Charge up to 3 devices simultaneously! This 3-port USB car charger works with MP3, smartphone and tablets including iPad, iPhone, iPod, HTC One, Nexus 4, BlackBerry, Samsung Galaxy Tab/Note, and Android devices. It shares 3.1Amps between devices with up to 1Amp per Port. Features built-in over-current and short-circuit protection with LED lighted ports. FCC, CE, e-Mark and RoHS compliant. (Connectors: 3 USB A Female / Input Voltage: 12-24vDC / Output Voltage: 5vDC 3.1Amp)