CredDeal Super Speed 4-port USB 3.0 Hub + 1 Fast Charging Port (5V/2.4A Each) with 3.3-foot USB 3.0 Cable Compatible with USB 2.0, 1.1 and Revision 1.0 powerful Supporting Microsoft Windows XP / Vista / 7 / 8, Mac OS 9.1 / Mac OS 10.2 or above / Linux 4 USB 3.0 ports Super-Speed interface support transfer rates up to 5Gbps, 2 USB smart charging port charging up MAX 2.4A(BC1.2 charging protocol). It can be used on USB 3.0 HDD, High-resolution camera, Video surveillance cameras, digital video cameras and variety of audio and other peripheral devices. One extra vertical USB charging port goes to fast charging most smartphones / Apple iPad series / SAMSUNG GALAXY TAB series. 4-Port high performance USB 3.0 Super Speed Hub and Dedicated 2.4A Charging Port and 48W Power Adapter (VIA VL812 Rev B2 Chipset with v9091 firmware. Windows, Mac OS X, and Linux support. Full USB 2.0 backwards compatibility). Backward compatible with USB 2.0/ USB 1.1. Package Content: 1 USB 3.0 4-port Hub / 1 12V 4A Power Adapter (with 10feet cord) / 1 USB 3.0 Cable (3.3 feet). Free lifetime technical support.