Specification‎:‎ 1‎.‎ Extend 4 USB ports‎,‎each supplies power 500mA ‎(‎max‎.‎‎)‎ 2‎.‎ USB 2.0 high speed transfer port‎,‎ compatible USB 1.1 downwards 3‎.‎ No driver required‎,‎plug and play‎,‎support hot swapping 4‎.‎ USB 2.0 device supports 480Mbps ‎(‎max‎.‎‎)‎‎;‎ USB 1.1 device supports 12Mbps ‎(‎max‎.‎‎)‎ 5‎.‎ Built‎-in overcurrent short circuit protection setting‎,‎ protect your computer and device from damaging Features ‎:‎ 1‎.‎ Support over 99% USB digital products such as U‎-disk ‎,‎mobile HDD‎,‎ video camera‎,‎ printer‎,‎mouse‎,‎ keyboard‎,‎ Mobile phone and so on‎.‎ 2‎.‎ It can be used as a multi‎-interface USB charger but it does not have the function of fast charging‎.‎ 3‎.‎ Products superior quality‎,‎ wear‎-resistant and durable‎.‎ Note‎:‎ If you have any questions‎,‎ please feel free to contact us at any time Package Included‎:‎ 1 x SSK SHU027 USB2.0 4 Ports HUB