Best Xbox Series X|S storage expansion, ranked by price per TB

Nintendo Switch 2 and Xbox storage, ranked by value on Amazon.co.uk

Updated 1 hour ago

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Quick answer

The Xbox Series X and Series S use a proprietary plug-in expansion card (the Seagate and WD_BLACK C50 cards) rather than the PS5's open M.2 standard. An external USB drive can store Series X|S games and play older backward-compatible titles, but current-gen games run only from the internal SSD or an official card.

As of 21 October 2026

Best price per TB

£18.39

Products tracked

Page updated

1 hour ago

Xbox storage vs PS5 storage

Unlike the PS5, you cannot fit a standard M.2 drive to an Xbox Series X|S for current-gen games. The expansion is a sealed proprietary card that matches the internal SSD speed, so you buy the official Seagate or WD versions.

This makes the Xbox upgrade simpler but less flexible and usually pricier per terabyte than a PS5 M.2 drive.

External drives for older games

An external USB drive still has a role on Xbox: it stores Series X|S games and plays backward-compatible Xbox One, 360 and original Xbox titles directly. Only current-gen games are restricted to the internal SSD or an expansion card.

Live prices right now

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Include used & renewedSort

Top 50 of 99 products

Product	Capacity	Price	Price per TB	Tech	Prime	Buy
Game Drive for Xbox 1TB External Hard Drive CH SN530 512G/1TB XA1 512G/1TB \| Aluminum Alloy, 7x6x3cm Compact, Supports CH SN530/XA1 Drives, Fast Load Times for xbox Certified, Data Rescue Services	1 TB	£18.39	£18.39	HDD · USB	-	Buy on Amazon
Seagate Game Drive for Xbox 5TB, External Hard Drive Portable, USB 3.2 Gen 1, White with built-in green LED bar, Xbox Certified, Data Rescue Services (STKX5000100)	5 TB	£134.99	£27.00	HDD · USB	Prime	Buy on Amazon
WD 5TB 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, BlackUsed	5 TB	£150.99	£30.20	HDD · USB	-	Buy on Amazon
WD 6TB 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, Red 3 other listings of this model £198.99 £206.99 £206.99	6 TB	£198.99	£33.17	HDD · USB	Prime	Buy on Amazon
WD 6TB 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	6 TB	£208.99	£34.83	HDD · USB	Prime	Buy on Amazon
ADATA HV620S 4TB, Slim External Hard Drive, 2.5", USB 3.2 Gen1, 11.5mm Thick, Black - AHV620S-4TU31-CBK (work with PS5/XBOX)	4 TB	£139.95	£34.99	HDD · USB	-	Buy on Amazon
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, BlueUsed	4 TB	£139.99	£35.00	HDD · USB	-	Buy on Amazon
WD_Black P10 6TB Game Drive, Portable External Hard Drive, Speeds Up to 130 MB/s, Works With Console, PC, Playstation, Xbox, Save Up to 125 games, Portable Game Drive, Black 3 other listings of this model £213.99 £213.99 £218.99	6 TB	£213.99	£35.67	HDD · USB	Prime	Buy on Amazon
WD_BLACK P10 5TB 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 1 other listing of this model £182.99	5 TB	£181.99	£36.40	HDD · USB	Prime	Buy on Amazon
