Overview

  • Seamless gameplay
    Designed in partnership with Xbox to seamlessly play Xbox Series X or Series S games from the internal SSD or the expansion card without sacrificing graphics, latency, load times, or framerates.
  • High capacity 1TB
    Add 1TB of peak performance storage to your Xbox Series X or Xbox Series S—collect thousands of games across four generations of Xbox without sacrificing performance.
  • Exclusive to Xbox
    The only available expansion card that replicates the Xbox Velocity Architecture —providing faster load times, richer environments, and more immersive gameplay.
  • Quick resume
    Switch between multiple titles in seconds—directly from the internal SSD or the expansion card.
  • Limited warranty
    Enjoy long-term peace of mind with the included 3-year limited warranty.
  • Plug-and-play functionality
    Easily plug in and play, or remove the card and take your games with you.

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Specifications

Capacity & configuration

Storage Capacity
1000 gigabytes
Storage Drive Type
SSD
External Hard Drive Type
Portable

Dimensions & weight

Product Name
1TB Storage Expansion Card for Xbox Series X, S NVMe SSD
Product Height
2.085 inches
Product Width
3 inches
Product Weight
1.06 ounces

Features

Brand
Seagate
Color
Black
Internal Or External
External
Interface(s)
PCIe Gen 4 x2
Security Features
None
Usage
Gaming
Minimum System Requirements
Xbox® Series X or Xbox Series S
UPC
763649142950

Power & warranty

Model Number
STJR1000400
Power Source
USB port
Warranty - Parts
3 years
Warranty - Labor
3 years

Warranty & protection

Included manufacturer warranty

See manufacturer documentation.

Register your product with the manufacturer within 30 days of delivery.

Warranty service

Manufacturer warranty claims are handled by the manufacturer. We are happy to help you find the right contact: (888) 419-6820.

Customer reviews

Write a review
Dad86Oct 22, 2026 · Verified purchase ★★★★★

Needed expansion - I bought one for myself when Xbox first launched and had to get one my son too! Easy to use, never lost a single file, loads games from the expansion quickly!

JamesTOct 19, 2026 · Verified purchase ★★★★★

Completed the experience - Simple and easy, plug and play literally. Completely expanded the horizons for what I could have downloaded on my series s and allowed for almost 2x the amount of games compared to the base series s

KyleSep 8, 2026 · Verified purchase ★★★★★

Works well - The product works well, wish the console came with more space naturally though.

RichieBSep 4, 2026 · Verified purchase ★★★★★

Well worth it. - Got this for my son to expand his Xbox capacity. His Xbox has a 1 TB memory, but he quickly filled that up with some of the larger games he's been downloading. I had been looking for a reasonable expansion card, and found this one at Best Buy. The cost was reasonable, it was Plug and Play, and it more than met the need.

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Questions & answers

Ask a question

Email [email protected] or call (888) 419-6820 during business hours.

Free U.S. shippingOn every order. Leaves our store in 1–2 business days, arrives in 3–5 business days.
Free returns for 30 daysNo restocking fee. We email you a prepaid return label.
We can install it tooOptional in-home delivery, installation and haul-away on large appliances.
Talk to our team(888) 419-6820 · Mon–Sat