The VIOFO 4PCS × 2 Packs Circuit Fuse Tap with ATO, Mini, Micro2, Mini Low Profile Adapter Holder is an automotive fuse-tap accessory designed to connect compatible VIOFO hardwire kits directly to a vehicle’s fuse box. Rather than relying on the vehicle’s cigarette-lighter or accessory power socket, the fuse-tap approach provides a cleaner installation path for a dash camera and allows the original 12 V/24 V vehicle electrical system to supply power through an appropriately selected fuse position.
According to VIOFO’s current product information, this version contains two packs of four circuit fuse taps, for a total of eight fuse taps. The supplied selection covers ATO, Mini, Micro2, Micro3, and Low-Profile Mini fuse types, making the package suitable for multiple vehicles or for installers who need spare adapters.
The accessory is particularly relevant to dash-camera installations using VIOFO hardwire kits. VIOFO states that the fuse taps are used together with a hardwire kit sold separately and that the fuse taps themselves do not power a camera.
A typical hardwire installation uses the vehicle fuse box to obtain the required power connections. Depending on the hardwire kit, the installation can provide constant battery power and an ACC-switched signal, while the hardwire cable manages the dash camera’s operating and parking-mode behavior. VIOFO’s hardwire documentation describes the connection in terms of VCC, ACC, and GND, with ACC detection allowing compatible dash cameras to switch between normal recording and parking mode.
The primary value of the VIOFO 8-piece kit is therefore compatibility and installation flexibility. Instead of purchasing separate fuse taps for different vehicles, an installer can keep several common fuse formats available in one package.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Automotive Circuit Fuse Tap Kit |
| Brand | VIOFO |
| Configuration | 4PCS × 2 Packs |
| Total Fuse Taps | 8 pieces |
| Intended Application | Vehicle fuse-box hardwiring |
| Primary Equipment | VIOFO hardwire kits / dash cameras |
| Supported Fuse Types | ATO, Mini, Micro2, Micro3, Low-Profile Mini |
| ATO Compatibility | Yes |
| Mini / ATS Compatibility | Yes |
| Micro2 Compatibility | Yes |
| Micro3 Compatibility | Yes |
| Mini Low-Profile Compatibility | Yes |
| Installation Location | Vehicle fuse box |
| Hardwire Kit | Required; sold separately |
| Cigarette-Lighter Socket | Not required when hardwired |
| Typical Vehicle System Context | 12 V / 24 V automotive electrical systems |
| Package Configuration | Two 4-piece packs |
| Total Quantity | 8 fuse taps |
| Main Purpose | Add a protected accessory circuit through an existing fuse position |
| Manufacturer Warning | Confirm vehicle fuse type before installation |
VIOFO’s official listing identifies the product as an 8-piece kit containing two four-piece packs and explicitly lists ATO, Mini, Micro2, Micro3, and Low-Profile Mini coverage.
One important specification limitation should be highlighted: VIOFO’s current product page does not publish a universal maximum current rating, wire gauge, contact resistance, dimensional drawing, or individual fuse-tap electrical-rating table for this accessory. Therefore, those values should not be inferred or presented as guaranteed specifications.
The actual fuse rating used during installation should be determined by the vehicle circuit, original fuse specification, hardwire kit requirements, and the installation instructions—not simply by the physical capacity of the fuse tap.
Key Features
Eight Fuse Taps in One Package
The package contains eight total circuit fuse taps, arranged as 4 pieces × 2 packs. This is substantially more suitable for installers, multi-vehicle households, workshops, and users who want replacement parts available than a two-piece kit.
For a professional installer, having multiple fuse types immediately available can reduce interruptions caused by discovering that a customer’s vehicle uses a different fuse format.
Broad Fuse-Type Coverage
The kit covers five important automotive fuse formats:
- ATO
- Mini
- Micro2
- Micro3
- Low-Profile Mini
This broad selection is one of the defining characteristics of the product. VIOFO describes it as coverage for common fuse types and specifically recommends confirming the vehicle’s fuse type before installation.
This is especially useful because fuse-box architecture varies considerably between vehicle manufacturers and model generations.
Designed for VIOFO Hardwire Installation
The fuse tap is not intended to operate as a standalone power supply. Its function is to provide a convenient connection between the vehicle fuse box and a compatible hardwire cable.
