Viofo HK4 Hardwire Power Cable USB C with 8pcs Fuse Set A229 Series Dash Cam
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The Viofo HK4 Hardwire Power Cable with 8-Piece Fuse Set is a 4m USB Type-C hardwire kit for the Viofo A229 series and other compatible dash cams, powering the camera directly from the vehicle's fuse box with ACC parking mode switching and four selectable voltage cut-off options.
This listing includes the HK4 cable and the 8-piece fuse set. The HK4 is also available as cable only.
Key specifications
- Connector: USB Type-C
- Input voltage: 12V–24V
- Maximum output: 5V 2A
- Cable length: 4m (13.1ft)
- Battery protection: 4 selectable voltage cut-off options
- Parking mode: ACC detection with automatic switching
- In the box: HK4 cable and 8-piece fuse set
- Compatible models: A119 Mini, A229, A229 Duo, A329, T130 2CH, T130 3CH, WM1
HK4 Series Hardwire Cable + 8pcs Fuse Set
Seamless Parking Mode Switching
- Supports 12V and 24V electrical systems
- 4 selectable voltage cut-off options to prevent battery drain
- ACC detection automatically switches the dash cam into parking mode
- Provides a constant power supply via the vehicle's fuse box
With ACC detection, the dash cam enters parking mode when the engine is switched off and resumes normal recording once the vehicle is started. Power is supplied via the fuse box (VCC, ACC, GND), removing the need for a cigarette lighter adaptor.
Battery Discharge Prevention
The HK4 supplies continuous power in parking mode until the vehicle's battery voltage drops to the configured threshold, at which point it cuts power to the dash cam to protect the battery.
Configurable Voltage Cut-off
Four voltage cut-off thresholds are available. When the battery voltage drops to the selected level, the HK4 stops supplying power to the dash cam, preventing excessive battery discharge.
12V / 24V Compatible
The HK4 connects directly to cars, vans, trucks, SUVs and buses, accepting input from any vehicle running on 12–24V.
Cable Connection
Compatible with Viofo dash cams using a USB Type-C power input. Connect the HK4 to the GPS power port only.
Explore the full range in Viofo Hardwire Kits.
Specification
| Maximum output | 5V 2A |
|---|---|
| Input | 12V - 24V |
| Cable length | 4 metres / 13.1 feet |
More specs
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What's Included
- Viofo HK4 Hardwire Cable
- 8PCS Full Set Fuse
Viofo
About the Viofo HK4-8PCS
From our tech experts at CEN
A hardwire kit is what turns a dash cam into a parking camera. It draws a permanent feed from the fuse box, keeps the 12V socket free, and includes a voltage cutoff that shuts the camera down before your battery is affected.
Who it suits
A229 Plus, A229 Pro, A229 Ultra and A119 Mini 2 owners who want parking mode. This is the correct kit for the A229 series, supplied with the fuse taps needed for most UK fuse boxes.
Our tech experts advise
Set the cutoff voltage to suit your car and driving pattern: a car used daily copes with a lower threshold than one parked for a week. If you would rather not take the trim off and probe the fuse box yourself, we fit hardwire kits at our Beeston workshop alongside a camera install. See dash cam installation.
Explore the full Viofo range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all Viofo
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Frequently Asked Questions
Q: Is this accessory compatible with my dash cam?
A: Dash cam accessories are generally model-specific. The compatible camera models are listed in the product description, and you can contact CEN to confirm compatibility before ordering.
Q: What does a hardwire kit do?
A: A hardwire kit powers your dash cam directly from the vehicle's fusebox, hiding the cable and enabling parking mode. Kits include battery protection so your car battery is never drained below a safe level.
Q: Why would I add a dash cam battery pack?
A: A battery pack powers parking mode for longer periods without drawing on your car battery at all. It charges while you drive and is the recommended option for extended parking protection.
Q: Can CEN fit this accessory?
A: Yes. CEN offers professional dash cam and accessory installation from our Nottingham premises. Contact us to book.
Q: Which dash cams does the VIOFO HK4 work with?
A: The HK4 is a USB Type-C hardwire cable. The compatible VIOFO models listed for it are the A119 Mini, A229, A229 Duo, A329, T130 2CH, T130 3CH and WM1.
Q: Will the HK4 drain my car battery?
A: The HK4 has 4 voltage cut-off options. When the battery voltage drops to the threshold you select, it stops powering the dash cam to help prevent battery discharge.
Q: Does the HK4 work in 24V vehicles?
A: Yes. The HK4 accepts a 12V to 24V input, so it suits cars, SUVs, trucks and buses, and outputs up to 5V 2A to the dash cam.
Q: What's in the box?
A: The VIOFO HK4 hardwire cable and an 8-piece full set of fuses.
