Home Add-on Cards & Peripherals Serial Cards & Adapters

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.
51 to 60 of 64 Results
4 Port RS232 PCI Express Serial Card w/ Breakout Cable
PEX4S553B
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

$159.99
450+ In stock In stock
CA: 26 | US: 424
In stock Learn More
4 Port RS232 PCI Serial Card Adapter with Power Output
PCI4S954PW
4 Port RS232 PCI Serial Card Adapter with Power Output

Add 4 RS232 serial ports with 5V or 12V selectable power output to your computer, through a PCI slot

$162.99
2 Port RS232/422/485 PCI Serial Adapter Card w/ ESD Protection
PCI2S232485I
2 Port RS232/422/485 PCI Serial Adapter Card w/ ESD Protection

Control and communicate with two serial devices even with mixed RS-232 & 485 protocols

$165.99
30+ In stock In stock
CA: 3 | US: 27
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
155+ In stock In stock
CA: 7 | US: 148
In stock Learn More
Metal Industrial USB to RS422/RS485 Serial Adapter w/ Isolation
ICUSB422IS
1 Port Metal Industrial USB to RS422/RS485 Serial Adapter w/ Isolation

Add an R422/485 serial port to your laptop or desktop computer through USB

$171.99
86+ In stock In stock
CA: 17 | US: 69
In stock Learn More
4 Port PCI Express PCIe Serial Combo Card - 2 x RS232 2 x RS422 / RS485
PEX4S232485
4 Port PCI Express PCIe Serial Combo Card - 2 x RS232 2 x RS422 / RS485

Add two RS232, and two RS422/485 serial ports to your PC through a PCI-Express expansion slot

$205.99
155+ In stock In stock
CA: 10 | US: 145
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
164+ In stock In stock
CA: 28 | US: 136
In stock Learn More
8-Port PCI Express Serial Card with 16C1050 UART
PEX8S1050LP
8-Port PCI Express Serial Card with 16C1050 UART

Low Profile Serial Card | Full Profile Brackets Incl | 921.4Kbps | Windows® and Linux®

$280.99
51+ In stock In stock
CA: 12 | US: 39
In stock Learn More
8 Port USB to RS232 Serial DB9 Adapter Hub
ICUSB2328
8 Port USB to RS232 Serial DB9 Adapter Hub

Add eight RS232 serial ports to any notebook or desktop computer using a single USB port

$282.99
44+ In stock In stock
CA: 6 | US: 38
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
145+ In stock In stock
CA: 30 | US: 115
In stock Learn More