Important Note: - 2.4Ghz wireless devices, such as Bluetooth keyboard and mouse adapter, may not work in close to USB3.0 which may lead to malfunction. Such devices should be connect to USB2.0 port is recommended. - The product is designed for data transferring ONLY not charging. - The total current of 4-port must not exceed 900mA. Some current-hungry devices, such as external HDD, should be powered by an independent power adapter to get stable connection. Specifications: - Working voltage: 5VDC/1A - Support operate system: compatible with WIN XP/2003/VISTA/WIN 7/WIN 8/WIN 10/ MAC/Linux and other computer operate system. - Transmission Speed: 5Gbps. Compatible devices: Compatible with PS4,Xbox, DVD burner, portable hard disk, USB fan, computer radiator, U disk, mouse, keyboard, printer, card reader and more USB devices. Premium USB 3.0 Hub SuperSpeed Data Transfer Individual Switches and LED Vertical Design Premium ABS Material Durable & Premium Material ABS engineering forged and PCB solid capacitor new chip technology will make more stable performance and greatly promote durability. High-Speed USB 3.0 Supports Transfer Speeds up to 5Gbps (USB 3.0), 480Mbps (USB 2.0), 12Mbps (USB 1.1).Reverse compatible USB 2.0 and USB 1.1. Ultra Slim Portable Design With excellent texture and portability, Perfect for traveling and taking on the road.The 4-port LED indicators show the status at a glance.