PCI RS232 Eight-Port DB9 Serial Expansion Card — COM Adapter with Communication Filtering, Anti-Interference and Anti-Surge Protection

Convert a PCI slot into Eight RS232 COM ports with this DB9 pin adapter expansion card. Built for stable serial communications, the card includes communication filtering plus anti-interference and anti-surge protection to safeguard connected equipment. A compact solution for adding multiple COM interfaces where legacy serial connections are required.