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 1–36 of 37 resultsSorted by popularity

2-Port Professional RS-232 USB 2.0 to Serial Adapter 5ft.
Model #: USA-FTDI2X
Rated 5.00 out of 5
$35.06 - $38.95
In stock
USB 2.0 RS-232 Serial Adapter with LED Indicators
Model #: FTDI-LED
Rated 4.92 out of 5
$25.16 - $27.95
In stock
USB to RS-422/485 Converter FTDI CHIP w/ Terminals
Model #: USA-482422
Rated 5.00 out of 5
$35.06 - $38.95
In stock
PRO Single Port USB to Serial Adapter with Activity LED 3ft.
Model #: USA-FTDI-A36
Rated 4.71 out of 5
$25.16 - $27.95
In stock
12in. USB 2.0 RS-232 Serial Adapter FTDI Chip 920K with Tx/Rx LED
Model #: USA-FTDI-A12
Rated 4.89 out of 5
$19.76 - $21.95
In stock
USB to RS-232 Serial Adapter DB9 – 8 Inch Short Cable
Model #: USA-FTDI-8
Rated 5.00 out of 5
$19.76 - $21.95
In stock
4 Port Professional RS-232 USB 2.0 to Serial Adapter
Model #: USA-FTDI4X
Rated 4.85 out of 5
$54.86 - $60.95
Available on backorder
Pro 5ft. USB to RS-422 / RS-485 Converter w/FTDI Chip
Model #: US-485422
Rated 4.79 out of 5
$39.56 - $43.95
In stock
USB-C 2.0 to Serial RS-232 16 Inch Adapter w/ LED Indicators
Model #: GM-FTDI2-LED16-C
Rated 5.00 out of 5
$34.16 - $37.95
Available on backorder
USB 2.0 RS-232 Serial Adapter 16 Inches w/ LED Indicators
Model #: GM-FTDI-LED16
Rated 4.78 out of 5
$24.26 - $26.95
Available on backorder
USB to RS232 Serial Adapter 3ft. Cable
Model #: USA-FTDI-36
Rated 4.86 out of 5
$25.16 - $27.95
In stock
Mini USB to Serial Adapter Hi-Speed 920K FTDI Chip
Model #: SERIAL-B
Rated 4.88 out of 5
$18.86 - $20.95
In stock
2 Port USB to Serial adapter with RX/TX LED Indicators
Model #: GM-FTDI2X-LED
Rated 4.00 out of 5
$40.95 - $43.95
In stock
USB to RS485 | RS422 Optically Isolated Industrial Serial Adapter
Model #: US-422i
$74.66 - $82.95
In stock
USB Serial RS232 Single Port PRO Adapter with Activity LED 3ft
Model #: GM-FTDI2-A36
$27.86 - $30.95
Available on backorder
4 Port Professional RS-232 USB 2.0 to Serial Adapter w/Nuts
Model #: USA-FTDI4X-NUT
$44.99 - $49.99
Out of stock
USB Serial – USB 2.0 RS232 Adapter with LED Indicators
Model #: GM-FTDI2-LED
Rated 4.67 out of 5
$29.66 - $32.95
In stock
USB-C 2.0 to Serial RS-232 Adapter w/ LED Indicators
Model #: GM-FTDI2-LED-C
Rated 5.00 out of 5
$35.06 - $38.95
In stock
Gearmo USB 8 Port Serial RS232 featuring FTDI Chipset with LED Indicators
Model #: GM-FTDI8X-M
$118.76 - $131.95
In stock
4 Port USB To Serial Adapter with RX/TX Indicators
Model #: GM-FTDI4X-LED
Rated 5.00 out of 5
$59.36 - $65.95
In stock
4 Port Serial RS-232 Hub w/ FTDI Chipset & RX/TX LED Indicators
Model #: GM-FTDI4X-M
$89.06 - $98.95
In stock
Industrial RS-232 to RS-422 Converter with Terminal Block
Model #: GM-1005A-B
$25.16 - $27.95
In stock
Gearmo USB 2 Port Serial RS232 featuring FTDI Chipset with LED Indicators
Model #: GM-FTDI2X-M
$54.86 - $60.95
In stock
2 Port USB Type-C To Serial Adapter w/ Per Port Rx / TX Status LED Matrix
Model #: GM-FTDI2XC-LED
$39.56 - $43.95
Available on backorder
RS-232 to RS-485/422 Port-Powered w/Optical Isolation
Model #: GM-10127-B
$35.06 - $38.95
In stock
USB Serial 12 Inch RS232 Serial Adapter FTDI Chip with LED
Model #: GM-FTDI2-A12
$25.16 - $27.95
In stock
DB9 RS-232 5 Bits Optoelectronic Isolated Converter 2,500Vrms
Model #: GM-1015-B
$15.26 - $16.95
In stock
Mini RS-232 to RS-485 Converter
Model #: GM-10211-B
$13.46 - $14.95
In stock
2-Port USB 3.2 Gen 1 Industrial Surface & DIN-Rail Mount Hub w/ Gigabit Ethernet & DB9 Serial FTDI Chipset
Model #: GM-HU32ES
$91.99 - $99.99
In stock
1 Port USB to Serial RS-232 Hub w/ FTDI Chipset & LED Indicators – Rugged Metal Housing Ideal for Mounting
Model #: GM-FTDI1X-M
$35.99 - $39.99
In stock
4 Port USB Type-C To Serial Adapter with Per port LED Rx / TX Indicators
Model #: GM-FTDI4XC-LED
$49.46 - $54.95
In stock
RS-232 to TTL Converter 5V output
Model #: GM-1010-B
$23.36 - $25.95
In stock
Industrial RS-232 to RS-485 Converter
Model #: GM-1004E-B
$19.76 - $21.95
In stock
RS-232 to RS-485/422 Converter with Lightning Surge Protection
Model #: GM-1042E-B
$35.06 - $38.95
In stock
RS-232 Optical Isolated Line Booster 2,500Vrms
Model #: GM-1012-B
$33.26 - $36.95
In stock
RS-232 to RS-485 Converter with Isolation 2,500Vrms
Model #: GM-10017-B
$23.36 - $25.95
In stock