), 7200RPM Ultrastar, Fast backup, Premium, Industrial enclosure
G-DRIVE 8TB Enterprise Class Desktop external Hard Drive, H…
£228.33 £343.99 £28.54/TB
📦 34% off Very Good 24 mins ago
SANDISK Optimus GX PRO 850X 2TB NVMe SSD with Heatsink, PCIe 4.0, M.2 2280
SANDISK Optimus GX PRO 850X 2TB NVMe SSD with Heatsink, PCI…
£423.13 £492.99 £211.57/TB
📦 14% off Very Good 24 mins ago
Toshiba 2TB Canvio Flex Portable External Hard Drive for Mac, Windows PC, Smartphone and Tablet use, compatible with most USB-C and USB-A devices, Silver (HDTX120ESCAA)
Toshiba 2TB Canvio Flex Portable External Hard Drive for Ma…
£92.10 £158.62 £46.05/TB
📦 42% off Very Good 24 mins ago
Crucial T700 1TB SSD PCIe Gen5 NVMe M.2 Internal Gaming SSD, Up to 11,700MB/s, Microsoft DirectStorage, PCIe 4.0 Backwards Compatible, Solid State Drive - CT1000T700SSD3
Crucial T700 1TB SSD PCIe Gen5 NVMe M.2 Internal Gaming SSD…
£152.47 £207.94 £152.47/TB
📦 27% off Very Good 24 mins ago
WD Blue SN5000 500GB SSD, M.2 2280 NVMe SSD, Read speeds up to 5000 MB/s, PCIe Gen4, nCache Technology, Free Acronis True Image data migration software, Internal solid state drive.
WD Blue SN5000 500GB SSD, M.2 2280 NVMe SSD, Read speeds up…
£77.39 £129.99 £154.78/TB
📦 40% off Very Good 24 mins ago
SANDISK Optimus GX PRO 850X 2TB NVMe SSD, PCIe 4.0, M.2 2280
SANDISK Optimus GX PRO 850X 2TB NVMe SSD, PCIe 4.0, M.2 2280
£425.57 £474.99 £212.79/TB
📦 10% off Very Good 24 mins ago
SanDisk Portable SSD 2TB, Up to 1000MB/s Read Speeds (New Model)
SanDisk Portable SSD 2TB, Up to 1000MB/s Read Speeds (New M…
£284.63 £311.99 £142.32/TB
📦 9% off Like New 24 mins ago
Acer Predator GP30 External SSD 1TB, Up to 2000 MB/s Read, USB 3.2 Gen2 Portable Solid State Drive with Dynamic RGB Lighting for Smartphones, Tablets, PC and PS5
Acer Predator GP30 External SSD 1TB, Up to 2000 MB/s Read, …
£158.71 £189.99 £158.71/TB
📦 16% off Like New 34 mins ago
BIWIN Black Opal NV7400 512GB SSD, up to 7450MB/s Read Speed Gen4x4 NVMe M.2 2280, Internal PCIe 4.0 Solid State Drive for Gaming, PS5 Ready, Laptop and Desktop
BIWIN Black Opal NV7400 512GB SSD, up to 7450MB/s Read Spee…
£93.87 £97.99 £183.34/TB
📦 4% off Like New 34 mins ago
WD 14TB My Book external hard drive, Desktop HDD with Password Protection, USB 3.0, SuperSpeed USB, software for device management, backup, hardware encryption, works with PC and Mac, Black
WD 14TB My Book external hard drive, Desktop HDD with Passw…
£187.35 £451.01 £13.38/TB
📦 58% off Like New 1 hour ago
SanDisk Optimus GX 7100M NVMe SSD 2TB, Up to 7,250MB/s Read Speeds
SanDisk Optimus GX 7100M NVMe SSD 2TB, Up to 7,250MB/s Read…
£374.78 £402.99 £187.39/TB
📦 7% off Very Good 2 hours ago
SanDisk Optimus GX PRO 850X 1TB NVMe SSD, PCIe 4.0, M.2 2280
SanDisk Optimus GX PRO 850X 1TB NVMe SSD, PCIe 4.0, M.2 2280
£229.27 £241.99 £229.27/TB
📦 5% off Like New 2 hours ago
BIWIN PR2000 External SSD 2TB, Up to 2000 MB/s, IP67 Dust & Waterproof Portable SSD, Up to 3m Drop Protection, Support 4K 60FPS ProRes Record, USB-C USB3.2 Gen2x2, Black
BIWIN PR2000 External SSD 2TB, Up to 2000 MB/s, IP67 Dust &…
£258.62 £269.99 £129.31/TB
📦 4% off Like New 2 hours ago
SANDISK Optimus GX PRO 850X 1TB NVMe SSD with Heatsink, PCIe 4.0, M.2 2280
SANDISK Optimus GX PRO 850X 1TB NVMe SSD with Heatsink, PCI…
£249.85 £259.99 £249.85/TB
📦 4% off Like New 2 hours ago

