M.2, PCIe Gen4 x4 NVMe
WD Black 4TB WDBLACK SN850P NVMe™ SSD Solid State Drive for PS5™ Consoles - Internal Hard Drive - WDBBYV0040BNC-WRSN
Amazon
WD_BLACK 4TB SN850P NVMe M.2 SSD Officially Licensed Storage Expansion for PS5 Consoles, up to 7,300MB/s, with heatsink - WDBBYV0040BNC-WRSN,Black
Adorama
WD _BLACK SN850P NVMe PCIe Gen4 x4 M.2 2280 Internal Gaming SSD for PS5 Consoles 4TB