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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.
1 to 10 of 63 Results
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®

$296.99
55+ In stock In stock
CA: 9 | US: 46
In stock Learn More
4-Port PCI Express RS232 Serial Adapter Card - 16950 UART - 256-byte FIFO Cache - ASIX AX99100 - Low Profile Bracket - Replacement for PEX4S952LP (PEX4S953LP)
$168.99
164+ In stock In stock
CA: 7 | US: 157
In stock Learn More
4-Port PCI Express RS232 Serial Adapter Card - 16950 UART - 256-byte FIFO Cache - ASIX AX99100 - Full Profile Bracket - Replacement for PEX4S952
$168.99
470+ In stock In stock
CA: 77 | US: 393
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

$168.99
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

$169.99
14+ In stock In stock
CA: 14 | US: 0
In stock
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

$159.99
190+ In stock In stock
CA: 2 | US: 188
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

$217.99
30+ In stock In stock
CA: 2 | US: 28
In stock Learn More
2-Port RS232 Serial Adapter Card with 16950 UART
PEX2S953LP
2-Port RS232 Serial Adapter Card with 16950 UART

PCI Express to Serial Adapter | 921.4Kbps | Windows® and Linux® Compatible

$87.99
2572+ In stock In stock
CA: 87 | US: 2485
In stock Learn More
2-Port PCI Express RS232 Serial Adapter Card - 16950 UART - 256-byte FIFO Cache - ASIX AX99100 - Full Profile Bracket - Replacement for PEX2S952 (PEX2S953)
$87.99
2688+ In stock In stock
CA: 373 | US: 2315
In stock Learn More
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

$73.99
701+ In stock In stock
CA: 20 | US: 681
In stock Learn More
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