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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.
31 to 40 of 73 Results
2 Port PCI Low Profile RS232 Serial Adapter Card with 16550 UART
PCI2S550_LP
2 Port PCI Low Profile RS232 Serial Adapter Card with 16550 UART

Add 2 high-speed RS-232 serial ports to your low profile/small form factor computer with a PCI expansion slot

$48.99
477+ In stock In stock
US: 444 | CA: 33
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
349+ In stock In stock
US: 328 | CA: 21
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
368+ In stock In stock
US: 339 | CA: 29
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

$130.99
152+ In stock In stock
US: 129 | CA: 23
In stock Learn More
4 Port PCI RS232 Serial Adapter Card with 16550 UART
PCI4S550N
4 Port PCI RS232 Serial Adapter Card with 16550 UART

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

$70.99
241+ In stock In stock
US: 230 | CA: 11
In stock Learn More
8-Port USB-to-Serial Adapter Hub
ICUSB23208FD
8-Port USB-to-Serial Adapter Hub

Convert a single USB port into eight serial ports, and connect multiple hubs together for a scalable solution

$268.99
69+ In stock In stock
US: 58 | CA: 11
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

$51.99
300+ In stock In stock
US: 286 | CA: 14
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

$117.99
104+ In stock In stock
US: 100 | CA: 4
In stock Learn More
8 Port PCI Express Low Profile Serial Adapter Card
PEX8S950LP
8 Port PCI Express Low Profile Serial Adapter Card

Add 8 RS-232 serial ports to your computer via a single low profile PCI Express slot

$213.99
46+ In stock In stock
US: 45 | 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
96+ In stock In stock
US: 96 | CA: 0
In stock