This unique hub connects up to four USB 2.0 devices with just one cable. Three USB A female ports will receive your mice, printers, hubs, or other USB devices without them being cluttered together. The USB Mini-b male plug is ideal for connecting your digital cameras, camcorders, and USB flash memory card readers. Unlike traditional USB hubs, this cable can slide behind your desk and out of the way. With its small form factor (54.4 x 29.6 x 12mm), it also eliminates the clutter associated with traditional hubs, and lets you spread out your devices. Plus with the Mini-b plug, you don't need a separate Mini-b cable. Bus-powered, so it requires no external power adapters. Compliant with USB 2.0 specifications; compatible with both PCs and Macs.