
The upgrade product has stopped working, the fuse has blown and does not work properly. I replaced the fuse with extra ones and they don't work. Will return. It runs off the 14 volts in your car and provides 12 volts for everything you need. What I liked the most is that it also includes 2 extra fuses in case it blows which is good to have them. Some key features are that it comes with 4 USB ports, a switch and also 3 cigarette ports which is a great addition. I currently have 3 DVRs in my car, two in the front and one in the back, which is great because I have enough connections for everything.

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