M.2 B+M to 2 x DB9 RS232 Serial Ports Expansion Card — AX99100 Chip, 2S 9pin Industrial COM1, M2 B M KEY

Convert an M.2 B+M (M2 B M KEY) slot into two industrial RS232 serial interfaces with this expansion card. Equipped with the AX99100 Chip, the card provides 2 Com Ports (2S) using standard DB9 9pin connectors for reliable RS232 communication and COM1 compatibility. Key features: - Interface: M.2 B+M (M2 B M KEY) expansion - Chipset: AX99100 Chip - Ports: 2 Com Ports (2S) - Connector type: DB9 / DB 9pin - Protocol: RS232 serial - Grade: Industrial, COM1 serial port support This compact M.2 solution is ideal for adding two DB9 RS232 serial ports to systems that accept M.2 B+M key cards without changing any listed specifications.