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Seagate Storage Expansion Card for Xbox Series X|S 4TB Solid State Drive… competes with other SSDs & Storage products on SpecPicks. Use our Compare tool to view specs side-by-side, or browse the full SSDs & Storage category for alternatives.

Seagate

Storage Expansion Card for Xbox Series X|S 4TB Solid State Drive - NVMe Expansion SSD for Xbox Series X|S (STJR4000400)

Name: Seagate Storage Expansion Card for Xbox Series X|S 4TB Solid State Drive - NVMe Expansion SSD for Xbox Series X|S (STJR4000400)
Brand: Seagate
SKU: B0CNXZS9C5
Price: 269.99 USD
Availability: InStock

By SpecPicks Editorial · Verified 2026-07-06

$269.99

Buy on Amazon — $269.99 Compare to similar ssds & storage

*Price sourced from Amazon.com. Last updated 2026-07-06. Price and availability subject to change.

Bottom line: The Storage Expansion Card for Xbox Series X|S 4TB Solid State Drive - NVMe Expansion SSD for Xbox Series X|S (STJR4000400) is a niche pick — read recent reviews before buying in the ssds & storage category, priced around $269.99. Read recent reviews carefully before committing.

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 niche pick — read recent reviews before buying in the ssds & storage category, based on our editorial and benchmark analysis and our ranking model that weights rating × review-volume × price-fit. Seagate's positioning sits within the broader category mid-tier. 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

✓ 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

Brand	Seagate
Color	Black
Model Name	Expansion Xbox Series X\|S
Unit Count	1.0 Count
Form Factor	2.5-inch
Media Speed	3500 MB/s
Model Number	STJR4000400
Compatibility	Xbox, Switch
Built-In Media	Quick Start Guide
Hard-Drive Size	4 TB
Mfr Part Number	STJR4000400
Number of Items	1
Special Feature	Data Recovery Service
Hardware Platform	Xbox Series X\|S

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.

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*Price sourced from Amazon.com. Last updated 2026-07-06. Price and availability subject to change.