mbeat® “STICK' 4-Port USB 3.0 Hub - Aluminium Portable 4 Port Data Transfer Super Speed USB Hub Adapter Ultrabook MacBook SurfaceBook Feature: 4 x USB 3.0 ports for high speed data transfers Stylish and elegant aluminium finish Sleek, compact design for portability and durability For Macbook, Surface Pro & Ultrabook Specs: USB Port: USB 3.0 Speed: Up to 5Gbps Compatibility: Backward compatible with USB 2.0 Material: Aluminium + plastic design Support OS: Windows XP / Vista / Win7 / Win8 / Win 8.1 or Mac OS 10.X and above Product Size: 11.0 x 4.0 x 2.2 cm Product Weight: 71g Package Size: 12 x 16.2 x 2.5 cm Package Weight: 121.5g Package Contents: USB 3.0 hub