Serial Cards & Adapters
If 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.Filter by:
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2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Dual Serial DB9 Card - 16950 UART - Expansion Card - Windows, macOS, Linux
PCI Express to Serial Adapter | 921.6Kbps | Windows® and Linux® Compatible
2223+ In stock
1 Port FTDI USB to Serial RS232 Adapter Cable with COM Retention
Add an RS232 serial port with COM retention to your laptop or desktop computer through USB
4796+ In stock
1 Port USB to RS232 DB9 Serial Adapter Cable - M/M
Add an RS232 serial port to your laptop or desktop computer through USB
5843+ In stock
8 Port USB to DB9 RS232 Serial Adapter Hub – Industrial DIN Rail and Wall Mountable
Add 8 DIN Rail-mountable RS232 Serial ports to any system through USB
203+ In stock
1 ft USB to RS232 Serial DB9 Adapter Cable with COM Retention
Add an RS-232 serial port to your laptop or desktop computer through USB; features COM port retention
1324+ In stock
1-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card - Windows, macOS, Linux
PCI Express to Serial Adapter | 921.4Kbps | Windows® and Linux® Compatible
578+ In stock
3ft USB to RS232 DB9 Serial Adapter Cable - M/M
Add an RS232 serial port to your laptop or desktop computer through USB
1004+ In stock
2 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART
Add 2 RS-232 serial ports to your standard or small form factor computer through a PCI Express expansion slot
387+ In stock
4 Port RS232 PCI Express Serial Card w/ Breakout Cable
Add 4 RS232 serial ports to any PC using a single PCI Express expansion slot
151+ In stock
4 Port USB to DB9 RS232 Serial Adapter Hub – Industrial DIN Rail and Wall Mountable
Add 4 DIN Rail-mountable RS232 Serial ports to any system through USB
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