4 port USB 2.0 hub, DIGITUS Design, 4x USB A/F, 1x USB B/F, USB cable included A/B 1m and external transformer.• USB 2.0 and USB 1.1 compatible• 4 x USB A plugs (USB 1.1 and 2.0 endings) • Maximum data transfer rate: 480Mbps (USB 2.0) • Surge protection to all cable ends • "Hot-Plug" compatible, "PnP" compatible• PC and Apple computer compatible (G3 and G4 serie) • Compatible with the following systems: Windows 98SE / 2000 / XP / Vista and MAC OS 10.x and higher • Delivered with USB connection cable and transformer