Alxum USB 2.0 Hub 4-Port USB Data Hubs Splitter Built-in 80CM Long Cable for iMac, MacBook Pro/Air, Mac Mini, Chrombook, Microsoft Surface 4/3, Surface Book, Aluminium 4 port USB 2.0 or 1.1 devices to Compact size and portable. Easily expand by connecting up to your Macbook, Laptop, ultrabook, tablet PC and any USB 2.0 capable computer works with USB. Works with USB extension cable and reverse Compatible with USB 1.1 Plug-and-Play; hot-plugging and driver free. Designed with a built-in surge protector to keep your devices safe Build in Overvoltage/Overcurrent/Leakage and Short-Circuit protection unit. The connection cable is attached to the hub -no need to worry about leaving it behind or losing it Compatible with Windows XP /Vista/7/ 8 /8.1 (32/64-bit), Mac OS 10.10 or higher, Linux.(Pls Note: Item only sync data can not use it for charging.)