Cheapest 4TB External Hard Drives in the UK 2026

£/TB	Price	Size	Tech	Form Factor	Condition	Description	Rating	Reviews
£28.20	£112.79	4 TB	HDD	External	Warehouse	Seagate 4TB Portable Hard Drive \| USB 3.0 (STGX4000400) Buy	★★★★½ 4.5	265,427
£29.91	£119.62	4 TB	HDD	External	Warehouse	Seagate 4TB One Touch Portable Hard Drive \| USB 3.0 (STKZ4000404) Buy	★★★★½ 4.6	3,854
£31.30	£125.21	4 TB	HDD	External	Warehouse	WD 4TB Elements AE Portable External Hard Drive, SuperSpeed USB 3.2 Gen 1/USB 3.0, Plug-and-Play, Formatted for Windows, Black Buy	★★★★☆ 4.3	958
£31.75	£126.99	4 TB	HDD	External	New	WD_BLACK P10 4TB Game Drive, Portable External Hard Drive, Speeds Up to 130 MB/s, USB 3.2 Gen 1, Works with Playstation, Xbox, PC, Includes One Month Discord NITRO offer, Camo Buy	★★★★☆ 4.1	37
£32.36	£129.45	4 TB	HDD	External	New	ADATA HV620S 4TB, Slim External Hard Drive, 2.5", USB 3.2 Gen1, 11.5mm Thick, Black - AHV620S-4TU31-CBK (work with PS5/XBOX) Buy	★★★★½ 4.6	465
£33.25	£132.99	4 TB	HDD	External	New	WD 4TB My Passport portable external storage, external hard drive, USB 3.0, portable HDD with software for device management, backup and password protection, works with PC, Xbox &Playstation, Black Buy	★★★★½ 4.6	104,545
£34.00	£135.99-3.4% 24h	4 TB	HDD	External	New	WD 4TB My Passport portable external storage, external hard drive, USB 3.0, portable HDD with software for device management, backup and password protection, works with PC, Xbox &Playstation, Blue Used £140.79 · £35.20/TB Buy	★★★★½ 4.6	104,546
£34.75	£139.00	4 TB	HDD	External	New	Toshiba Canvio Flex 4TB – Portable 2.5’’ External Hard Drive (HDD) for Mac, Windows PC, Smartphone and Tablet Use, Compatible with Most USB-C and USB-A Devices, Warm Silver (HDTX240ESCCA) Buy	★★★★½ 4.6	235
£35.25	£140.99-12.2% 24h	4 TB	HDD	External	New	WD_BLACK P10 4TB Game Drive for Xbox, storage expansion, Portable external hard drive, On-the-Go Access to your Library, up to 130 MB/s, Includes 1 month Xbox Pass Ultimate Buy	★★★★☆ 4.4	686
£35.65	£142.60	4 TB	HDD	External	Warehouse	Toshiba Canvio Flex 4TB – Portable 2.5’’ External Hard Drive (HDD) for Mac, Windows PC, Smartphone and Tablet Use, Compatible with Most USB-C and USB-A Devices, Metallic Blue (HDTX240ESCCA) Buy	★★★★★ 5.0	2
£36.25	£144.99-10.3% 24h	4 TB	HDD	External	New	WD 4TB My Passport Ultra for Mac, portable external hard drive, USB-C, Mac Compatible, portable external storage, software with defense against ransomware, backup and password protection, Silver Buy	★★★★☆ 4.3	4,587
£38.80	£155.21	4 TB	HDD	External	Warehouse	Seagate 4TB Expansion Desktop Hard Drive \| USB 3.0 (STKP4000400) Buy	★★★★☆ 4.3	18,660
£38.82	£155.27	4 TB	HDD	External	New	Verbatim Store 'n' Go - 4TB, External Hard Drive, Portable USB 3.0 Data Storage, Fast Data Transfer up to 4800 Mbit/s, black, corrugated - 53223 Buy	★★★★½ 4.5	191
£39.25	£157.00	4 TB	HDD	External	New	WD My Passport 4TB Portable External Hard Drive, USB 3.2 Gen 1, Red Buy	★★★★½ 4.6	104,546
£39.75	£159.00	4 TB	HDD	External	New	TOSHIBA Canvio Basics 4TB Portable External Hard Drive USB 3.0, Black Buy	★★★★½ 4.6	1,275
£39.81	£159.23-0.2% 24h	4 TB	HDD	External	New	Toshiba Canvio Ready 4TB - tragbare externe 2,5-Zoll-Festplatte mit SuperSpeed USB 3.2 Gen 1, kompatibel mit Microsoft Windows 8, 10 und 11, schwarz (HDTP340EK3CA) Buy	★★★★☆ 4.4	794
