Bestbuy offers Seagate - 1TB Storage Expansion Card for Xbox Series X|S Internal NVMe SSD - Black for $129.99 (orig. $199.99) free shipping.

Product Description:
Instantly expand the peak speed capacity of the most-powerful gaming experience Xbox has ever created with the Seagate Storage Expansion Card for Xbox Series X|S. Effortlessly compatible with the Xbox Velocity Architecture, experience the fastest load times and most dynamic worlds—even improving the overall performance of thousands of Original Xbox, Xbox 360, and Xbox One games. The ultimate power, speed, and compatibility is now at your fingertips.