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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 73 Results
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

$41.99
3043+ In stock In stock
CA: 121 | US: 2922
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

$69.99
715+ In stock In stock
CA: 66 | US: 649
In stock Learn More
1 Port Professional USB to Serial Adapter Cable with COM Retention
ICUSB2321X
1 Port Professional USB to Serial Adapter Cable with COM Retention

Add one serial RS-232 port with com retention to any laptop or computer with a USB port

$57.99
1387+ In stock In stock
CA: 68 | US: 1319
In stock Learn More
4 Port Low Profile Native RS232 PCI Express Serial Card with 16950 UART
PEX4S952LP
4 Port Low Profile Native RS232 PCI Express Serial Card with 16950 UART

Add 4 high-speed RS-232 serial ports to your PC through a low profile PCI Express expansion slot

$158.99
161+ In stock In stock
CA: 20 | US: 141
In stock Learn More
16-Port USB-to-Serial Adapter Hub
ICUSB23216FD
16-Port USB-to-Serial Adapter Hub

Convert a USB port into 16 RS232 serial ports in an industrial rack-mountable chassis - and daisy chain multiple hubs for a scalable solution

$585.99
139+ In stock In stock
CA: 4 | US: 135
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

$251.99
141+ In stock In stock
CA: 7 | US: 134
In stock Learn More
4 Port USB to DB9 RS232 Serial Adapter Hub – Industrial DIN Rail and Wall Mountable
ICUSB2324I
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

$151.99
144+ In stock In stock
CA: 8 | US: 136
In stock Learn More
8-Port Industrial USB to RS-232/422/485 Serial Adapter - 15 kV ESD Protection
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

$493.99
108+ In stock In stock
CA: 25 | US: 83
In stock Learn More
4-Port Industrial USB to RS-232/422/485 Serial Adapter - 15 kV ESD Protection
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

$332.99
336+ In stock In stock
CA: 36 | US: 300
In stock Learn More
4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART
PEX4S553
4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART

Add 4 RS-232 serial ports to your standard or small form factor computer through a PCI Express expansion slot

$150.99
318+ In stock In stock
CA: 36 | US: 282
In stock Learn More