Amazon.com: WD_BLACK SN850X 4TB NVMe SSD - M.2 2280, Up to 7,300。Amazon.com: WD_BLACK 4TB SN850P NVMe M.2 SSD Officially Licensed。WD_BLACK SN850X Gaming 4TB Internal NVMe Solid State Dive。ご覧いただきありがとうございます。Amazon.com: WD_Black SN850X 4TB NVMe SSD with Heatsink - M.2 2280。I sold it because I wanted to upgrade. WD_BLACK SN850X M.2 NVMe SSD with 4TB storage. Tested and confirmed working. Includes original box. Suitable for desktop PCs, laptops, and PS5.- Manufacturer: Western Digital- Model: WD_BLACK SN850X WDS400T2X0E- Storage Capacity: 4TB- Interface: M.2 2280 PCIe Gen4 NVMe- Max Read Speed: 7300MB/s- Max Write Speed: 6600MB/s- Form Factor: M.2 (Type2280)- Flash Memory Type: TLC 3D NAND- Thickness: 2.38mm#SN850X#NVMe#SSD#4TB#4000GB#WDS400T2X0E#Storage