4-Port Superspeed USB 3.0 HUB - Up to 5Gbps data rate - Connect up to 127 devices by cascading multiple hubs - 4 downstream USB Type-A (female) ports - 1 upstream USB Type Micro-B (female) port - Standards: USB 3.0, 2.0,1.1,1.0, OHCI, EHCI - all Type-A ports are charging with up to 2.1A, total power up to 3.2A, suitable for USB devices with higher charging rate like iPad - Power: External Power adapter 5V/4A - USB 3.0 cable included.