This USB 2.0 4-Port HUB+Repeater is a highly integrated, high quality, high performance, low power consumption, and low cost solution for USB 2.0 4 Ports HUB with Repeater cable. This HUB with an active repeater cable that extends the distance between the HUB and the computer up to 12 Meters. The USB HUB+Repeater assures signal quality and maintains electrical and timing specifications are in full compliance with USB 2.0/1.1 standard. Power directly from USB port. With its unique design, this HUB can lock to USB 2.0 Active Repeater Cable by clipping between USB A Male and Female end, making firmly connections without breaking links between cables. Up to 5 of this HUB & USB Active Repeater Cables chained together, you zan reach for a maximum distance up to 60 meters. Applications Model EXC-0202H Features 4 downstream USB 2.0 Port Full compliance with USB 2.0 I 1.1 specification Plug and Play. No additional drivers required Cable length - 12 Meters Housing dimension : 81.7mm x 41 mm x 16.7mm Connector: 1*USB type A Male and 4*USB type A Female Supports Windows/Mac OS Operating Temperature : 0°C - 70°C Storage Temperature : -55°C - 150°C Power Adapter (AC/DC, 5V/2A) (Optional)