CERRXIAN M2 M+B key PCIe controller card 4 x RS232 COM DB9 port
AX99100 Chipset
Easily Fits in a 80mm M.2 Slot
M2 M+B key to 4 x RS232 Card simultaneously connects 4 devices with RS232 serial ports for data transmission. It has excellent electrical performance design, which not only ensures stable and fast communication capabilities, but also provides users with low-cost, high-performance , and standards-compliant solutions. Mainly used in various embedded systems such as serial network, data acquisition (DAQ) system, POS system, industrial control and building automation equipment, etc.