£39.93	£159.70	4 TB	HDD	External	Warehouse	LaCie 4TB Mobile Drive \| USB-C (STLP4000400) Buy	★★★★½ 4.5	1,491
£41.00	£163.99	4 TB	HDD	External	New	Toshiba Canvio Partner 4TB Portable 2.5’’ External Hard Drive, USB 3.2, Mac & Windows compatible. (HDTB540EK3CB) Buy	★★★★½ 4.5	12,557
£41.89	£167.55-1.0% 24h	4 TB	HDD	External	New	WD 4 TB Elements Portable External Hard Drive - USB 3.0, Black, USB 3.0, Plug-and-Play, formatted for Windows, Schwarz Buy	★★★★½ 4.6	276,263
£42.01	£168.02	4 TB	HDD	External	Warehouse	LaCie 4TB Rugged Mini Portable Hard Drive \| USB 3.0 (LAC9000633) Buy	★★★★½ 4.5	23,467
£42.50	£169.99	4 TB	HDD	External	New	Seagate Expansion Portable, 4TB, External Hard Drive, 2.5 Inch, USB 3.0, for Mac and PC, 2 year Rescue Services (STKM4000400) Buy	★★★★½ 4.7	33,020
£42.50	£170.00	4 TB	HDD	External	New	Toshiba Canvio Gaming 4TB – Portable 2.5’’ External Hard Drive compatible with most PlayStation, Xbox and PC consoles, USB 3.2. Gen 1 Technology, Black (HDTX140EK3CA) Buy	★★★★½ 4.5	267
£42.94	£171.77+1.2% 24h	4 TB	HDD	External	New	WD 4TB My Passport for Mac portable external storage, USB 3.0, Mac Compatible external hard drive, software for device management, backup and password protection, Time Machine Ready, Midnight Blue Buy	★★★★☆ 4.4	3,279
£45.32	£181.28	4 TB	HDD	External	New	WD_BLACK P10 4TB Game Drive, portable external HDD, works with Playstation, Xbox, PC, & Mac, save up to 125 games Buy	★★★★½ 4.6	5,085
£46.00	£183.99	4 TB	HDD	External	New	Toshiba Canvio Basics 4TB Portable External Hard Drive USB 3.0, Black - HDTB540XK3CA Buy	★★★★½ 4.6	13,485
£47.62	£190.48	4 TB	HDD	External	New	TOSHIBA Canvio Advance 4TB Portable External Hard Drive USB 3.0, White - HDTCA40XW3CA Buy	★★★★½ 4.6	9,216
£47.73	£190.90-0.4% 24h	4 TB	HDD	External	New	WD 4TB My Passport Ultra, portable external storage, external hard drive, software with defense against ransomware, backup and password protection, Works with PC, Xbox S\|X, PS5, PS4, Midnight Blue Buy	★★★★½ 4.5	11,114
£48.62	£194.47	4 TB	HDD	External	New	Transcend 4TB StoreJet 25M3 Rugged Portable HDD, One Touch Backup Buy	★★★★½ 4.5	839
£54.00	£215.99	4 TB	HDD	External	New	WD 4TB My Book external hard drive, Desktop HDD with Password Protection, USB 3.0, SuperSpeed USB, software for device management, backup, hardware encryption, Black Buy	★★★★½ 4.5	4,123
£54.00	£215.99	4 TB	HDD	External	New	LaCie 4TB Rugged Portable Hard Drive \| USB-C (STFR4000800) Buy	★★★★½ 4.5	8,210
£54.74	£218.95+0.0% 24h	4 TB	HDD	External	New	Seagate Game Drive for Xbox, 4TB, External Hard Drive Portable, USB 3.2 Gen 1, Black with built-in green LED bar, Xbox Certified, 3 year Rescue Services (STKX4000402) Buy	★★★★½ 4.5	7,212
£57.47	£229.89	4 TB	HDD	External	New	Seagate Ultra Touch HDD 4TB, External HDD, Pebble Grey, Post-Consumer Recycled material, USB-C compatibility with PC, Mac & Chromebook, Data Rescue Services (STMA4000400) Buy	★★★★☆ 4.3	1,133
£59.20	£236.81	4 TB	HDD	External	New	WD_BLACK P10 4TB Game Drive, Portable External Hard Drive for On-The-Go Access to Your Game Library, Works with Playstation, Xbox, PC, Save up to 150 games, Includes One Month Discord NITRO offer-PINK Buy	★★★★☆ 4.4	46
£62.50	£250.00	4 TB	HDD	External	New	Seagate One Touch Hub 4TB, External Hard Drive Desktop HDD, USB-C & USB 3.0 port, for Computer Desktop Workstation PC Laptop Mac (STLC4000400) Buy	★★★★☆ 4.0	2,741
