Transcends hardwire power cable allows users to wire their Drive Pro dashcams directly into their vehicles fuse box. Transcends hardwire power cable has built-in power protection circuitry to prevent damage to either your vehicle or your Drive Pro dashcam in the case of a short circuit or power surge. Key Features 4-meter mini-USB / micro-USB cable for flexible routing & easy wiring Stable power supply is provided Output short circuit protection Suitable for Transcend’s Drive Pro dashcams Appearance Weight (Max.) 83 g (2.93 oz) Cable Length 4 m (13.12 ft) Operating Environment Operating Temperature -20°C (-4°F) ~ 65°C (149°F) Input Voltage 10V ~ 28V Output Voltage 5V / 1A Note Professional installation recommended.