Extend Function: designed to extend the connection between computer, laptop, keyboards or cameras which equipped with usb type A port. High Speed: USB 3.0 A support data transfer speeds up to 5 Gbps,10 times faster than USB 2.0. Fast charging speed up to 3A current max. Universal Compatibility: suitable for USB hub, printer, card reader, bluetooth adapter, flash drive, hard drive, mouse and more with the USB ports. Transmission Stability: Gold-plated connectors ensures maximum conductivity and minimum data loss. Plug and play, no driver needed. Worry-Free Warranty: One-year Hassle-free Warranty and Lifetime Friendly Customer Service.