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Black USB-to-DB9 serial adapter with LED indicators and 5ft cable

Gearmo FTDI-LED USB to RS-232 Serial Adapter with LED Indicators, 5ft Cable

SKU CH-MA6N-RJKGP

Connects legacy DB-9 serial devices to modern USB computers with a 5 ft cable and built-in LED signal indicators for easy testing

  • Product colorBlack
  • Product dimensions2.3876 in × 11.7094 in × 17.399 in
  • Product weight0.17 lb (0.08 kg)
  • Connect legacy DB-9 serial gear to USB computers with 5ft cable
  • Dual-colour LED indicators show live RS-232 signal status for quick testing
  • FTDI chipset works with Windows 7 through 11, Linux and macOS 10.X
  • Compact 5.5 x 3.5 x .6 in adapter weighs only .17 lb
  • US-based Gearmo engineering support offers CAD files and datasheets on request

Legacy serial connectivity

This USB to RS-232 adapter bridges modern computers and legacy DB-9 serial equipment using a 5ft cable. The FTDI chipset provides reliable communication for industrial, laboratory and point-of-sale environments where older devices remain in service.

LED signal testing

Dual-colour LED indicators give immediate visual feedback on transmit and receive lines so technicians can verify link integrity without extra tools. The built-in tester reduces troubleshooting time when commissioning or maintaining serial installations.

Compact USB-A form factor

A moulded black housing measuring 5.5 by 3.5 by .6 inches weighs .17 lb and draws power directly from the USB port. The single DB-9 male connector and fixed 5ft cable suit bench-top or rackmount use where a permanent, low-profile link is preferred.

How it compares

Measured against everything we stock in Serial & Protocol Converters, at today’s prices. Recalculated every night.

Price $52.99
Pricier than about 76% of the 121 comparable items (median $19.99).

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Specifications

Product
Brand nameGearmo
Model nameFTDI-LED
Part numberFTDI-LED
Product colorBlack
Size & build
Product dimensions2.3876 in × 11.7094 in × 17.399 in
Product weight0.17 lb (0.08 kg)

Questions about this item

How long is the cable before I need to extend or replace it?

The adapter comes with a fixed 5 ft cable; if the run exceeds that length you will need a separate extension or a longer replacement cable.

What throughput ceiling appears first when the adapter runs continuously?

The single DB-9 port is limited to the RS-232 electrical specification, so the serial signalling rate caps the sustained data flow before the USB link does.

Does the adapter generate noticeable heat or fan noise during all-day operation?

The unit draws power from the USB 5 V supply, has no fan and only the LED indicators active, so it stays cool and silent even with continuous use.

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