Xbox Series X's WD SN530 SSD has custom ASIC to support PCIe 4.0
WD SN530 1TB Hynix BC711 512G M.2 2230 SSD NVMe for Microsoft Surface Steam Deck | eBay
Different Xbox Series X/S SSD variants spotted, do both have custom ASICs? | ResetEra
Western Digital PC SN530 NVMe SSD | SDBPNPZ-512G
WD SDBPTPZ-1T00 1TB SSD SN530 m.2 2230 SSD NVMe PCIe for Surface Steam Deck PC | eBay
New Western Digital Wd Sn530 2230 Ssd 1tb 512gb Nvme Pcie Gen3 X4 For Microsoft Surface Pro 7+ 8 Steam Deck Original - Solid State Drives - AliExpress
WD 1TB SSD PC SN530 SDBPNPZ 1T00 M.2 2280 NVMe PCIe Gen3 x4 Solid State Drive - Newegg.com
I have learned that the internal storage is using an M.2 2230 Western Digital SN530 SSD | GBAtemp.net - The Independent Video Game Community
Original Western Digital Wd Sn530 2230 Ssd 1tb 256gb Nvme Pcie Gen3 X4 For Microsoft Surface Pro 7+ 8 Steam Deck New - Portable Solid State Drives - AliExpress