This product is a low profile sized PCI bus-supported card designed for extending RS-232C compatible serial communication functionality on your PC. The < COM-8C-LPCI > has eight RS-232C communication ports. With a 128byte built-in FIFO buffer for transmission and reception of each channel, the product supports a baud rate of up to 921,600bps. It also comes with a Windows/Linux driver, which allows cards to be used as OS-standard COM ports. This product supports CONTEC-defined driver library “API-PAC(W32)” that provide local routines.