M.2 to 4 Serial Ports and 1 Parallel Port Card RS232 for Tongxin Multi Expansion B Key M NGFF WCH384
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Port Type:4 Port RS232 Serial+1 Parallel Port Interface Type:M.29(M+B Key) Data Bits:5, 6, 7, 8 Stop Bits:1, 2 Parity Bit:Even,Odd,Mark, Space,NONE ...
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