Seagate Storage Expansion Card for Xbox Series X|S 4TB Solid State Drive - NVMe Expansion SSD for Xbox Series X|S (STJR4000400)
Condition: New
Buy Now, Pay Later
As low as
/ mo
Learn more
- – Up to 36-month term if approved
- – No impact on credit
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
30-day returns
Learn more
FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
Only 5 left in stock, order soon!
Arrives
Jan 14 – Jan 17
Recently Viewed
Capacity: 4TB
Style: Xbox SSD Expansion
Features
- Designed in partnership with Xbox to seamlessly play Xbox Series X|S games from the internal SSD or the expansion card without sacrificing graphics, latency, load times, or framerates.
- The only 4TB expansion cardand highest capacity availablethat maximizes Xbox Series X storage, allowing you to collect thousands of games across four generations of Xbox without sacrificing performance.
- Officially licensed storage expansion card designed using Xbox Velocity Architecture to provide faster load times, richer environments, and more immersive game play.
- Quick resume means gamers can switch between multiple titles in secondsdirectly from the internal SSD or the expansion card.
- Enjoy long-term peace of mind with the included 3-year limited warranty.
Description
Instantly expand peak speed and capacity of the most-powerful gaming experience Xbox has ever created with the Seagate Storage Expansion Card for Xbox Series X. Effortlessly compatible with the Xbox Velocity Architecture, experience lightning-fast load times and most dynamic worlds—even improving overall performance of thousands of Xbox, Xbox 360, and Xbox One games. Ultimate power, speed, and compatibility is now at your fingertips.
Digital Storage Capacity: 4 TB
Hard Disk Interface: PCIE x 4
Connectivity Technology: eSATA
Brand: Seagate
Special Feature: Data Recovery Service
Hard Disk Form Factor: 2.5 Inches
Hard Disk Description: Solid State Drive
Compatible Devices: Gaming Console
Installation Type: Internal Hard Drive
Color: Black
Hard Drive: 4 TB Solid State Drive
Brand: Seagate
Series: Expansion Xbox Series X|S
Item model number: STJR4000400
Item Weight: 1.06 ounces
Package Dimensions: 6.38 x 3.03 x 2.13 inches
Color: Black
Hard Drive Interface: PCIE x 4
Manufacturer: Seagate
Language: English
Date First Available: March 14, 2025
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Jan 14 – Jan 17
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Capacity: 1TB
Style: Xbox SSD Expansion
Works well, and is ready to plug and play out of the box. Highly recommended as part of a storage solution for your Xbox needs. Even if you have a 1tb Xbox this will match its 802gb of usable space and top it off with an additional 117gb, for a total of 919gb of added storage. I have a 512gb Series S, which is only 364gb user available space. So you can imagine the dramatic increase given by this drive. The internal storage is currently home to eight games, five of which are AAA titles. Total space taken is 359gb, along with 1.5gb of apps. So, 361.5gb of 364 available, and that's a wrap. This Seagate drive? 24 games installed on it, 15 are AAA titles, and there is still 14.3 gb leftover. So as the raw numbers suggest and all other things being equal, yes. It tripled the storage of the internal drive and functions just like it. Fast, seamless, no fuss at all. Great product that helps organize, expand, and run games on your Xbox. A worthy purchase to be sure.
...
show more
Reviewed in the United States on December 4, 2025 by J.H.
Capacity: 1TB
Style: Xbox SSD Expansion
TLDR at the very bottom I was skeptical about buying one, all that money for storage, really? No thank you. Well... that worked for me for a while lol but eventually I hit that point where it was unavoidable, I had to get something. I deal with tech all the time, I'm no expert, but I'd like to think my judgement is solid, fair, and reasonable. Anyway I'll get on to it. Pros: I know being pricey isn't exactly a pro because it is no doubt expensive but in my honest opinion it's well worth it for both but especially the 1TB. I would recommend waiting for a sale or something if you're strapped. Don't fall for FOMO. They're extremely reliable, function is genuinely impressive(no exaggeration, it is just as advertised and is just as fast as the internal drive), it is compatible with both the Xbox Series X & Xbox Series S ONLY, should be obvious but just in case. I do like the design it is very sleek, sexy, and thin but still built solid. It reminds me of the memory cards for all the old consoles we had to buy back in the day. The quality impressed me as well, no it's nothing revolutionary, but they are bult very well and they have a clear protection cap to put on the end of the card for when/if you take it out of the console so it doesn't get scratched. Small thing but I like the size, I was expecting it to be massive-ish but it's kinda tiny Cons: I do wish it wasn't as much as it is, it is a lot of money but you CAN find deals, also look at the New & Used section as well. I still feel like it's worth it for the 1TB but the 2TB price is ridiculous. $250+ - $350+ cannot be justified. It's worth MAYBE $220 at most. I wish there was a hub for the Series X and S so you could have 2 Storage Expansion Cards plugged into the console all at once because I have three of the 1TB Cards. Be VERY careful pulling it OUT of the console, it can scratch the plug in part of the Card easily so take it out as straight as possible if you have to take it out. Don't be wiggling it. The scratches won't ruin it but still... be careful. Anyway TLDR; I do recommend it, very solid product and I think the 1 TB is the perfect option but if you do have the money I'd get the 2 TB but ONLY if the 2TB is on sale. Don't forget sometimes they have the payment plans and also look for some that are in the New & Used section, you can genuinely get better prices occasionally and yes they are worth it even if it is Used. Might get one with a slight scratch or tiny cosmetic damage. They always test the product before sending it to you.
