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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.
61 to 70 of 73 Results
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
82+ In stock In stock
CA: 17 | US: 65
In stock Learn More
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

$180.99
45+ In stock In stock
CA: 3 | US: 42
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
86+ In stock In stock
CA: 12 | US: 74
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
277+ In stock In stock
CA: 0 | US: 277
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

$280.99
3+ In stock In stock
CA: 3 | US: 0
In stock
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
140+ In stock In stock
CA: 14 | US: 126
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
97+ In stock In stock
CA: 6 | US: 91
In stock Learn More
8 Port Native PCI Express RS232 Serial Adapter Card with 16950 UART
PEX8S952
8 Port Native PCI Express RS232 Serial Adapter Card with 16950 UART

Add 8 RS232 serial ports to your computer via a single PCI Express slot

$284.99
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
173+ In stock In stock
CA: 0 | US: 173
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

$352.99
60+ In stock In stock
CA: 16 | US: 44
In stock Learn More