VeLLBox Unibody USB3.0 Hub, 4 Port Aluminum USB 3.0 Adapter Cable, Aluminum Alloy Shell, Grey, 10cm Add four USB3.0 superspeed ports provides high data transfer speed up to 5Gbp/s, With USB3.0 Male, Power from laptop and no need external power supply Unibody Aluminum Design, Superior Aluminum Quality, Compact Design and Cable with Cotton-fleece Coat to ensure reliability and durability. Green LED indicates normal operation Built-in surge protection keeps your devices and data safe. No drivers required for Windows 10 / 8.1 / 8 / 7 / Vista / XP, Mac OS X 10.6 to 10.9, Linux 2.6.14 or above Supports Hot Swap, Plug & Play, connected reciprocal compatibility with USB2.0/1.1/1.0 Package Content: 4-Port USB Adapter Cable X 1