M.2 B+M to Dual DB9 RS232 Expansion Card — AX99100 Chip, 2 Com Ports (2S DB 9pin) for M2 B M KEY Industrial COM1
High-reliability M.2 B+M key expansion card that provides two DB9 RS232 serial ports for industrial systems. Equipped with the AX99100 chip, this adapter exposes 2 Com Ports (2S DB 9pin) and is intended for use in M2 B M KEY slots. Ideal for connecting legacy serial devices, the card presents a standard COM1 serial port interface while maintaining industrial-grade design and compatibility.
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