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.

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EC1S232U2

1 Port ExpressCard to RS232 DB9 Serial Adapter Card w/ 16950 - USB Based

Add a USB-based RS232 Serial port to your laptop through an ExpressCard slot

Your price
$47.99USD

In stock: US: 21 | CA: 1

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EC1S952

1 Port Native ExpressCard RS232 Serial Adapter Card with 16950 UART

Add a high-speed RS-232 Serial port to your laptop computer via an ExpressCard expansion slot

Your price
$71.99USD

In stock: US: 0 | CA: 22

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IC232485S

Industrial RS232 to RS422/485 Serial Port Converter with 15KV ESD Protection

Convert an RS232 data signal to either RS485 or RS422 with this wall-mountable, ESD-protected adapter

Your price
$92.99USD

In stock: US: 78 | CA: 35

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IC232TTL

RS232 to TTL Serial Converter - DB9, F/M

Easily convert an RS232 serial signal (-12 to +12V) to a transistor-transistor logic signal (0 to +5V)

Your price
$47.99USD

Check reseller availability

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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

Your price
$268.99USD

In stock: US: 14 | CA: 16

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ICUSB23216FD

16-Port USB-to-Serial Adapter Hub

Convert a USB port into 16 RS232 serial ports in an industrial rack-mountable chassis - and daisy chain multiple hubs for a scalable solution

Your price
$446.99USD

In stock: US: 78 | CA: 14

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ICUSB2321F

1 Port FTDI USB to Serial RS232 Adapter Cable with COM Retention

Add an RS232 serial port with COM retention to your laptop or desktop computer through USB

Your price
$30.99USD

In stock: US: 997 | CA: 136

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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

Your price
$117.99USD

In stock: US: 41 | CA: 16

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ICUSB2321X

1 Port Professional USB to Serial Adapter Cable with COM Retention

Add one serial RS-232 port with com retention to any laptop or computer with a USB port

Your price
$43.99USD

In stock: US: 1285 | CA: 80

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ICUSB2322F

2 Port FTDI USB to Serial RS232 Adapter Cable with COM Retention

Add two RS232 serial ports with COM retention to your laptop or desktop computer through USB

Your price
$66.99USD

In stock: US: 122 | CA: 45

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