Please confirm the hard disk interface before purchasing M.2 NGFF hard disk is suitable for B key interface Identification characteristics: 1. there is no NVME or PCLE on the hard disk or label; 2. When the single hard disk chip and socket are facing up, the gap on the socket is on the left; 3. Double-notch hard disk, without NVME or PCLE, count the number of interface pins. Specifications: Second-variable solid-state hard disk, high-speed USB3.1 Type-c interface 1G second transmission, solid-state hard disk supporting NGFF protocol. Aluminum alloy dissipates heat quickly. Small, light and convenient to take off. Compatible with more devices, supporting OS, Windows series, Android series, etc. Package Included: 1* mobile hard disk box 1* screwdriver 1* data cable