Working humidity: 10%-90% Working voltage: 5V Working current: 500mA Working temperature: -20C-75C Storage temperature: -40C-85C Support system: Windows 95/98/2000/2003/ME/XP/Vista or Mac OS 1 and above (driver needs to be installed under Windows 95/98 USB2.0 chip, real high-speed chip. (Hi-speed) USB2.0 interface, the theoretical maximum rate can reach 480Mbps, and backward compatible with USB 1.1/1.0 standard specifications. Equipped with four sets of USB sockets with hot swap function. Current protection function, support overload voltage and instant current protection function, safe and convenient to use. Package Contents: 1 * Docking station Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.