£62.56	£250.24-0.1% 24h	4 TB	HDD	External	New	Seagate Expansion Desktop, 4TB, External Hard Drive, USB 3.0, 2 year Rescue Services (STKP4000402) Buy	★★★★½ 4.7	22,298
£64.00	£255.99+2.0% 24h	4 TB	HDD	External	New	LaCie 4TB d2 Professional \| USB-C (STHA4000800) Buy	★★★★☆ 4.4	1,816
£64.84	£259.34	4 TB	HDD	External	New	G-DRIVE ArmorATD 4TB, portable rugged external hard drive, HDD up to 130 MB/s, USB-C (5Gbps), USB 3.2 Gen 1, Thunderbolt 3 Buy	★★★★☆ 4.0	1,534
£68.72	£274.86+1.1% 24h	4 TB	HDD	External	New	WD 4TB Elements External Hard Drive, Desktop HDD storage, USB 3.0 compatible, Fast Transfer rates, Easy add on storage for all your pictures, videos, music and documents, Black Buy	★★★★½ 4.5	19,740
£78.99	£315.95	4 TB	SSD	External	New	Integral SlimXpress Pro 4TB Portable SSD External Hard Drive: USB-C, 2000MB/s Read/Write, USB 3.2 Gen 2x2, Compact Design, Plug & Play, Compatible with Mac, Windows PC, Android, Xbox, PlayStation Buy	★★★★½ 4.5	110
£81.09	£324.35	4 TB	SSD	External	Warehouse	Crucial X10 4TB External Portable SSD Drive - Up to 2100MB/s, USB-C 3.2 Gen2, IP65 Dust and Water Resistant, External Solid State Drive, Matte Blue - CT4000X10SSD9-02 Buy	★★★★☆ 4.3	2,474
£81.70	£326.81	4 TB	SSD	External	Warehouse	SanDisk Extreme Portable SSD 4TB - Up to 1050MB/s Read Speeds (Older Model) Buy	★★★★☆ 4.1	833
£87.50	£349.99	4 TB	SSD	External	New	fanxiang 4TB Portable External SSD, USB-C USB 3.2 Gen2, Up to 2000MB/s Buy	★★★★☆ 4.2	1,036
£95.00	£379.99	4 TB	SSD	External	New	Crucial X9 4TB Portable External SSD - Up to 1050MB/s, External Solid State Drive, Works with PlayStation, Xbox, PC and Mac, USB-C 3.2 - CT4000X9SSD902 Buy	★★★★☆ 4.4	7,984
£96.82	£387.28	4 TB	SSD	External	New	SanDisk Desk Drive SSD 4TB, Up to 1000MB/s Read Speeds Buy	★★★★☆ 4.3	171
£97.50	£389.99	4 TB	SSD	External	New	Lexar ES5 Portable SSD 4TB, up to 2000MB/s R/W, Magsafe External SSD Buy	★★★★½ 4.5	325
£99.00	£395.99	4 TB	SSD	External	New	SSK External SSD 4TB Up to 2000MB/s External Solid State Hard Drives Buy	★★★★☆ 4.2	670
£99.50	£398.01	4 TB	SSD	External	New	SanDisk 4TB Extreme PRO Portable SSD - Up to 2000MB/s Read Speeds - Black Buy	★★★★☆ 4.2	3,627
£100.00	£399.99	4 TB	SSD	External	New	Crucial X10 4TB External Portable SSD Drive - Up to 2100MB/s, USB-C 3.2 Gen2, IP65 Dust and Water Resistant, External Solid State Drive, Black - CT4000X10SSD9C02 Buy	★★★★☆ 4.3	2,474
£101.37	£405.46	4 TB	SSD	External	New	Samsung Portable SSD T5 EVO, 4 TB, USB 3.2 Gen. 1, 460 MB/s read, 460 MB/s write, External hard drive for Mac, PC, Android, Smart TVs and game consoles, Incl. USB-C cable, MU-PH4T0S/EU Buy	★★★★☆ 4.4	644
£103.00	£411.98	4 TB	NVMe SSD	External	New	Acer Predator GM7000 4TB SSD, PCIe Gen4x4 NVMe M.2 SSD with DRAM Cache, Up to 7400 MB/s, PCIe 4.0 Internal Gaming Solid State Drive for PS5 Storage Expansion Buy	★★★★½ 4.7	3,136
£107.41	£429.64	4 TB	NVMe SSD	External	New	WD 4TB My Passport Portable SSD, External NVMe Solid State Drive, USB-C, up to 1050 MB/s, Works with PC, Xbox and Playstation, 2-meters drop resistance, Space Grey Buy	★★★★½ 4.5	9,640
£108.38	£433.50	4 TB	SSD	External	New	SanDisk Extreme PRO Portable SSD 4TB, Up to 2000MB/s Read Speeds, Monterey Buy	★★★★½ 4.8	61
