Transcend HUB2. Hub interfaces: USB 3.2 Gen 1 (3.1 Gen 1) Type-A. Data transfer rate: 5000 Mbit/s, Product colour: Black, Certification: CE/FCC/BSMI/KC. Power source type: USB, Input voltage: 5 V, Input current: 0.9 A. Windows operating systems supported: Windows 8,Windows Vista Home Premium,Windows 7 Home Premium,Windows XP Home,Windows 8.1. Width: 73.8 mm, Depth: 37.2 mm, Height: 10.4 mm