Seagate Storage Expansion Card for Xbox Series X|S 512GB Solid State Drive - NVMe Expansion SSD for Xbox Series X|S (STJR512400) - Walmart.com
Seagate 1TB Storage Expansion Card for Xbox Series X|S Internal NVMe SSD Black STJR1000400 - Best Buy
Xbox External Storage Expansion Card For Xbox Series X|s 1tb 2tb Solid State Drive,nvme Pcie Gen 4 Ssd For Xbox Series X|s - Portable Solid State Drives - AliExpress
Seagate 2TB Storage Expansion Card for Xbox Series X|S Internal NVMe SSD Black STJR2000400 - Best Buy
Tianken 1TB Storage Expansion Card NVMe Solid State Drive SSD for Xbox Series X|S
Amazon.com: cablecc M.2 NVMe 2230 M-Key SSD to CF-Express Type-B Adapter for Xbox Series X&S CH SN530 SSD PCIe4.0 Expansion Memory Card (Black CFExpress to NVME for Xbox) : Electronics
1x Hard Drive Conversion Card adapter M2 NVME 2230 PCIE4.0 for Xbox Series X/S 905645648122 | eBay
Looks like there's a simple way to expand Xbox Series X|S storage with a PCIe 4.0 SSD | PC Gamer