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 a serial port with this USB C to serial with COM port retention
Add a high-speed RS-232 Serial port to your laptop computer via an ExpressCard expansion slot
Add one RS232 Serial, and one IEEE 1284 Parallel port to your computer through a single USB connection
Add four ESD-Protected RS232 ports, with 5V or 12V selectable power output through a PCI Express slot
Add 2 RS232 serial ports to your standard or small form factor computer through a PCI Express expansion slot