SKU RD-OBD-II-Non-EV

IROAD OBD-II IM-300 Power Cable

Name: IROAD OBD-II IM-300 Power Cable
Rating: 4.82 (57 reviews)

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$44.99 - $44.99

$44.99

$44.99 - $44.99

$44.99

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IROAD IM-300 OBD-II Power Cable

Power a compatible dash cam through your vehicle’s OBD-II port with the 2m IROAD IM-300. Choose driving-only or parking power with its recording switch, and set the separate vehicle switch before connecting. This second-generation cable supports 12V to 24V systems. Check camera and vehicle compatibility before ordering.

OBD-II Power

S / P Switch

F / EV Switch

2m Cable

12V to 24V Systems

Choose how your camera receives power

Select S for driving only or P for parking power. Parking recording also depends on your camera settings and battery charge. After installation, test the camera with the ignition on and off.

Set the vehicle switch to F for fuel vehicles or EV for electric vehicles. Check the correct setting for your exact hybrid before connecting. The IM-300 supports stop-start operation and uses G-sensor and voltage information to manage power.

IROAD IM-300 OBD-II power cable with vehicle-type and recording-mode switches

What's Included

1 IROAD IM-300 OBD-II power cable

Specifications

Cable Length	2m / approximately 6.6ft
Electrical Rating	DC 12V to 24V; 2A
Model	IM-300, second generation
Recording switch	S: driving only; P: driving and parking
Vehicle switch	F / EV; confirm the appropriate setting for the exact vehicle
Operating temperature	−40°C to 85°C / −40°F to 185°F
Overcurrent shutdown	Minimum 3.4A trigger; not the normal operating output rating
Protection	Electronic fuse and low-voltage protection
Warranty	6-month manufacturer accessory warranty
Manufacturer / origin	IROAD Mobility Co., Ltd / South Korea

Frequently Asked Questions

What do the S and P settings do?

S supplies driving-only power. P supplies driving and parking power, subject to your camera settings and protection limits. This is the second-generation IM-300 with two switches. The older JW-100 and JW-200 were separate fuel/hybrid and EV cables; use the IM-300 instructions for this model.

Which setting should I use for a hybrid?

Confirm your exact vehicle. Fuel vehicles use F and electric vehicles use EV, but hybrid guidance varies. Our tested Toyota Land Cruiser J250 Hybrid uses EV mode. That setting does not establish compatibility for every hybrid.

Which vehicles should I check before ordering?

An OBD-II port alone does not guarantee compatibility. Port wiring and diagnostic standards vary, particularly on some EVs, older vehicles and commercial vehicles. Confirm your exact model and year, including Honda Civic applications and non-standard ports. Consult the current guide in Resources and test ignition and parking behavior after installation. These tested applications are incompatible:

2020+ Fiat 500e
2011 to 2022 Jeep Grand Cherokee
2003 to 2008 Pontiac Vibe and Toyota Matrix
2003 to 2008 North American Toyota Corolla

Can I use it with Thinkware or FineVu?

BlackboxMyCar supports compatible Thinkware and FineVu connections, including suitable Thinkware Q200 2CH and Thinkware U3000 1CH applications. Some older connectors differ. Confirm your exact camera and connector with our team; the manufacturer manual does not establish compatibility with other brands.

What should I use for BlackVue or VIOFO?

Choose the dedicated BlackVue BOC-300 or VIOFO OP100 for a supported camera. Each has its own camera and vehicle requirements; the IM-300 is not a universal replacement.

Can I use it in a 24V truck?

The cable supports 12V to 24V input and output. The vehicle port and camera must also support the supplied voltage. It does not convert 24V to 12V.

How should I protect the vehicle battery?

The IM-300 has low-voltage and overcurrent protection, but parking time still depends on battery condition, charge, camera load and settings. Use your camera's battery-protection settings and check operation regularly. Route the 2m cable clear of pedals, moving trim and airbags.

How does OBD parking detection differ from hardwiring?

Detection methods vary by cable. An OBD cable may use voltage changes, motion or timers, and some generate an ignition signal for the camera. A three-wire hardwire kit connects directly to the vehicle’s ignition circuit. Follow this cable’s instructions and test driving and parking recording after installation.

Resources

5 stars: 52 (91%)
4 stars: 2 (4%)
3 stars: 2 (4%)
2 stars: 0 (0%)
1 star: 1 (2%)

Excellent Brand

Excellent Brand names

Thanks for the review, Brian! We’re glad to hear you’re happy with the IROAD OBD-II cable and appreciate your support.

great item

it is a great item, but there are som you should carry.

Fast delivery and Works perfect!

Fast delivery and comes as promise. Easy to install and works well with Thinkware FA200 on an Acura vehicle.

Plug and play 👍

Hi Emerson, thanks for leaving a review and for shopping with us! If you have any questions, please don't hesitate to reach out.

Works for newer models

Purchased this to replace my old obd adapter from thinkware which did not work with my 2026 Volkswagen Tiguan. IROAD came in clutch and works great.

Thanks for the review, William! We’re glad to hear the IROAD OBD-II cable worked great with your 2026 Volkswagen Tiguan and was the right replacement for your setup.

Worked like it said it was going to

Worked like it said it was going to. Only a two pin for power only. That’s good.

Thanks for the review, Brandon! We’re glad to hear the IM-300 worked exactly as expected and that the simple power-only setup was a good fit for your needs.

Road cable worked out great

Road cable worked out great.

