FOR MCS9865 PCI Serial Expansion Card — 4 × 9‑Pin RS-232 COM Ports (Integrated)

PCI serial expansion card for MCS9865 that provides four integrated RS-232 COM ports. Each port is a standard 9‑pin (DB9) connector delivering RS-232 serial connectivity. Fits into a standard PCI slot to expand serial interface capacity by four ports, ideal for connecting legacy serial devices that require RS232.