1 year warranty provided by the manufacturer from date of purchase. 4 ports, LED indicator, Compact and light weight. Compact and light weight. 4 USB ports standard A type up to 100mA current per port. 1 USB Mini B type Female input Connector. The Quantum hub provides full over current protection Quantum Hub is capable of chaining up to 127 usb devices. Truly Plug & Play XP, Vista, WIN 7, WIN 8, WIN 9 and WIN 10. Support Mac Linux Virtually all OS.
