The DUB-1340 4-port USB 3.0 Hub connects the new generation of USB 3.0 devices - such as printers, camcorders and USB Hard Drives - to your computer at the fastest speeds. It comes with its own power supply to provide power to connected USB devices, and is backward compatible with both USB 2.0 and USB 1.0 standards.D-Link's USB 3.0 Hub complies with the USB 3.0 standard, which provides speeds of up to 4.8 Gbps. This is 10 times the speed of the USB 2.0 standard, and allows you to transfer a High Definition film in around 70 seconds, or 100 images in 1 second.This 4-port USB 3.0 Hub can provide power to connected USB devices (like USB Hard Drives) by means of the included power supply. This is not necessary when the devices connected to the hub don't need to be powered from the USB port. This feature makes the DUB-1340 a truly portable solution.This USB hub can be connected in cascade to provide additional USB 3.0 ports. Up to 42 hubs can be connected in daisy-chain configuration with a total number of 127 available ports.The DUB-1340 works with any Windows, Mac or Linux system. Your computer will detect the USB hub and install the drivers automatically, so there is no need to carry the drivers on a CD or a memory dongle.