USB to Serial

USB C to SerialGearmo 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 1–9 of 24 results

  • 12 Inch USB to RS232 Serial Adapter FTDI Chip 920K with LED - GM-FTDI-A12

    12 Inch USB to RS232 Serial Adapter FTDI Chip 920K with LED

    Rated 4.88 out of 5
    $19.95
  • 2-Port USB 2.0 to RS232 converter cable

    2 Port Pro USB 2.0 to Serial Converter, TX/RX LED COM Retention

    Rated 5.00 out of 5
    $34.95
  • 3.3V TTL-232R Serial UART Cable 6FT with 3.5mm Audio Jack

    3.3V TTL-232R Serial UART Cable 6FT with 3.5mm Audio Jack

    $24.95
  • 4 Port USB to RS232 Serial Adapter Metal Chassis

    4 Port USB to Serial DB9 Industrial RS232 Adapter 15KV ESD and Surge

    $129.95
  • USB TTL-232R 5V Serial UART with Audio Jack

    5V TTL-232R Serial UART Cable 6FT with 3.5mm Audio Jack

    $24.95
  • USB to Serial 8 port metal serial adapter

    8 Port USB to Serial DB9 Industrial RS232 Adapter 15KV ESD and Surge

    $149.95
  • Mini USB to Serial Adapter Hi-Speed 920K FTDI Chip

    Rated 4.83 out of 5
    $18.95
  • Serial to USB Cable

    Pro 5ft. USB to RS485-RS422 Converter with FTDI Chip

    Rated 4.73 out of 5
    $39.95
  • PRO Single Port USB to Serial Adapter with Activity LED 3ft

    Rated 4.75 out of 5
    $24.95