We all have many USB connected devices that connect to a computer or laptop. But with each new device we obtain, finding a free USB port gets more and more difficult! This is a 10 port USB hub and charger in one, so you can transfer files, and charge devices at up to 1.5A from each port. This unit incorporates BC 1.2 technology which is able to detect your devices fastest charging speed for smartphones and tablets. It has a combined maximum power of 4A, but realistically not everything will be charging at the same time. Includes a 5VDC, 4A power supply. Features: Interface: USB 2.0 Type-A Transfer Speed: Up to 30Mbps Fast Charging: BC 1.2 Power: 5VDC, 4A Cable Length: 1.2m Type of Hardware : Hub Confirmed Compatible Operating Systems : Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP, Windows 2000, Linux, Mac OSX 10 Cheetah Length : 157.0mm Width : 30.0mm Height : 21.0mm Supported USB Standards : USB 2.0 Number of USB ports : 10.0