Startech Pci-express E Serial Card — Adds Two Rs232 and Two Rs422-485 Ports to Your Pc

Expand your Pc's serial connectivity with this Startech Pci-express E expansion card. Installed in a Pci-express E slot, it supplies Two Rs232 ports and Two Rs422-485 ports, allowing you to connect multiple serial devices through a single interface.You may also like Startech Add Four USB 3.0 Ports — Two Independent Channels.