Provides four Hi-Speed USB 2.0 ports for additional peripherals Compact size ideal for both desktop and notebook computers Overcurrent protection; hot-swappable Compatible with all USB-equipped computers Plug and play; Windows and Mac compatible Standards and Certifications USB 2.0, USB 1.1, USB 1.0 FCC CE WEEE Ports Transfer speeds: 1.5/12/480 Mbps Upstream port, Mini-B 4 downstream ports, type A AC power port Up to 500 mA power, all ports Physical Dimensions: 83 x 38 x 10 mm (3.25 x 1.5 x 0.5 in.) Weight: 28 g (1 oz.) USB Mini-B to type-A cable, 80 cm (31 in.) AC power adapter; cable, 1.4 m (4.5 ft.) Housing: aluminum System Requirements USB-enabled PC or Mac system Windows 98SE/Me/2000/XP/Vista/7/8; Mac OS 9 or above Available USB port Package Contents Hi-Speed USB 2.0 Micro Hub USB cable AC power adapter Incredibly small but fully capable. The Manhattan Hi-Speed USB 2.0 Micro Hub features an ultra-thin design that easily adds four Hi-Speed USB 2.0 ports to desktop and notebook computers, expanding connectivity for keyboards, mice, Web cameras and other peripherals. Its high-speed ports are USB 1.1 compatible to support older devices and provide data transfer speeds up to 480 Mbps for external storage, printing, and other activities. An included AC adapter supports high-power devices. Easy to Add Connectivity A durable aluminum case, compact size and bus with optional AC power make it easily transportable to add USB connectivity almost anywhere. Installation is simple with plug-and-play and hot-swappable capabilities and a Mini-B to type-A USB cable that quickly connects the Manhattan Hi-Speed USB 2.0 Micro Hub to any USB port.