This is the device that plugs into a car’s DC outlet and simultaneously charges/supplies power to four devices via two USB ports and two AC outlets. It provides a total of up to 2.1 amps to the USB ports for efficient recharging of tablets or smartphones and a total of up to 175W to the three-prong outlets for powering a computer, lamp, or other device. It has an LED power indicator and a ventilated high-quality cooling fan to prevent overheating. The power strip also has built-in AC overload/short circuit protection and DC voltage protection. Requires your existing charging cables/power cords. 1 3/4" H x 2 1/2" W x 7 1/2" L. (12 oz.)