Charge up to four devices quickly and efficiently! This 4-port USB direct-plug wall charger works with MP3, GPS, smartphone and tablets including iPad, iPhone, iPod, HTC One, Nexus 4, BlackBerry, Samsung Galaxy Tab/Note, and Android devices. It has a dedicated port with 2.1Amp for faster charging while its smart-chip automatically adjust power output for the 3 other USB ports. Light weight and compact make it ideal travel accessory. Features built-in over-current, short-circuit protection and folding AC power plug. FCC & CE Certified and RoHS compliant. (Connectors: 4 USB A Female / Input Voltage: 100-240v / Output Voltage: 5vDC 2.5Amp or 12.5Watts / Power Connectors: 2-Prong / Color: White)