...
show more
Reviewed in the United States on July 26, 2025 by James Jones
Capacity: 4TB
Style: Xbox SSD Expansion
Review is for the 4 TB card. Expensive little bugger. It actually holds 3.7 TB once formatted (and it does come formatted). I.m the kind of guy who likes to keep my library local rather than download-delete-redownload due to capacity limitations. So I’ve got the 1 TB internal and two 16 TB Western Digital Element externals. I had a 1 TB expansion card but decided to upgrade to the 4 TB. Games (especially the X|S jobs) are getting so darn big these days — looking at you Call Of Duty — ridiculous). Some of them 200+ GB. I found myself moving stuff around way too much. Now having 5 GB (well 4.5 GB for games after formatting) between the internal and expansion is a breath of fresh air for me. Again, a bit pricey, but if you can swing it it’s soooo nice having the extra space for those X|S games (which MUST be played from either the internal or expansion). A few games are tagged as X|S but are still Durango under the hood so they can still be played from the externals without swapping (Halo MCC and Mass Effect Legendary come to mind). It was important to me so I didn’t mind dropping the $$$. Works great, just like the old 1 TB internal had n there….just bigger.
...
show more
Reviewed in the United States on November 13, 2025 by Mark Clyde Mark Clyde
Capacity: 2TB
Style: Xbox SSD Expansion
For years, I used an external SSD with my Xbox, and while it did the job, it had its limitations — especially when it came to playing Series X/S games. When I saw this 2TB expansion card on sale during Prime Day, it was an instant buy. Funny enough, I paid about the same price years ago for an SSD with 1TB less storage and none of the X/S perks. This card is made for Xbox. It slides right into the dedicated slot, supports full Series X/S performance, and works flawlessly with Quick Resume. No setup headaches, no transferring files around — just plug in and play. With the size of modern games constantly climbing, this is practically a must-have. If you’re like me and enjoy rotating through a bunch of titles (not just GTA V and Call of Duty), having 3TB of total storage means no more uninstalling one game just to play another. Finally. If you're still managing space manually or stuck on external drives that can't run next-gen games natively — do yourself a favor and upgrade. This was worth every penny.
...
show more
Reviewed in the United States on July 21, 2025 by Impacct Entertainment
Capacity: 2TB
Style: Xbox SSD Expansion
Is extremely easy to use, literally plug into the Xbox, a popup will show and ask if you want to use it for storage and say yes, and then boom it works, I had it for a few months now and the games installed never crash or anything.
Reviewed in the United States on December 24, 2025 by Bradly Slater
Capacity: 1TB
Style: Xbox SSD Expansion
Got the smallest and cheapest version of it and I can fit like 90% of my games on my console now. The others are for sure overpriced but spring for the 1 or 2tb one and you won’t regret it.
Reviewed in the United States on December 29, 2025 by Lenjamin Cactus
Capacity: 4TB
Style: Xbox SSD Expansion
3.75TB out of 4TB is usable, the "data tax" discrepancy is getting annoying. It's a proprietary SSD solution for a proprietary console, it works solidly as intended, only genuine complaint would be...Xbox 360 cards had Labels, juggling multiples of these expansion cards is getting difficult.
Reviewed in the United States on December 2, 2025 by D. Gutridge
Capacity: 1TB
Style: Xbox SSD Expansion
great price for product easy to install and use to expand memory in xbox series x
Reviewed in the United States on December 22, 2025 by paul