USB to Serial
USB to Serial Adapters supporting RS232, RS422, and RS485 signals from a USB serial interface, lower OS also supported. USBGear offers the USB to serial interface adapters in single or multiple ports and various configurations including cable length, RS232 TTL (terminal block), and style.
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$61.99 As low as: $53.35USB-COMi+ (USB-COMiPLUS) 1-Port RS-232/422/485 USB-to-Serial Adapter features Easy Mode Setting by Hidden DIP Switch Adds one RS-232, RS-422 or RS-485 serial port by connecting to a USB. Learn More -
$219.88 As low as: $206.69Optical isolation and surge protection are available on serial port and is individually optically isolated with 2000 volt DC optical isolation on 8 signal pins, GND is isolated by 5V DC-to-DC converter. The optical isolation protects your computer from spikes and surges. Learn More -
$39.99 As low as: $35.66Supports Windows 10, 8, 7 and Vista (32 and 64-Bit), this USB 2-port Serial Adapter is designed to make serial port expansion quick and simple. Connecting to a USB port on your computer or USB hub. Learn More -
$79.99USB Optical isolation & surge protection Adapter RS-232 USB to RS-232 Adapter provides 1 RS232 Serial Port over USB Port, easy Serial Port Expansion over USB Port. Learn More -
$17.59This USB to RS-232 Serial adapter is Windows 11 supported. This standard USB to RS-232 Serial Adapter unit is compatible with most GPS and PDA devices including Garmin, Magellan, and Palm. Learn More -
$32.95 As low as: $30.97USB to RS232 TTL voltage settings just got easier! Up until now you've had to make a choice between USB to TTL adapters and their voltage with either or selections. This USB to RS232 TTL/CMOS adapter cable eliminates that by allowing you to choose a voltage setting. Learn More -
$389.99 As low as: $359.818 Optically Isolated and Surge Protected serial ports, The USB2-8COMi-SI-TB is a USB 2 to 8-port industrial serial adapter that protects you device(s) with optical Isolation, 15KV ESD protection. Learn More -
$299.95 As low as: $288.118 RS-232/422/485 ports with terminal block connection, the USB2-8COMi-TB is a USB2 to 8-port industrial serial adapter that protects your device(s) with 15KV ESD protection and 600W surge protection. Learn More -
$179.95 As low as: $169.714 optically isolated and surge protected terminal block ports, the USB2-4COMi-TB USB to quad port industrial serial adapter is designed to make RS-422 and RS-485 serial port expansion quick and easy. Learn More -
$239.954 optically isolated and surge protected terminal block ports, The USB2-4COMi-SI-TB is a USB 2 to 4-port industrial serial adapter that protects you device(s) with optical Isolation, 15KV ESD. Learn More
Recent Reviews
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5.0 out of 5 stars
Perfect!.
Just what I needed.
(Review by John) -
5.0 out of 5 stars
works great.
I love the extra length it gives me for my usb cord for my phone.
(Review by Dotty) -
5.0 out of 5 stars
very reliable.
solid connection no noticeable input delay and provides ample power. i have stream deck, mouse
(Review by Marty)