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 8 RS232 serial ports to your computer via a single PCI Express slot
Add RS232, RS422 and RS485 support to your laptop or desktop computer via USB