£108.74	£434.94	4 TB	SSD	External	New	Crucial X6 4TB Portable SSD - up to 800MB/s - PC and Mac - USB 3.2 USB-C External Solid State Drive, CT4000X6SSD9 Buy	★★★★½ 4.5	35,047
£109.75	£439.00	4 TB	SSD	External	New	SanDisk 4TB Extreme Portable SSD - Up to 1050MB/s - USB-C, USB 3.2 Gen 2 - External Solid State Drive - SDSSDE61-4T00-G25B Buy	★★★★½ 4.6	2,399
£110.01	£440.04	4 TB	HDD	External	New	iStorage diskAshur3 HDD 4TB Black - Secure portable hard drive - Password protected - Dust & water resistant - Hardware Encryption★ Buy	★★★★★ 5.0	4
£112.50	£449.99	4 TB	SSD	External	New	SanDisk Extreme Portable SSD 4TB - Up to 1050MB/s Read Speeds (Older Model) Buy	★★★★☆ 4.0	4,295
£118.50	£473.99	4 TB	NVMe SSD	External	New	WD_BLACK SN850X NVMe SSD 4TB (Up to 7,300 MB/s read speed, Up to 6,600 MB/s write speed, M.2 2280, PCIe Gen4, Gaming Storage Expansion, High Performance Internal solid state drive) POWERED BY SANDISK Buy	★★★★½ 4.7	17,432
£126.81	£507.22	4 TB	SSD	External	New	SanDisk Creator PRO Portable SSD 4TB, Up to 2000MB/s Read Speeds Buy	★★★★½ 4.8	55
£128.02	£512.08-0.0% 24h	4 TB	SSD	External	New	Kingston XS2000 4TB External SSD USB 3.2 Gen 2 Portable Solid State Drive -SXS2000/4000G Used £399.90 · £99.98/TB Buy	★★★★½ 4.5	3,919
£129.00	£515.99	4 TB	SSD	External	New	Corsair EX400U 4TB Portable External Type-C SSD –, USB 3.2 Gen2 2x2 Connections, Up to 40Gbps, Plug and Play, MagSafe, Includes USB-C to USB-C Cable – Windows PC, iOS Mac – Grey Buy	★★★★☆ 4.2	388
£129.18	£516.73	4 TB	SSD	External	New	SanDisk Extreme PRO Portable SSD 4TB, up to 3,800MB/s Read Speed and 3,700MB/s Write Speed, USB4 Compatible, Rugged Aluminum and Silicone Shell Buy	★★★★½ 4.6	213
£130.00	£520.00	4 TB	SSD	External	New	Samsung Portable SSD T7, 4TB, Titan Gray, USB3.2, Type-C, R/W(Max) 1,050MB/s, Aluminium Case, 3 Years Warranty (MU-PC4T0T/WW) Buy	★★★★½ 4.7	40,719
£130.42	£521.69	4 TB	NVMe SSD	External	New	Acer Predator GM7000 Heatsink 4TB SSD, PCIe Gen4x4 NVMe M.2 SSD with DRAM Cache, Up to 7400 MB/s, PCIe 4.0 Internal Gaming Solid State Drive for PS5 Storage Expansion Buy	★★★★½ 4.6	142
£139.85	£559.39	4 TB	SSD	External	New	Samsung Portable SSD T7 Resurrected 4TB, External Hard Drive, USB 3.2 Gen.2 High-Speed Storage, External SSD for iPhone 17, Mac, PC, Android Devices & Gaming Consoles, Metallic Silver, MU-PD4T0G/WW Buy	★★★★½ 4.5	32
£149.50	£598.00	4 TB	NVMe SSD	External	New	SAMSUNG T9 4TB, Portable SSD, up to 2000MB/s, USB 3.2 Gen 2x2 (20Gbps) NVMe Buy	★★★★½ 4.6	2,729
£158.96	£635.82	4 TB	SSD	External	New	Samsung T9 Portable SSD 4TB, Up to 2,000MB/s, USB 3.2 Gen 2x2 External Solid State Drive, Up to 3 m drop resistant, for Creative professionals, YouTubers, Content creators, Mac compatible, MU-PG4T0B Buy	★★★★½ 4.6	2,152
£172.88	£691.53-0.5% 24h	4 TB	SSD	External	New	Samsung T7 Shield Portable SSD 4 TB - USB 3.2 Gen.2 External SSD Black (MU-PE4T0S/EU) Buy	★★★★½ 4.6	10,534
£182.06	£728.24	4 TB	SSD	External	Warehouse	SanDisk Extreme Portable SSD 4TB, Up to 2000MB/s Transfer Speed(New Model) Buy	★★★★½ 4.6	134
£313.70	£1,254.81	4 TB	SSD	External	New	SanDisk 4TB Creator Desk Drive SSD, Up to 1000 MB/s Read Speeds Buy	★★★★★ 5.0	4
£461.74	£1,846.95	4 TB	SSD	External	New	iStorage diskAshur2 SSD 4TB Red - Secure portable solid state drive - Password protected - Dust & water resistant - Hardware Encryption Buy	★★★★☆ 4.1	73