See all 98 Warehouse deals from the last 24 hours ›

Condition
Region
Fulfilment
Type
Fitting
Form Factor
Capacity 0TB
3TB Rating
Per
What do these mean? Full info in the FAQ ›
£/TB Price Size Tech Form Factor Condition Description Rating Reviews
DELL 91K8T 3TB 7.2K 3.5" NL SAS 6GBPS HDD (Certified Refurbished)£17.66£52.993 TBHDD3.5"Renewed★★★★★ 5.04
Toshiba 3TB 3,5' SATA-600 64MB Cache DT01ACA300 HDD 7.200RPM Internal Hard Drive SATA3 3000GB£30.43£91.303 TBHDDInternalNew★★★★☆ 4.035
Seagate Constellation ES.2 3TB Hard Drive (7200rpm) 6Gb/s SAS 64MB (Internal) - Self Encrypting Drive 256 Model£33.01 £99.04-1.0% 24h3 TBHDD3.5"New★★★★½ 4.72
StarTech 7-Port Industrial USB 3.0 Hub 5Gbps, ESD Surge, TAA (ST7300USBME)£33.33 £99.99-8.3% 24h3 TBHDDExternalNew★★★★½ 4.61,084
WD AV-GP 3 TB Hard Drive£35.48£106.453 TBHDDInternalNew★★★★☆ 4.1251
Western Digital HDD RE 3TB Hard Drive (Serial Attached SCSI (SAS), 3000 GB, 8.89 cm (3.5 "), 11.2 W, 10.9 W, 9.2 W)£40.90£122.703 TBHDD3.5"New★★★★★ 5.01
Western Digital RE 3TB SAS Hard Drive – 3.5 "Hard Drives (3000go, 3000 GB, 7200 rpm, SAS, 32MB)£41.80 £125.39-1.0% 24h3 TBHDD3.5"New★★★★★ 5.01
WD Blue 3TB Desktop Hard Disk Drive - 5400 RPM SATA 6 Gb/s 64MB Cache 3.5 Inch£42.00£126.003 TBHDD3.5"New★★★★☆ 4.42,442
Western Digital RE4 - 3TB 3.5-inch Enterprise SATA Hard Drive - OEM£42.47£127.413 TBHDD3.5"New★★★★☆ 4.2144
Seagate IronWolf, 3TB, NAS, Internal Hard Drive, CMR, 3.5 Inch, SATA, 6GB/s, 5,900 RPM, 64MB Cache, for RAID Network Attached Storage, 3 year Rescue Services (ST3000VN007)£42.51£127.523 TBHDD3.5"Warehouse★★★★☆ 4.45,244
Western Digital RE WD3000FYYZ 3TB 7200RPM SATA3/SATA 6.0 Gb/s 64MB Enterprise Ha£43.33£130.003 TBHDDInternalNew★★★★★ 5.01
Western Digital 3TB Blue Internal Hard Drive£45.00£135.003 TBHDDInternalNew★★★★☆ 4.080
Seagate ST3000DM001 Barracuda 7200.14 3 TB Hard Drive£46.67£140.003 TBHDD3.5"New★★★★☆ 4.018
Seagate Desktop ST3000DM001 internal hard drive 3TB (8.9 cm (3.5 inch), 7200rpm, 64MB cache, SATA III)£46.67£140.003 TBHDD3.5"New★★★★☆ 4.210,006
Seagate ST3000DM001 Barracuda 3000 GB Internal£46.67£140.003 TBHDD3.5"New★★★★☆ 4.03,018
WD Caviar 3TB SATA 6 GB/s 64MB Cache 3.5 inch OEM Internal Hard Drive Green£46.67£140.003 TBHDD3.5"New★★★★☆ 4.12,555
WD 3TB 3.5-inch Enterprise RE SAS Hard Drive£48.33£145.003 TBHDD3.5"New★★★★☆ 4.026
WD Green WD30EZRX - hard drive - 3 TB - SATA 6Gb/s£48.33£145.003 TBHDD3.5"New★★★★☆ 4.312
Toshiba Canvio Ready 3TB Portable External Hard Drive 2.5 Inch USB 3.0 - Black - HDTP230EK3CA£50.00£150.003 TBHDDExternalNew★★★★☆ 4.41,775
Toshiba DT01ACA300 3TB 3.5 inch SATAIII Hard Drive£52.58£157.753 TBHDD3.5"New★★★★☆ 4.1792
WD Purple 3.5"" SATA 6Gb/s 3TB 5400rpm HDD£53.33£159.983 TBHDD3.5"New★★★★☆ 4.42,280
WD Purple 3 TB Surveillance Hard Disk Drive, Intellipower 3.5 Inch SATA 6 Gb/s 64 MB Cache 5400 rpm - FFP Option£53.33£160.003 TBHDD3.5"New★★★★☆ 4.4106
Seagate BarraCuda 3TB Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s 7200 RPM 64MB Cache for Computer Desktop PC (ST3000DM008)£55.11£165.323 TBHDD3.5"New★★★★☆ 4.354
MaxDigital 3TB 7200RPM 64MB Cache SATA 6.0Gb/s (Enterprise Storage) 3.5inch Internal Hard Drive£55.85£167.543 TBHDD3.5"New★★★★★ 5.01
WD Red 3TB 3.5 Inch NAS Internal Hard Drive - 5400 RPM - WD30EFRX£56.00 £168.00+0.9% 24h3 TBHDD3.5"New★★★★☆ 4.322,243
