Viofo Accessories for Dash Cams

Viofo Accessories at a glance

HK3, HK4, HK5 & HK6 hardwire cables — fuse box power cables for parking mode; HK3 is Mini-USB (A119 V3, A129 series), HK4 is USB-C (A119 Mini, A229, A329), HK5 is USB-C (VS1) and HK6 is USB-C (A329S series); available as cable only or bundled with an 8-piece fuse set
OP100 OBD-II power cables — plug-and-play parking mode power from the OBD-II port with no fuse box wiring; USB-C version for A329/A229 series, Mini-USB version for A129 series and A119 V3
MicroSD cards (64GB–512GB) — high-endurance U3, A2, V30 cards optimised for dash cam use; available in 64GB, 128GB, 256GB and 512GB
BP100 battery pack & EP100 expansion battery — LiFePO4 battery system for parking mode without draining the car battery; BP100 is 7650mAh (approx. 32 hours); the EP100 adds a further 7650mAh and requires a BP100 to operate
CPL anti-glare filters (CPL-100 to CPL-600) — circular or linear polarising filters to reduce windscreen reflections; model varies by dash cam series and lens position (front or rear)
GPS windscreen modules — replacement GPS mounts for A119 V3, A129, A229 and A329 series; log speed and location data in video files
Rear cameras — RC320 (1080p Sony STARVIS 2, A229 Pro/Plus), RWC400 (2K IP67 waterproof, A329S series) and RNF210 (1080p infrared fisheye cabin camera, A229 series)
D5000 & D6000 cigarette lighter chargers — D5000 is USB-A for A229 series and A119 Mini 2; D6000 is dual USB-C for A329 and A229 Ultra; both include a 3.5m cable
USB-C SSD data cables — 1.8m or 2.5m shielded cables for connecting an external SSD to A329 and A329S series cameras
Adhesive sticky pads — replacement windscreen mounts for A119, A119 Mini, A129, A229 and A329 series; from £8.95
BTR200 Bluetooth remote control — wireless 10g remote for A229, A139, A129, T130 and A119 Mini series dash cams; up to 5m range
RC320 replacement camera cable — 6m jack-to-USB-C replacement cable for the RC320 rear camera used with A229 Plus, Pro and Ultra

Which Viofo accessory should I choose?

The key choice for parking mode power is between a hardwire cable and an OBD-II cable. Hardwire cables (HK3, HK4, HK5, HK6) connect to the fuse box and offer four selectable voltage cut-off options; the OP100 requires no fuse box wiring and plugs straight into the OBD-II port. Connector type determines the correct hardwire cable: HK3 for Mini-USB (A119 V3, A129), HK4 for USB-C on A119 Mini, A229 and A329, HK5 for the VS1, and HK6 for the A329S series.

For CPL filters, the correct model depends on your camera series and lens position — CPL-100 for A119/A129, CPL-200 for A229/A329/A139 front cameras, CPL-300 for A229/A139 rear cameras, CPL-400 for the VS1, CPL-500 for the A329 rear and RTC300, and CPL-600 for RTC320, RTC420 and RC320 cameras. GPS modules and adhesive sticky pads are series-specific and are not interchangeable between different Viofo ranges.

Viofo Accessories FAQs

Q: What is the difference between the HK3 and HK4 hardwire cables?

A: The HK3 uses a Mini-USB connector and suits the A119 V3 and A129 series, while the HK4 uses USB Type-C and is compatible with the A119 Mini, A229, A229 Duo, A329, T130 and WM1.

Q: Can the EP100 expansion battery be used without a BP100?

A: No — the EP100 cannot operate independently and must be connected to a BP100 battery pack; together they provide a combined capacity of 15,300mAh.

Q: Which microSD card capacity should I choose for my Viofo dash cam?

A: All four capacities — 64GB, 128GB, 256GB and 512GB — share the same U3, A2, V30 high-endurance ratings and support 4K recording; the right size depends on how long you want to store footage before loop recording overwrites it.

Q: What is the difference between the two OP100 OBD-II cables?

A: Both plug into the vehicle's OBD-II port for parking mode power with no fuse box wiring needed; the USB-C version suits the A329 and A229 series, while the Mini-USB version suits the A129 series and A119 V3.

Q: Can CEN fit hardwire cables and battery packs at their workshop?

A: Yes — hardwire cables and battery packs involve fuse box or vehicle wiring connections and are best fitted professionally; CEN's fitting workshop in Beeston, Nottingham can carry out the installation for you.

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Viofo Accessories at a glance

Which Viofo accessory should I choose?

Viofo Accessories FAQs

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