M.2, PCIe Gen4 x4 NVMe
WD Black 1TB WD_Black SN850P NVMe™ for PS5™ Consoles - - WDBBYV0010BNC-WRSN
Amazon
Western Digital 1TB SN850P NVMe M.2 SSD Officially Licensed Storage Expansion for PS5 Consoles, up to 7,300MB/s, with heatsink - WDBBYV0010BNC-WRSN
Adorama
WD _BLACK SN850P NVMe PCIe Gen4 x4 M.2 2280 Internal Gaming SSD for PS5 Consoles 1TB