Seagate Game Drive Hub 8TB, External Hard Drive Desktop, USB 3.2 Gen 1, Dual USB-C and USB-A ports, Xbox Certified, with RGB LED lighting, Data Rescue Services (STKW8000402)	8 TB	£299.99	£37.50	HDD · USB	-	Buy on Amazon
Slim Portable External Hard Drive HDD - USB 3.0/Type-C High-Speed Storage - Compatible with Windows, Mac, Laptop, PC, Desktop, PS4, PS5 Xbox - Backup for Data, Movies, Games & Photos (Black, 1TB)	1 TB	£39.48	£39.48	HDD · USB	-	Buy on Amazon
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)	4 TB	£169.99	£42.50	HDD · USB	-	Buy on Amazon
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 1 other listing of this model £169.99	4 TB	£169.99	£42.50	HDD · USB	Prime	Buy on Amazon
WD_BLACK P10 2TB Game Drive for Xbox, Xbox storage expansion, Portable external hard drive, On-the-Go Access to your Library, up to 130 MB/s, Includes 1 month Pass UltimateUsed	2 TB	£88.07	£44.04	HDD · USB	Prime	Buy on Amazon
Seagate Game Drive for Xbox 5TB External Hard Drive Portable HDD - USB 3.2 Gen 1, Black with Built-in Green LED bar, Xbox Certified, 3 Year Rescue Services (STKX5000403)	5 TB	£225.53	£45.11	HDD · USB	-	Buy on Amazon
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	4 TB	£181.77	£45.44	HDD · USB	-	Buy on Amazon
Seagate Xbox Game Drive, 5 TB Storage Capacity, LED Light Bar, Compatible with Xbox Series X\|S and Xbox One	5 TB	£238.27	£47.65	HDD · SATA	-	Buy on Amazon
Sonnics 1TB Desktop External Hard Drive USB 3.0 high speed for XBOX ONE & PS4	1 TB	£48.99	£48.99	HDD · USB	-	Buy on Amazon
ModusTech Facet 1TB External Hard Drive Portable USB-C/USB 3.1 Plug & Play Ultra-Slim HDD Hard drive for Backup, Gaming, PC, Mac, Laptop, PS4, Xbox, Smart TVUsed	1 TB	£49.97	£49.97	HDD · USB	-	Buy on Amazon
Meyritech 500GB External Hard Drive Portable USB-C 3.0 Slim Storage HDD \| Compatible with PC Macbook Laptop PS4 Xbox One iMac High-Speed Data Transfer Backup Disk Expandable Plug & Play SuperSpeed	500 GB	£25.99	£51.98	HDD · USB	-	Buy on Amazon
WD BLACK P10 3TB Game Drive for Xbox One for On-The-Go Access To Your Xbox Game library	3 TB	£157.60	£52.53	HDD · SATA	-	Buy on Amazon
Sonnics 1TB USB 3.0 External Portable Hard Drive for Windows PC, Mac, Smart TV, XBOX ONE & PS4, Black	1 TB	£52.99	£52.99	HDD · USB	-	Buy on Amazon
Ezekers 500GB USB 3.0 USB C External Hard Drive - Ultra Fast & Slim Portable HDD Storage for PC, MacBook, Laptop, Xbox One and PS4, Black	500 GB	£26.89	£53.78	HDD · USB	-	Buy on Amazon
Meyritech 1TB External Hard Drive Portable USB Type-C 3.0 Slim Storage HDD \| Compatible with PC Macbook Laptop PS4 Xbox One iMac High-Speed Data Transfer Backup Disk Expandable Plug & Play SuperSpeed	1 TB	£53.99	£53.99	HDD · USB	-	Buy on Amazon
ModusTech Facet 1TB External Hard Drive Portable USB-C/USB 3.1 Plug & Play Ultra-Slim HDD Hard drive for Backup, Gaming, PC, Mac, Laptop, PS4, Xbox, Smart TV 1 other listing of this model £54.91	1 TB	£54.91	£54.91	HDD · USB	-	Buy on Amazon
Sonnics 1TB Blue External Portable Hard drive type C USB 3.1 Compatible with Windows PC, Mac, Smart tv, XBOX ONE & PS4 1 other listing of this model £59.99	1 TB	£54.99	£54.99	HDD · USB	-	Buy on Amazon
