Extremely fast: the 7 ports deliver data transfer rates of up to 5 Gbps. Backward compatibility with USB 2.0 / 1.1 Exclusive PowerIQ technology: 3 PowerIQ ports detect your device and deliver the fastest possible charge of up to 2.1 A per port. The remaining standard ports charge at a speed of up to 0.9 A per port. Compact power package: strong charging and data ports keep your desk tidy thanks to its compact size. The 12 V / 5 A AC power supply provides the ports with sufficient energy.