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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.
51 to 60 of 73 Results
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

$123.99
16-Port Low-Profile Serial Card - RS232 - PCI Express
PEX16S550LP
16-Port Low-Profile Serial Card - RS232 - PCI Express

Add 16 RS232 serial ports (DB9) to your low or full-profile computer, through a PCI Express slot

$314.99
10+ In stock In stock
US: 9 | CA: 1
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
2+ In stock In stock
US: 0 | CA: 2
In stock Learn More
Low Profile PCI Express Serial Card (RS232) (16550 UART, Native PCIe Chipset)
PEX1S553LP
1 Port Low Profile Native RS232 PCI Express Serial Card with 16550 UART

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

$57.99
585+ In stock In stock
US: 446 | CA: 139
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

$55.99
1-Port RS232 Serial Adapter Card with 16950 UART
PEX1S953LP
1-Port RS232 Serial Adapter Card with 16950 UART

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

$58.99
3227+ In stock In stock
US: 3066 | CA: 161
In stock Learn More
2-Port PCI Express Serial Card with 16C1050 UART - RS232
PEX2S1050
2-Port PCI Express Serial Card with 16C1050 UART - RS232

Add two high performance RS232 serial ports (DB9) to your low or full-profile computer, through a PCI Express slot

$59.99
23+ In stock In stock
US: 0 | CA: 23
In stock Learn More
2S1P PCI Express Serial Parallel Combo Card with Breakout Cable
PEX2S1P553B
2S1P PCI Express Serial Parallel Combo Card with Breakout Cable

Add a parallel port and two RS-232 serial ports to your PC through a PCI-Express expansion slot

$49.99
54+ In stock In stock
US: 0 | CA: 54
In stock Learn More
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

$55.99
234+ In stock In stock
US: 160 | CA: 74
In stock Learn More
2S1P Native PCI Express Parallel Serial Combo Card with 16550 UART
PEX2S5531P
2S1P Native PCI Express Parallel Serial Combo Card with 16550 UART

Add 1 parallel port and 2 RS-232 serial ports to your standard or low-profile computer through a PCI Express expansion slot

$49.99
41+ In stock In stock
US: 33 | CA: 8
In stock Learn More