Description: Low-voltage protection, automatic power off. It will turn off when voltage is under 11.7V. Red for positive and black for negative. Universal for all cars and DVRs. Interface Type: Micro USB Comes with ACU, ACS, ACN, ACZ socket and matching fuses. Specification: Input Voltage: 12V Output Voltage: 5V 2A MAX Wire Length: Approx. 3.5m/11.5ft Material: Plastic+Metal Package Includes: 1 Set Car DVR Power Box