Compatibility Limited: Specifically designed for Rexing dash cam models (R4, DT2, M3, M2 Max, M2-4, M4-4, RH2 Series, and CPDuo). Not universally compatible with all dash cams. Fuse Tap Installation Required: Requires basic automotive electrical knowledge or professional installation to tap into the fuse box. Improper installation can damage the vehicle's electrical system. Potential Battery Drain (if improperly installed): Although designed to prevent battery drain, incorrect wiring could lead to significant battery depletion. Type-C Only: The Type-C connector limits compatibility with dash cams that use different power connectors. This is specifically for Rexing models using a type-c connection. Fuse Tap Cable Length (Potential Issue): While 11.5ft is generally sufficient, some vehicle setups might require more length.