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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.
21 to 30 of 73 Results
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
152+ In stock In stock
US: 99 | CA: 53
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

$25.99
2224+ In stock In stock
US: 2199 | CA: 25
In stock Learn More
2 Port USB to RS232 Serial DB9 Adapter Cable
ICUSB232C2
2 Port USB to RS232 Serial DB9 Adapter Cable

Add 2 serial RS-232 ports to any laptop or computer with a USB port

$47.99
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

$17.99
63+ In stock In stock
US: 63 | CA: 0
In stock
USB to RS232 DB9/DB25 Serial Adapter Cable - M/M
ICUSB232DB25
USB to RS232 DB9/DB25 Serial Adapter Cable - M/M

Add an RS232 serial port to a notebook or desktop computer with this Plug-and Play USB adapter cable

$20.99
164+ In stock In stock
US: 0 | CA: 164
In stock Learn More
FTDI USB to Serial Null Modem DCE Adapter Cable
ICUSB232FTN
1 Port USB to Null Modem RS232 DB9 Serial DCE Adapter Cable with FTDI

Add a Null Modem RS232 serial port to your laptop or desktop computer through USB

$33.99
1386+ In stock In stock
US: 1366 | CA: 20
In stock Learn More
24in Internal USB Motherboard Header to Serial RS232 Adapter
ICUSB232INT1
24in Internal USB Motherboard Header to Serial RS232 Adapter

Add an RS232 serial port to any system with an available USB motherboard header

$32.99
563+ In stock In stock
US: 555 | CA: 8
In stock Learn More
24in Internal USB Motherboard Header to 2 Port Serial RS232 Adapter
ICUSB232INT2
24in Internal USB Motherboard Header to 2 Port Serial RS232 Adapter

Add two RS232 serial ports to any system with an available USB motherboard header

$66.99
245+ In stock In stock
US: 98 | CA: 147
In stock Learn More
1 Port Industrial USB to RS232 Serial Adapter with 5KV Isolation and 15KV ESD Protection
ICUSB232IS
1 Port Industrial USB to RS232 Serial Adapter with 5KV Isolation and 15KV ESD Protection

Add a galvanically isolated RS232 serial port with ESD protection through a USB port - DIN Rail Mountable

$92.99
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

$28.99
383+ In stock In stock
US: 383 | CA: 0
In stock