VIOFO explicitly states that the fuse taps are used together with a VIOFO hardwire kit, sold separately, and that the fuse tap alone does not power the camera.
This distinction is important when specifying the complete installation. A typical system therefore consists of:
Vehicle fuse box → Fuse tap → VIOFO hardwire kit → Dash camera
Frees the Vehicle Accessory Socket
A hardwired dash camera does not have to occupy the vehicle’s cigarette-lighter or 12 V accessory socket. VIOFO specifically identifies freeing the cigarette socket for other devices as one of the advantages of this installation method.
This is particularly useful for drivers who need the socket for a phone charger, portable navigation device, radar detector, or another accessory.
Suitable for Multi-Vehicle Installations
Because the package contains multiple fuse types, one kit can be retained as an installation inventory rather than being dedicated to one vehicle.
The manufacturer specifically identifies professional installers and households with multiple vehicles as target applications.
Application Scenarios
Dash Camera Permanent Installation
The primary application is permanent installation of a VIOFO dash camera.
Instead of routing a power cable to the cigarette-lighter socket, the installer can connect the compatible VIOFO hardwire kit to the fuse box. The resulting installation can conceal much of the power wiring behind interior trim.
For compatible systems, the hardwire kit can also support parking-mode operation. VIOFO explains that ACC detection allows the dash camera to enter parking mode when the vehicle is turned off and return to normal recording when the vehicle is started.
Professional Dash-Cam Installation
The eight-piece configuration is particularly appropriate for automotive electronics installers.
A workshop may encounter several vehicles in one day, each using a different fuse format. Keeping ATO, Mini, Micro2, Micro3, and Low-Profile Mini fuse taps in inventory provides greater flexibility than carrying only one fuse-tap type.
Multiple-Vehicle Households
For households with several cars, the kit provides a convenient way to maintain spare fuse taps for different vehicles.
One vehicle may use a Mini fuse while another may use Micro2 or Low-Profile Mini. The multi-format configuration reduces the need to purchase another adapter whenever a different vehicle is equipped with a different fuse style.
Replacement and Spare Parts
Fuse taps can also be useful as replacement components during maintenance or when a previous installation needs to be moved to another vehicle.
Because this product contains eight pieces rather than two, unused adapters can be retained as spares.
Vehicle Electronics Projects
Although VIOFO positions this accessory primarily around dash-camera hardwire installations, fuse taps can generally serve as an interface between an appropriately designed accessory circuit and a compatible automotive fuse box.
However, the electrical characteristics of the connected equipment must be verified independently. The presence of a fuse tap does not automatically make an arbitrary accessory suitable for a particular vehicle circuit.
Installation Considerations
Correct fuse identification is the most important part of using this product.
VIOFO explicitly recommends confirming the vehicle’s fuse type using the vehicle documentation or professional assistance before installation.
A typical installation process involves:
- Identify the vehicle’s fuse-box location.
- Determine whether the required fuse is ATO, Mini, Micro2, Micro3, or Low-Profile Mini.
- Identify an appropriate constant-power and/or ACC-switched fuse position according to the hardwire kit instructions.
- Remove the selected fuse using an appropriate fuse puller.
- Install the original fuse into the corresponding position of the fuse tap as specified by the installation method.
- Connect the hardwire cable to the fuse tap.
- Install the fuse tap securely in the fuse box.
- Connect the hardwire kit ground wire to a suitable vehicle chassis ground.
- Verify the power and ACC behavior with a multimeter.
- Connect the hardwire cable to the dash camera.
VIOFO’s HK4 installation guidance specifically describes checking the fuse positions with the ignition on and verifying approximately 12 V or 24 V, depending on the vehicle electrical system. It also describes connecting the hardwire cable to the fuse tap and securing the ground connection.
Fuse orientation also matters. The appropriate fuse-tap orientation depends on the fuse-box circuit design, and installers should verify the circuit with suitable test equipment rather than assuming that the tap can be inserted in either direction with identical electrical behavior.
