USB 3.0 & USB-C Power Plug with Volt Meter charges two devices simultaneously while the LED screen displays voltage status. Can be used on a boat, car, or RV. Total output 6A load is split 3A per side as needed. USB 3.0 features Quick Charging (QC) for supported devices, giving enough power to charge phones, pads, and tablets quickly and efficiently. USB-C features Power Delivery (PD) for faster and more flexible charging. This portable version fits all Sea-Dog Power Sockets and any standard 12V receptacle. Constructed of aluminum and injection molded nylon. Output DC: 5V/6A. Input: 12-24 VDC. Blue LED display. FCC, CE, RoHS compliant.