EXSYSEX-44041-21 PCIe RS232 Serial Card
The Exsys PCIe I/O adapter provides one RS-232 serial ports with high performance 16C550-type UART. It is designed for PC, thin client or server to provide instant COM port expansion via the PCIe Bus. The card is fully Plug-and-Play compatible. It provides +5V and +12V via the pin 9 from the male connector for a POS System (Power over System).
Data bits are 5 to 8
IO addresses and interrupt are set from the operating system