IGN - Microsoft announced a 2TB Seagate expansion card for the Xbox Series X|S that costs $400, which is $100 more than buying a new Xbox Series S itself. | Facebook
Seagate | Storage Expansion Drive for Xbox Series X|S - YouTube
Amazon.com: XPC Technologies 2TB M.2 2230 NVMe PCIe SSD Gen 4.0x4, 4500MB/s Read, 4000 MB/s Write (Upgrade for Steam Deck, Surface Pro 7+, Surface Pro 8, Surface Laptop 4) : Electronics