USB to Serial Adapters

Gearmo provides USB to Serial COM port adapters for RS232 | RS422 | RS485 protocols. Our USB to serial adapters cover all the bases from mini serial adapters, serial cable adapters, and metal USB serial adapters that are mountable. Looking for USB serial adapters with LED indicators? We offer many adapters that show TX and RX signals and more for diagnostics and activity.

Showing 1–12 of 37 resultsSorted by popularity

2-Port Professional RS-232 USB 2.0 to Serial Adapter 5ft.
Rated 5.00 out of 5
$40.99
In stock
5ft. USB 2.0 RS-232 Serial Adapter with LED Indicators
Rated 4.88 out of 5
$29.29
In stock
USB to RS-422/485 Converter FTDI CHIP w/ Terminals
Rated 5.00 out of 5
$40.29
In stock
4 Port Professional RS-232 USB 2.0 to Serial Adapter
Rated 4.85 out of 5
$63.99
In stock
PRO Single Port USB to Serial Adapter with Activity LED 3ft.
Rated 4.71 out of 5
$28.99
In stock
12in. USB 2.0 RS-232 Serial Adapter FTDI Chip 920K with Tx/Rx LED
Rated 4.89 out of 5
$22.99
In stock
USB to RS-232 Serial Adapter DB9 – 8 Inch Short Cable
Rated 5.00 out of 5
$22.99
In stock
Pro 5ft. USB to RS-422 / RS-485 Converter w/FTDI Chip
Rated 4.79 out of 5
$45.29
In stock
USB-C 2.0 to Serial RS-232 16 Inch Adapter w/ LED Indicators
Rated 5.00 out of 5
$39.29
In stock
USB 2.0 RS-232 Serial Adapter 16 Inches w/ LED Indicators
Rated 4.78 out of 5
$28.29
In stock
USB to RS232 Serial Adapter 3ft. Cable
Rated 4.86 out of 5
$28.99
In stock
Mini USB to Serial Adapter Hi-Speed 920K FTDI Chip
Rated 4.88 out of 5
$21.99
Available on backorder