Smart&Cool &reg; Mini High speed Hubs USB 2.0 4-Ports Hub with a Built-in 5inch USB 2.0 Cable Pocket Mini size with 5inches USB connector Expand by connecting up to 4 Ports USB 2.0, 1.1 devices to any USB 2.0 capable computer Compliant with USB version: USB1.1/2.0 System Requirements: Desktop or notebook computer with USB port, and one of the following operating systems (no driver needed): Windows 2000/Win XP/Vista/Windows 7 System Requirements:Mac 10.1 up. Connect digital cameras, iPods and iPhones, card readers, USB speakers, and more.