ModusTech Facet 500GB External Hard Drive Portable USB-C/USB 3.1 Plug & Play Ultra-Slim HDD Hard drive for Backup, Gaming, PC, Mac, Laptop, PS4, Xbox, Smart TV (Black)	500 GB	£27.91	£55.82	HDD · USB	-	Buy on Amazon
Sonnics 500GB White External Portable Hard drive type C USB 3.1 Compatible with Windows PC, Mac, Smart tv, XBOX ONE & PS4	500 GB	£27.99	£55.98	HDD · USB	-	Buy on Amazon
Sonnics 500GB Dark Grey External Portable Hard drive USB 3.0 super fast transfer speed for use with Windows PC, Apple Mac, Smart tv, XBOX ONE & PS4	500 GB	£27.99	£55.98	HDD · USB	-	Buy on Amazon
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)Used	4 TB	£224.97	£56.24	HDD · USB	-	Buy on Amazon
WD_BLACK P10 2TB Game Drive for Xbox, Xbox storage expansion, Portable external hard drive, On-the-Go Access to your Library, up to 130 MB/s, Includes 1 month Pass Ultimate	2 TB	£113.99	£57.00	HDD · USB	Prime	Buy on Amazon
Toshiba Canvio Gaming 2TB - Portable 2.5’’ External Hard Drive compatible with most PlayStation, Xbox and PC consoles, USB 3.2. Gen 1 Technology, Black (HDTX120EK3AA)	2 TB	£115.99	£58.00	HDD · USB	Prime	Buy on Amazon
WD_BLACK 8TB D10 Game Drive, Portable External Hard Drive HDD Compatible with Playstation, Xbox, PC, & Mac - WDBA3P0080HBK-NESN	8 TB	£467.22	£58.40	HDD · USB	-	Buy on Amazon
Seagate Game Drive STKX4000402 4TB USB 3.2 Licencia Oficial Xbox 1 other listing of this model £251.65	4 TB	£235.00	£58.75	HDD · USB	-	Buy on Amazon
Septpenta Cf To SSD M2 NVME Expansion Card, 2000MB/S High Speed Storage, High Performance Versatile for Xbox Series X S Cfexpress To M.2 NVME SSD External Device Platform	1 TB	£58.99	£58.99	NVMe	-	Buy on Amazon
Aiolo Innovation 500GB Ultra Slim Portable External Hard Drive HDD-USB 3.0 for PC, Mac, Laptop, PS4, Xbox one,Xbox 363-Super Fast Transmission	500 GB	£29.70	£59.40	HDD · USB	-	Buy on Amazon
UnionSine 2.5" Portable External Hard Drive 500GB, USB 3.0 Type-C HDD Storage Compatible for PS4, Xbox, PC, Mac, TV, Desktop, Laptop(Black)	500 GB	£29.86	£59.72	HDD · USB	-	Buy on Amazon
SAISTOR Portable External Hard Drive 500GB HDD USB 3.0 Storage Expansion \| Compatible with PS4, PC, Mac, Laptop, Xbox Office	500 GB	£29.99	£59.98	HDD · USB	-	Buy on Amazon
Sonnics 500GB Silver External Portable Hard drive USB 3.0 super fast transfer speed for use with Windows PC, Apple Mac, Smart tv, XBOX ONE & PS4	500 GB	£29.99	£59.98	HDD · USB	-	Buy on Amazon
Avolusion HD250U3-WH 1TB USB 3.0 Portable External Gaming Hard Drive (for Xbox Series X\|S, Pre-Formatted) - 2 Year Warranty	1 TB	£60.16	£60.16	HDD · USB	Prime	Buy on Amazon
UnionSine External Hard Drive 500GB Ultra Slim Portable Hard Drive USB 3.0 HDD Storage Compatible for PC,Mac, Laptop, Xbox, Xbox one, PS4(Black) 2 other listings of this model £32.59 £32.99	500 GB	£30.43	£60.86	HDD · USB	-	Buy on Amazon
ezekers 320GB USB 3.0 USB C Ultra Slim Portable External Hard Drive HDD Compatible with PC, Mac, Laptop, Xbox, Xbox One, PS4 & PS5, iPhone 15 & 16, Android (Samsung, Sony)	320 GB	£19.99	£62.47	HDD · USB	-	Buy on Amazon
Aiolo Innovation 1TB Ultra Slim Portable External Hard Drive HDD-USB 3.0 for PC, Mac, Laptop, PS4, Xbox one,Xbox 360-Super Fast Transmission	1 TB	£63.99	£63.99	HDD · USB	-	Buy on Amazon
