Key B (Pins 12-19 Notched), Primary
Interfaces: PCIe x2, SATA, USB 2.0 / 3.0, Audio, UIM (SIM card), I2C, SMBus;; Common Applications SSDs (SATA or PCIe x2 NVMe), WWAN (3G/4G/5G cellular modems), GPS; Modules can be 22mm wide and various lengths; Support 2230 B-key or B+M-key to 2242 extension, Support 2230 SSD or LTE card; Support MU736/ME936/ME906/EM7305 EM7345/EM7355/EM7430 Serial B-key LTE/4G Card.; It can't convert NVME to SATA, also can't convert SATA to NVME. Extend the SSD from 2230 socket to 2242 SSD; PCB Card only. (not include SSD or LTE Card); The M. 2 connector has 75 positions, with pins on both the top and bottom edges. Pin numbering is from 1 to 75. Not all pins are used by all modules; the specific pins used depend on the module's keying and the interfaces it implements.