Thanks for the review, Chris! We’re glad to hear the IROAD OBD-II cable worked out well for your setup.

Would not recommend buying anything from this company.

Their return policy states....Our Returns & Exchange Policy
We provide returns & exchange support to customers in Canada and the U.S. who purchased directly from us at BlackboxMyCar. We stand behind our products. If you're unhappy with your purchase, contact us within 30 days to initiate a return. So I ordered the IROAD OBD-II IM-300 Power Cable, thinking I might use it to make my dash cam install easier. I wasn't sure I would need it but wanted to make sure I had everything on hand that I might possible need on the day of my install.I thought as long as I don't use it, then I can simply return it. Apparently not. Well turns out I can't use it at all due to the fact that my dash cam is not compatible with OBD ports. So when I contacted the company they told me there are no returns on cables. WHAT? THAT IS NOT WHAT THEIR POLICY STATES AS i COPIED AND PASTED IT ABOVE! So apparently even though this item hasn't even been opened, I cannot return it and I am just out $60.00. This is complete nonsense! They are a very misleading company and do NOT care at all about making their customers happy. Save your money and don't waste your time with this company!!!

Works great

Works great. Much better than hardwiring your dashcams.

Thanks for the review, John! We’re glad to hear the OBD-II IM-300 cable is working well and providing an easier option than hardwiring.

Plug and play, hardest thing was hiding the cable

Simple install for dash cam.

Works as advertised

I ordered this and installed it in my 2023 Ram 2500 to power an IROAD dash-cam. It was extremely easy and has not caused any problems so far. It's refreshing when something performs precisely as it should.

Works perfect!

Used for installation of a Thinkware Q200 in my daughters 1st care. Made it super easy and had plenty of length of cord. Would recommend for a quick and simple install.

Works great

The oem OBD2 cable bundled with the Thinkware U3000 dashcam did not work (did not provide enough power, kept resetting). I purchased this cable and BAM, I’m up and running!

The IROAD OBD-II IM-300 Power Cable works great with Thinkware U1000 in parking mode of my Niro PHEV 2024.

The IROAD OBD-II IM-300 Power Cable works great

The IROAD OBD-II IM-300 Power Cable works great with Thinkware U1000 in parking mode of my Niro PHEV 2024.

It's very simple and wired well--only two pins (power and ground) are wired so it shouldn't pose a problem to a car's onboard computer.

IROAD OBD-II Power Cable worked great for a few minutes

I connected the IROAD OBD-II Power Cable to my 2025 Mazda CX-5(Fuel Engine) and my Thinkware Q200 dashcam worked great for a few minutes. After a bit of research, I was able to conclude that the IROAD OBD-II is not the issue but rather the vehicle's OBD II port turns off after 5 minutes. I gave it 5 stars because the cable itself does work as intended.

Very short

Just made it to Dcam w 1” to spare in a Ram 2500.
Center windshield to front left of engine bay. Careful routing made it reach after first time
It was short.
Do yourself a favor and order the longer one.
This one is for a small car, length wise

Worked, unlike Thinkware's

Unlike Thinkware's OBD cable, this one worked out of the box on my wife's 21 Ford Transit Connect, and had additional features. Wish I had purchased this one first - would have saved me 1.5 weeks of dealing with Thinkware's pointless support staff.

IROAD cable

Customer service was great. Got my questions answered and placed the order . Shipped quickly and got it installed in a matter of minutes. Heard it was better than thinkware obd11 one as I heard it may cause check engine light to come on. All good do far

Better than Thinkware brand cable

Tried two Thinkware OBD II cables on my 2020 Ford Mustang GT, and both did not work properly. The IRoad OBD II cable worked like a charm the moment it was plugged in. It’s no wonder why blackboxmycar packages their Thinkware cameras with this cable. Attention to detail matters!

Why Didn’t I Get This Earlier

Have installed a few Thinkware Dash Cams now for friends and this is by far the quickest and easiest way to connect all your power needs. Was as simple as “Plug n Walk Away”. Might do this all the time now.

No worries about wiring connections or insulation, or struggling with heat shrink, no searching for the right fuse circuits to tap into. No having to search for the bolt that the “ground” wire works well with. Just pure simple elegance and ease.

Dash Cam Iroad OBDII

Although I haven't had the opportunity for the install yet, (weather) I am anxious to get it done. It will save a lot of time and effort of not having to hard wire. As well, the customer service was second to none and very informative. They answered all my questions and made it an easy process. Thanks guys.

IROAD OBD-II Power Cable

Suggest the plug to connect the dash cam can also have choice of Type C plug.

Works perfect in a 2022 Nissan Frontier

Have the Thinkware unit in my old truck that I removed to put into my 2022 Nissan Frontier. Much easier than my old hard wire kit. Just plug it in and hide the wire and you are done. Love it so much easier

Iroad obd cable

Purchased this cable 3 weeks ago and it works great. Easy to install and gives me the same features as if I would have hard wired. Using it for my 2 channel u1000.

IROAD OBD-II Power Cable

Bought this to go with my ThinkWare Pro200 dashcam as I did not want to have to risk draining my car battery by forgetting to unplug the power supply from my power outlet which does not shut off with the ignition. I also like that the cable allows me to easily use parking surveillance mode without having to get a professional to hardwire the included hardware kit into my car. In addition there is a handy on/off switch on the cable that allows you to turn off parking mode if you would prefer not to have it running when ignition is off.