Seagate SkyHawk 3 TB Surveillance Internal Hard Drive HDD – 3.5 Inch SATA 6 Gb/s 256 MB Cache for DVR NVR Security Camera System with Drive Health Management (ST3000VX010)£58.33£175.003 TBHDD3.5"New★★★★☆ 4.2816
Toshiba Canvio Basics 3TB Portable External Hard Drive 2.5 Inch USB 3.0 - Black - HDTB330EK3CA£59.14£177.413 TBHDDExternalNew★★★★☆ 4.42,481
WD 3 TB 3.5-inch Internal SATA Surveillance Storage Hard Drive - Purple£59.76 £179.28-0.1% 24h3 TBHDD3.5"New★★★★☆ 4.4663
WD Purple 3TB Surveillance 3.5" Internal Hard Drive, AllFrame Technology, 180BT/yr, 256MB Cache, 3 Year Warranty£60.00£179.993 TBHDD3.5"New★★★★☆ 4.43,029
Seagate 3 TB 3.5-Inch Constellation ES.3 SATA Internal Hard Drive - Black£60.62 £181.87-0.0% 24h3 TBHDD3.5"New★★★★☆ 4.171
WD 3 TB SATA Hard Drive for 24 x 7 Network Attached Storage - Red£61.67£185.003 TBHDDExternalNew★★★★☆ 4.077
Western Digital WD30PURX - WD Purple 3TB 24x7 - Warranty: 3Y£62.00£186.003 TBHDD3.5"New★★★★☆ 4.42
Seagate ES.2 ST33000650NS 3TB 64MB 600Mbps SATA III Hard Drive£62.67£188.003 TBHDDInternalNew★★★★☆ 4.122
WD Red Pro 3TB NAS 3.5-inch Desktop Hard Drive for 1-16 NAS£63.33£190.003 TBHDD3.5"New★★★★☆ 4.151
Western Digital WD30EFRX - 3TB 3.5 inch NAS SATA3-6Gb/s Red HDD - OEM£63.67£191.003 TBHDD3.5"New★★★★★ 5.01
Western Digital 3TB WD WD30EZAZ Blue 5400RPM 256MB£64.67£194.003 TBHDD3.5"New★★★★☆ 4.46,177
WD 3 TB for NAS 3.5-inch Desktop Hard Drive (Frustration Free Packaging) - Red£65.00 £195.00-2.5% 24h3 TBHDD3.5"New★★★★☆ 4.1186
WD Red 3TB 3.5 Inch NAS Internal Hard Drive - 5400 RPM - WD30EFAX£66.16£198.493 TBHDD3.5"New★★★★½ 4.512,309
Western Digital Red HDD 3000GB Serial ATA III internal hard drive Red, 3.5", 3000 GB, 5400 RPM, Serial ATA III, 64 MB, HDD£66.33£199.003 TBHDD3.5"New★★★★☆ 4.2563
Seagate Barracuda ST3000DM007, 3.5", 3000 GB, Seri£69.66£208.993 TBHDD3.5"New★★★★☆ 4.4604
Seagate SV35 3 TB 3.5-Inch SATA Internal Hard Drive for Network Attached Storage Device - Black£70.97£212.903 TBHDD3.5"New★★★★☆ 4.083
Seagate SV35 3TB 3.5 inch SATA Internal Hard Drive for NAS£70.97£212.903 TBHDD3.5"New★★★★☆ 4.041
Western Digital 3 TB Elements USB 3.0 Portable External Hard Drive - Black£72.00 £215.99-1.3% 24h3 TBHDDExternalNew★★★★½ 4.59,151
Seagate ST3000VN000 - (3TB) 3.5 inch NAS Hard Drive (5900rpm) 6Gb/s SATA 64MB (Internal)£76.67£230.003 TBHDD3.5"New★★★★☆ 4.11,308
Western Digital WD Red Plus 3TB SATA 6Gb/s 3.5" HDD£79.50£238.493 TBHDD3.5"New★★★★½ 4.5615
Seagate (Old Model) Surveillance 3 Tb Serial ATA-600 5900 Rpm 64mb Cache 3.5 Inch Internal Hard Drive (St3000vx006)£79.88£239.633 TBHDD3.5"New★★★★☆ 4.1130
Western Digital WD3003FZEX Performance 3 TB 3.5-Inch Hard Drive - Black£80.33£241.003 TBHDD3.5"New★★★★☆ 4.3875
Avolusion PRO-Z 3TB External USB 3.0 Gaming Hard Drive for PS5£85.69£257.083 TBHDDExternalNew★★★★☆ 4.0207
Western Digital WD30EFPX / 3 TB/Red Plus£88.30 £264.91+0.2% 24h3 TBHDD3.5"New★★★★☆ 4.255
WD 3TB Elements Desktop External Hard Drive - USB 3.0£94.47£283.413 TBHDDExternalNew★★★★½ 4.51,307
WD 3 TB Elements Portable Hard Drive£101.38 £304.15+0.5% 24h3 TBHDDExternalNew★★★★½ 4.613,882
WD 1413011 3 TB My Passport for Mac Portable Hard Drive - Black£103.79 £311.36-0.9% 24h3 TBHDDExternalNew★★★★☆ 4.42,227
Buffalo OP-HD3.0N 3 TB Serial ATA III Hard Disk Drive£110.52£331.553 TBHDDInternalNew★★★★★ 5.01
Toshiba HDTB330XK3CB Canvio Basics 3TB Portable External Hard Drive USB 3.0, Black£278.91£836.743 TBHDDExternalNew★★★★☆ 4.3217

