High quality MMOBIEL Product Super Speed Data Hub: Sync data at blazing speeds up to 5Gbps, fast enough to transfer an HD movie in seconds. Compatible with Windows 10/8/8.1/7 / Vista / XP and Mac OS X, Linux and Chrome OS. ( The USB 3.0 Hub Reverse Compatible USB 2.0 and USB 1.1. Multi-Port Expansion: Transform instantly one of your computer's USB ports into four ports. (This hub is not designed to Charge devices.). Ultra Slim & Advanced chipset: Advanced chipset with great thermal design, will not heat even if used for long time. Precision-designed for heat resistance and incredible durability. High Speed Data Hub: Supports Transfer Speeds up to 5Gbps (USB 3.0), 480Mbps (USB 2.0), 12Mbps (USB 1.1). Note: This hub support output max current up to 900mA.So some HDDs that need current more than 900mA need extra power adapter. High quality product by MMOBIEL: Each part is tested before shipment, Item in Stock .