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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 65 of 65 Results
RS232 to TTL Serial Converter - DB9, F/M
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)

$47.99
Industrial RS232 to RS422/485 Serial Port Converter with 15KV ESD Protection
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

$92.99
97+ In stock In stock
US: 76 | CA: 21
In stock Learn More
2 Port Native ExpressCard RS232 Serial Adapter Card with 16950 UART
EC2S952
2 Port Native ExpressCard RS232 Serial Adapter Card with 16950 UART

Add 2 high-speed RS-232 Serial ports to your notebook computer via an ExpressCard slot

$87.99
1 Port Native ExpressCard RS232 Serial Adapter Card with 16950 UART
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

$71.99
75+ In stock In stock
US: 51 | CA: 24
In stock Learn More
1 Port ExpressCard to RS232 DB9 Serial Adapter Card w/ 16950 - USB Based
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

$47.99
100+ In stock In stock
US: 74 | CA: 26
In stock Learn More