i-tec Metal USB 3.0 Passive HUB 4 Port. Hub interfaces: USB 3.2 Gen 1 (3.1 Gen 1) Type-A. Data transfer rate: 5000 Mbit/s, Product colour: Silver. Input voltage: 5 V. Windows operating systems supported: Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 8, Windows 8 x64, Windows 8.1, Windows..., Mac operating systems supported: Mac OS X 10.0 Cheetah, Mac OS X 10.1 Puma, Mac OS X 10.10 Yosemite, Mac OS X 10.2 Jaguar, Mac OS X.... Width: 55 mm, Depth: 55 mm, Height: 14 mm