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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.
31 to 40 of 71 Results
2 Port Low Profile Native RS232 PCI Express Serial Card with 16550 UART
PEX2S553LP
2 Port Low Profile Native RS232 PCI Express Serial Card with 16550 UART

Add 2 high-speed RS-232 serial ports to your low profile/small form factor computer with a PCI Express expansion slot

$68.99
162+ In stock In stock
CA: 25 | US: 137
In stock Learn More
1 Port USB to RS232 DB9 Serial Adapter with Detachable 6ft USB A to B Cable
ICUSB232D
1 Port USB to RS232 DB9 Serial Adapter with Detachable 6ft USB A to B Cable

Add an RS232 serial port to your laptop or desktop computer through a detachable USB cable

$23.99
1118+ In stock In stock
CA: 68 | US: 1050
In stock Learn More
1S1P Native PCI Express Parallel Serial Combo Card with 16950 UART
PEX1S1P952
1S1P Native PCI Express Parallel Serial Combo Card with 16950 UART

Add a parallel and serial port through a standard or low-profile PCI Express slot

$85.99
230+ In stock In stock
CA: 17 | US: 213
In stock Learn More
2 Port Industrial Wall Mountable USB to Serial Adapter Hub with DIN Rail Clips
ICUSB2322I
2 Port Industrial Wall Mountable USB to Serial Adapter Hub with DIN Rail Clips

Add 2 DIN Rail-mountable RS232 Serial ports to any system through USB

$94.99
261+ In stock In stock
CA: 14 | US: 247
In stock Learn More
1 Port FTDI USB to Serial RS232 Adapter Cable with Optical Isolation
ICUSB2321FIS
1 Port FTDI USB to Serial RS232 Adapter Cable with Optical Isolation

Add an RS232 serial port with circuit isolation to your laptop or desktop computer, through USB

$169.99
258+ In stock In stock
CA: 6 | US: 252
In stock Learn More
6 ft Professional RS422/485 USB Serial Cable Adapter w/ COM Retention
ICUSB422
6 ft Professional RS422/485 USB Serial Cable Adapter w/ COM Retention

Add an RS422/485 serial port to your system through USB; features COM port retention

$91.99
309+ In stock In stock
CA: 11 | US: 298
In stock Learn More
2S1P Native PCI Express Parallel Serial Combo Card with 16550 UART
PEX2S5531P
2S1P Native PCI Express Parallel Serial Combo Card with 16550 UART

Add 1 parallel port and 2 RS-232 serial ports to your standard or low-profile computer through a PCI Express expansion slot

$65.99
55+ In stock In stock
CA: 15 | US: 40
In stock Learn More
Low Profile PCI Express Serial Card (RS232) (16550 UART, Native PCIe Chipset)
PEX1S553LP
1 Port Low Profile Native RS232 PCI Express Serial Card with 16550 UART

Add a RS-232 serial port to your standard or small form factor computer through a PCI Express expansion slot

$75.99
491+ In stock In stock
CA: 0 | US: 491
In stock Learn More
4 Port Native PCI Express RS232 Serial Adapter Card with 16950 UART
PEX4S952
4 Port Native PCI Express RS232 Serial Adapter Card with 16950 UART

Add four RS232 serial ports to any PC using a single PCI Express expansion slot

$158.99
211+ In stock In stock
CA: 0 | US: 211
In stock Learn More
8-Port USB-to-Serial Adapter Hub
ICUSB23208FD
8-Port USB-to-Serial Adapter Hub

Convert a single USB port into eight serial ports, and connect multiple hubs together for a scalable solution

$352.99
34+ In stock In stock
CA: 0 | US: 34
In stock Learn More