Umirro Super Speed 4-port USB 3.0 Hub + 1 Charge-Only Port - 5V 2.4A, 12V 2A Power Adapter and 3.3-foot USB 3.0 Cable Included, Latest VIA VL812 Chipset and updated Firmware, Backward Compatible with USB 2.0, 1.1 and Revision 1.0, Supporting Microsoft Windows XP / Vista / 7 /8, Mac OS 9.1 / Mac OS 10.2 or above / Linux Fully compliant with four USB (Universal Serial Bus) specifications: 3.0, 2.0, 1.1 and Revision 1.0 with the data rates 5Gbps, 480 Mbps, 12 Mbps and 1.5 Mbps. Supports Microsoft Windows XP / Vista / 7 /8, Mac OS 9.1 / Mac OS 10.2 or above / Linux. No installation of drivers required for Windows XP / Vista / 7 / 8, Mac OS 10.2 or above / Linux. (For the version Mac OS 10.1 or below, you need to install the driver provided by Apple). Additional charging port (5V 2.4A) can charge any device at full speed - no need to decide between them as long as your device's input current and voltage falls within the accepted range (5V / 0.1 to 2.4A). Sophisticated circuit design with Over-Voltage Protection, Over-Current ProtectionOver-Heat Protection and Short-Circuit Protection to ensure stable output to prevent damage to your device. Charging will automatically stop when battery is full. 4 USB 3.0 ports offer 0.9A each. Built-in surge protector. Supports Plug and Play and hot swapping. LED indicators display the status of DC power supply and USB connections. Package includes: 1 USB 3.0 4-port Hub / 1 12V 2A Power Adapter(with 4feet cord) / 1 USB 3.0 Cable (3.3 feet). 24 * 7 email support, Free lifetime technical support.