Color: Silver - Allows simultaneous operation of up to seven separate devices all attached to a single USB port - Self/bus powered or external AC powered - Per port over current detection and protection - Compatible with USB 2.0 and 1.1 support full speed up to 480 Mbps - Supports Windows 2000/2003/ME/Vista and Mac OS 8.1 or Later version - Comes with 110~240V US plug AC power adapter - Output: DC 5V 0.5A (actual) - Perfect for connecting USB 1.1 or 2.0 peripherals such as USB mice USB Portable Hard Drives USB CD- R/RW or DVD-ROM drives and USB 1.1 hubs - Package included: - 1 * Plastic vertical stand - 1 * USB 2.0 cable - 1 * 110~240V 0.5A US plug AC power adapter