4TB external drives: where desktop drives take over

4TB external is the first size where a mains-powered desktop drive (WD Elements Desktop, Seagate Expansion Desktop) is clearly cheaper per terabyte than a portable one — but 4TB portables (My Passport, Seagate Portable) still exist for people who need to carry it. The table above ranks both by real £/TB.

Desktop 4TB HDD: the value pick for a backup drive that lives on a desk.
Portable 4TB HDD: the largest common bus-powered size; slightly more per terabyte, no power brick.
4TB external SSD: a premium option for fast, portable working storage.

See all 4TB drives for internal options, or 6TB external drives if you expect to outgrow 4TB.

Frequently asked questions

How does disks.co.uk rank 4TB external drives?

We rank every 4TB external 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 4TB external drives option right now?

The top of the table above is the cheapest of the 4TB external drives by £/TB today. Desktop (mains-powered) external hard drives are usually the cheapest per terabyte; portable bus-powered drives and external SSDs cost more but need no power cable and survive being carried around.

Should I buy an external hard drive or an external SSD?

For backups and media a hard drive gives far more terabytes per pound. Choose an external SSD if you will work directly off the drive (video editing, games), need shock resistance, or want it fast and pocketable — see SSD vs HDD.

Is an internal drive cheaper than an external one at this size?

Often, yes — an external enclosure adds cost. If you can fit a drive inside a PC or NAS, compare the internal listings on the full capacity page before paying for the USB case. If you need plug-and-play on a laptop, Mac or console, external is the right choice.

Cheapest 4TB external hard drives & SSDs ranked by price per terabyte

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