VIOFO HK3-C ACC Hardwire Parking Mode Kit | USB-C for A139 2CH/3CH Dash Cams

VIOFO A139 HK3-C ACC Hardwire Kit | Direct-Wire for Parking Mode

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The VIOFO hardwire kit is suitable for most cars and trucks (accepts input voltages of 12-24V). Free up your cigarette lighter power outlet for another device such as your cell phone or USB charger.

VIOFO's hardwire kit will enable parking mode safely: the kit will automatic power off when your car/truck battery voltage is detected to be too low, this will prevent your vehicle battery from dying. The low voltage cutoff threshold is adjustable in 4 increments from 11.8 to 12.4v DC (12v systems) or 23.6 to 24.8v DC (24v systems).

This hardwire kit can be used by almost all USB-C devices like dash cams, GPS navigation devices, radar detectors etc.

Brand new OEM (original) equipment from VIOFO.


  • Output Connector: USB-C
  • Input Voltage: 12V-24V
  • Output Voltage: 5V
  • Output Current: 2.0A
  • Working Temperature: -40 - 80°C
  • Cable Length: 15ft (4m)
  • Low Voltage Protection Threshold: 11.8V or 23.6V (adjustable)

Recommended for use with

NOT Compatible with

For VIOFO A129 models, please use VIOFO-HK3 (mini USB) Hardwire Kit instead.

The Dashcam Store™ is an authorized distributor for VIOFO dashcams and accessories in the United States.