Competitive Analysis
The VIOFO kit can be compared with several common alternatives: single-type fuse taps, two-piece multi-size kits, and manufacturer-specific hardwire kits that include selected fuse adapters.
| Characteristic | VIOFO 8-Piece Kit | Single-Type Fuse Tap | 2-Piece Multi-Size Kit | Hardwire Kit with Included Fuse |
|---|---|---|---|---|
| Total Fuse Taps | 8 | Usually 1–2 | Usually 2 | Depends on kit |
| ATO | Yes | Depends | Depends | Depends |
| Mini | Yes | Depends | Often | Depends |
| Micro2 | Yes | Depends | Often | Depends |
| Micro3 | Yes | Depends | Depends | Depends |
| Low-Profile Mini | Yes | Depends | Often | Depends |
| Multi-Vehicle Use | Strong | Limited | Moderate | Depends |
| Spare Availability | High | Low | Moderate | Depends |
| Hardwire Kit Included | No | No | No | Yes |
| Best Use | Installers / multiple vehicles | Known single fuse type | Individual installation | Complete camera installation |
The main advantage of the VIOFO package is its breadth of fuse-format coverage. VIOFO lists five fuse families in the 8-piece configuration, which provides a practical inventory for multiple vehicles.
A single-type fuse tap, by comparison, can be simpler and potentially less expensive when the vehicle’s fuse type is already known. Its limitation is obvious: it becomes unsuitable if the installer later works on a vehicle using a different fuse format.
A two-piece multi-size kit can be sufficient for a single vehicle requiring two power connections. VIOFO itself offers a separate two-piece product covering multiple fuse formats. The eight-piece version provides substantially more spare capacity and is therefore more oriented toward repeated installations.
A complete hardwire kit with fuse taps included has another advantage: the power cable and fuse interface are supplied as a coordinated installation package. However, the included fuse types may not cover every vehicle. VIOFO’s current hardwire-kit listings show separate options for Mini, ATO, Micro2, Micro3, and Low-Profile Mini fuse configurations.
The VIOFO 8-piece fuse-tap kit therefore occupies a different position: it is an accessory inventory solution rather than a complete power-management system.
Limitations and Design Precautions
The product should not be confused with an active voltage regulator, battery protection circuit, or hardwire controller.
The fuse tap primarily provides the physical/electrical interface to the vehicle’s fuse box. Functions such as ACC detection, low-voltage battery protection, and controlled dash-camera power are provided by the compatible hardwire kit rather than by the fuse tap itself. VIOFO’s hardwire products describe these functions separately.
The correct fuse type must also be confirmed before installation. A physically similar-looking fuse adapter should not be substituted simply because it fits mechanically.
Likewise, the original vehicle circuit’s fuse rating and function should be respected. A fuse tap should not be used as a justification for increasing the rating of an existing protected circuit.
Finally, VIOFO does not provide a universal electrical-rating table for this accessory on the current product page. Therefore, applications involving high-current automotive equipment should be evaluated using the vehicle manufacturer’s electrical specifications and the applicable equipment documentation rather than assuming a generic current rating.
Conclusion
The VIOFO 4PCS × 2 Packs Circuit Fuse Tap with ATO, Mini, Micro2, Micro3 and Mini Low Profile Adapter Holder is a practical automotive installation accessory centered on one specific requirement: providing multiple fuse-format options for hardwiring compatible VIOFO dash cameras into vehicle fuse boxes.
Its most significant specification is the eight-piece total configuration, consisting of two four-piece packs and covering ATO, Mini, Micro2, Micro3, and Low-Profile Mini fuse formats. This makes it particularly suitable for professional installers, multi-vehicle households, and users who want spare fuse taps available for future installations.
The product does not replace a VIOFO hardwire kit. Instead, it functions as the fuse-box interface used alongside the appropriate hardwire cable. VIOFO explicitly states that the fuse tap itself does not power the camera and that the hardwire kit is sold separately.
From an installation perspective, the kit provides a cleaner alternative to continuously occupying a cigarette-lighter socket and supports the type of concealed power installation commonly used for permanent dash-camera systems. When combined with a compatible hardwire kit, the overall system can support ACC-based transitions between driving and parking modes and appropriate battery-protection functions.
The principal consideration is correct compatibility. Vehicle fuse boxes use different physical fuse formats, and the installer must identify the correct fuse type and appropriate circuit before installation. VIOFO itself recommends confirming the fuse type before purchasing or installing the product.
For a single known vehicle, a dedicated two-piece fuse-tap solution may provide all the necessary hardware. For repeated installations or multiple vehicles, however, the eight-piece VIOFO assortment provides a broader selection of common fuse interfaces and useful spare capacity. Its value therefore comes primarily from multi-format compatibility, installation flexibility, and inventory convenience, rather than from any active electrical-control function
