Seagate
Storage Expansion Card for Xbox Series X|S 4TB Solid State Drive - NVMe Expansion SSD for Xbox Series X|S (STJR4000400)
*Price sourced from Amazon.com. Last updated 2026-05-21. Price and availability subject to change.
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.
SpecPicks Verdict
SpecPicks classifies Seagate Storage Expansion Card for Xbox Series X|S 4TB Solid State… as a category leader on buyer feedback in the ssds & storage category, based on 30,393 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. Seagate's positioning sits comfortably above the category median. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for ssds & storage of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Highly rated — 4.8★ average across customer reviews
- ✓ Large, well-vetted feedback pool (30,393 reviews)
- ✓ Enjoy long-term peace of mind with the included 3-year limited warranty.
- ✓ Backed by Seagate's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key 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 card—and highest capacity available—that 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 seconds—directly from the internal SSD or the expansion card.
- Enjoy long-term peace of mind with the included 3-year limited warranty.
Full Specifications
| UPC | 763649182376 |
|---|---|
| ASIN | B0CNXZS9C5 |
| Brand | Seagate |
| Color | Black |
| Model Name | Expansion Xbox Series X|S |
| Unit Count | 1.0 Count |
| Form Factor | 2.5-inch |
| Item Weight | 30 Grams |
| Media Speed | 3500 MB/s |
| Manufacturer | Seagate |
| Model Number | STJR4000400 |
| Built-In Media | Quick Start Guide |
| Hard-Drive Size | 4 TB |
| Number of Items | 1 |
Ready to buy?
Seagate Storage Expansion Card for Xbox Series X|S 4TB Solid State Drive - NVMe Expansion SSD for Xbox Series X|S (STJR4000400) is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-21. Price and availability subject to change.
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