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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.
11 to 20 of 78 Results
2 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART
PEX2S553
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

$52.99
453+ In stock In stock
US: 394 | CA: 59
In stock Learn More
USB to RS232 DB9 Serial Adapter Cable with COM Retention
ICUSB232PRO
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

$27.99
726+ In stock In stock
US: 691 | CA: 35
In stock Learn More
2 Port Low Profile Native RS232 PCI Express Serial Card with 16950 UART
PEX2S952LP
2 Port Low Profile Native RS232 PCI Express Serial Card with 16950 UART

Add 2 RS-232 serial ports to your standard or small form factor computer through a PCI Express expansion slot

$51.99
371+ In stock In stock
US: 352 | CA: 19
In stock Learn More
8 Port Native PCI Express RS232 Serial Adapter Card with 16950 UART
PEX8S952
8 Port Native PCI Express RS232 Serial Adapter Card with 16950 UART

Add 8 RS232 serial ports to your computer via a single PCI Express slot

$216.99
81+ In stock In stock
US: 51 | CA: 30
In stock Learn More
8 Port USB to DB9 RS232 Serial Adapter Hub – Industrial DIN Rail and Wall Mountable
ICUSB2328I
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

$191.99
59+ In stock In stock
US: 26 | CA: 33
In stock Learn More
Low Profile PCI Express Serial Card w/ 16950 UART, Native PCIe Chipset
PEX1S952LP
1 Port Low Profile Native PCI Express Serial Card w/ 16950

Add 1 high-speed serial RS-232 port to any PC with a PCI Express slot

$52.99
16+ In stock In stock
US: 0 | CA: 16
In stock Learn More
USB-C to Serial Adapter
ICUSB232C
USB-C to Serial Adapter

Connect an RS232 (DB9) peripheral to your USB-C device

$29.99
3334+ In stock In stock
US: 2812 | CA: 522
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

$64.99
780+ In stock In stock
US: 750 | CA: 30
In stock Learn More
4-Port Industrial USB to RS-232/422/485 Serial Adapter - 15 kV ESD Protection
New
ICUSB234854I
4-Port Industrial USB to RS-232/422/485 Serial Adapter - 15 kV ESD Protection

Add four ports supporting three serial protocols, to easily connect serial devices to your computer through USB, with 15kV ESD protection

$253.99
192+ In stock In stock
US: 168 | CA: 24
In stock Learn More
8-Port Industrial USB to RS-232/422/485 Serial Adapter - 15 kV ESD Protection
New
ICUSB234858I
8-Port Industrial USB to RS-232/422/485 Serial Adapter - 15 kV ESD Protection

Add eight ports supporting three serial protocols, to easily connect serial devices to your computer through USB, with 15kV ESD protection

$376.99
104+ In stock In stock
US: 88 | CA: 16
In stock Learn More