3TB drives: an in-between capacity

3TB sits between the very common 2TB and 4TB tiers, and stock is thinner as a result — most manufacturers have moved their volume production to 2TB and 4TB steps. The table above ranks every available 3TB drive by real cost per terabyte.

  • 3TB HDD: almost always the format available at this size — SSDs rarely ship at exactly 3TB.
  • Check neighbouring sizes: because 3TB is a less common step, 2TB and 4TB often show a better £/TB — compare before buying.

Unless you have a specific reason to want exactly 3TB, it is worth ranking this page against 2TB and 4TB side by side, since the cheaper of the three by £/TB is not always this one.

Frequently asked questions

How does disks.co.uk rank 3TB drives?

We rank every 3TB 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.

What is the cheapest 3TB drives drive right now?

The drive at the top of the table above is the cheapest 3TB drives option by £/TB at the moment. Larger capacities usually cost less per terabyte, so it is worth comparing 3TB drives against the next size up before you buy.

Is a 3TB drives drive good value?

Value depends on £/TB, not the sticker price. Use the ranking above to compare, and open any drive for its full Keepa price history to check whether today's price is genuinely low.

What is a 3TB drives drive good for?

It comes down to how much you store — see our storage sizing guide. As a rule, buy one size up if the £/TB is similar, so you do not run out sooner.