Instant USB Expander Powered USB hub expands 1 USB port to 7 USB 3.0 ports and 3 charging ports for keyboard, mouse, printer, hard drive and more USB peripherals simultaneously. High-Speed TransmissionUSB Hub with 3.0 USB ports has a transfer speed of up to 5Gbps. With the ultra-high transferring speed, the transmission of HD photos, videos, and any files can be done in seconds.