Rexing OBD Hardwire Kit NOT compatible with Rexing S1 Pro, R4, DT2, and M2 Max dash cam Rexing 14ft Mini USB OBD Hardwire Charger Cable for Rexing Dash Cams and Other Dash Cams with Mini USB Power Port Product Details: Compatible: All Models EXCEPT for S1 Pro, R4, DT2, and M2 Max Input: DC12V-24V Output: 5V, 2A, Mini-USB Port Cable Length: 13ft