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Black USB-C to DB9 serial adapter with 25 cm cable and LED indicators

USBGear

USBGear USBG-232-C USB-C to Serial FTDI Adapter Black 25 cm

SKU CH-HR16-YP52K

Adds an RS-232 serial port to a USB-C device using an FTDI chip with full modem control, LED TxD/RxD indicators and 25 cm cable

  • Adapter typeUSB to DB9 (RS-232)
  • Product colorBlack
  • Full RS-232 modem control and flow control for reliable industrial links
  • USB-C powered, no external adapter needed for portable convenience
  • 25 cm cable keeps workspace tidy and reduces clutter
  • LED TxD/RxD indicators give instant port monitoring and diagnostics
  • Up to 921.6K bps baud rate with non-standard speeds supported

USB-C to DB9 serial adapter for legacy gear

This USBGear USBG-232-C adapter adds a single RS-232 serial port to any computer with a USB-C socket. It targets engineers, technicians and hobbyists who must talk to industrial controllers, networking gear or scientific instruments that still use a DE-9 connector. The FTDI chipset ensures broad driver support on Windows 10, 8, 7 and Vista without hunting for third-party downloads. Buyers who need multiple simultaneous ports or a USB-A host connection should look elsewhere.

Plug-and-play install with short fixed cable

The 25 cm cable is permanently attached, so there is no separate cable to lose or mis-seat. Windows recognises the device as a standard COM port once the Microsoft-certified FTDI driver loads automatically. The only common snag is forgetting to match the baud rate, parity and flow-control settings in the terminal software to the target equipment. LED indicators for TxD and RxD give immediate visual feedback when data moves.

Check host port and OS before ordering

Verify that your machine has a free USB-C port; the adapter will not fit USB-A without a separate passive gender changer, which is not included. Confirm the operating system is Windows 10, 8, 7 or Vista — other platforms are not covered by the supplied driver. Ensure the serial device uses standard RS-232 voltage levels and a DE-9 pin-out; TTL or proprietary pin assignments will not work. The 30 day guarantee covers functional defects only.

How it compares

Measured against everything we stock in USB Adapter Cables & Dongles, at today’s prices. Recalculated every night.

Price $20.99
Pricier than about 73% of the 1,430 comparable items (median $14.99).

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Specifications

Product
Brand nameUSBGear
Model nameUSBG-232-C
Product colorBlack
Adapter typeUSB to DB9 (RS-232)

Questions about this item

How do I confirm the USBG-232-C is communicating after plugging it in?

The adapter shows two LEDs labelled TxD and RxD; both flash when data moves across the serial link, giving immediate visual proof the port is active.

What comes with the USBG-232-C and what must I source separately?

The box contains the black USB-C to DB9 cable assembly with a 25 cm lead and the FTDI chip inside; no external power supply is needed, and Windows drivers install automatically.

Which version of the USBG-232-C should I choose for a modern laptop?

The single model USBG-232-C adds one RS-232 port via USB-C, supports baud rates up to 921.6K bps, and is validated for Windows 10, 8 and 7.

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