Serial Cards & AdaptersIf you're looking for a simple, cost-effective way to connect serial devices in your industrial application or server room, our Serial Cards and Adapters make it easy to add Serial ports (RS-232, RS-422, RS-485 etc.) to your computer through common expansion ports such as PCI and PCI Express, as well as through USB.
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Add 2 RS-232 serial ports to your full height or low profile computer through a PCI Express slot
Add 1 high-speed serial RS-232 port to any PC with a PCI Express slot
Add two RS232 serial ports with COM retention to your laptop or desktop computer through USB
Add four RS232 serial ports to any PC using a single PCI Express expansion slot
Add 4 high-speed RS-232 serial ports to your PC through a low profile PCI Express expansion slot