Avolusion 1TB USB 3.0 Portable External Gaming Hard Drive (for Xbox One X, S & Series X\|S - Pre-Formatted) White	1 TB	£65.64	£65.64	HDD · USB	Prime	Buy on Amazon
UnionSine External Hard Drive 1TB Ultra Slim Portable Hard Drive USB 3.0 HDD Storage Compatible for PC,Mac, Laptop, Xbox, Xbox one, PS4(Black) HD2510 2 other listings of this model £68.99 £68.99	1 TB	£66.99	£66.99	HDD · USB	-	Buy on Amazon
Toshiba Canvio Gaming 2TB Portable External Hard Drive USB 3.0, Black for PlayStation, Xbox, PC & Mac - HDTX120XK3AA	2 TB	£149.58	£74.79	HDD · USB	Prime	Buy on Amazon
Slim Portable External Hard Drive HDD - USB 3.0/Type-C High-Speed Storage - Compatible with Windows, Mac, Laptop, PC, Desktop, PS4, PS5 Xbox - Backup for Data, Movies, Games & Photos (Black 250GB)	250 GB	£19.49	£77.96	HDD · USB	-	Buy on Amazon
YOTUO 1TB External Hard Drive, Portable Storage Expansion HDD, USB 3.0 & USB-C for PC, Mac, Desktop, Laptop, Smartphone, PS4, Xbox One, Xbox 360, Office & Game, Black 1 other listing of this model £80.82	1 TB	£80.62	£80.62	HDD · USB	Prime	Buy on Amazon
Slim Portable External Hard Drive HDD - USB 3.0/Type-C High-Speed Storage - Compatible with Windows, Mac, Laptop, PC, Desktop, PS4, PS5 Xbox - Backup for Data, Movies, Games & Photos (Black 320 GB)	320 GB	£25.98	£81.19	HDD · USB	-	Buy on Amazon
UnionSine HD2510 Portable External Hard Drive 320GB Ultra-Thin 2.5 Inch USB 3.0 SATA HDD Storage for PC, Mac, Desktop, Laptop, Wii U, Xbox, PS4 (Black)	320 GB	£26.23	£81.97	HDD · USB	-	Buy on Amazon

Show all 99 products

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Frequently asked questions

What storage does the Xbox Series X|S use?

A proprietary plug-in expansion card (Seagate or WD_BLACK C50) that matches the internal SSD speed. Unlike the PS5, you cannot fit a standard M.2 drive for current-gen games.

Can I use an external drive on Xbox Series X|S?

Yes, to store Series X|S games and to play older backward-compatible titles. Current-gen games must run from the internal SSD or an official expansion card.

Is the Xbox expansion card the same as a PS5 SSD?

No. The PS5 uses an open M.2 NVMe standard, so any compatible drive works. The Xbox uses a sealed proprietary card, so you buy the official Seagate or WD versions.

Why are Xbox expansion cards more expensive than PS5 SSDs?

Because the format is proprietary, there is far less competition than the open M.2 market the PS5 uses, so Xbox cards usually cost more per terabyte. The trade-off is a simpler plug-in upgrade with no heatsink or installation to worry about.

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Last updated: 2026-10-21 06:04:07 UTC. As an Amazon Associate we earn from qualifying purchases. Product prices and availability are accurate as of the date indicated on Amazon.co.uk and are subject to change. Any price displayed at the time of purchase will apply. CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON SERVICES LLC. THIS CONTENT IS PROVIDED AS IS AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.