Specification: Interface: USB2.0 Use voltage: 5 volts Support system: For 95/98/2000/2003/ME/XP/Vista or for OS 8.1 or higher (need to install the driver under 95/98) Color: black Material: plastic feature: Four groups of USB sockets with hot spots The USB 2.0 high -speed processing core has an automatic switch rate and provides a transfer rate. It does not need to be switched. It is suitable for laptop, PDA, various small and portable PCs. Compliance with USB 2.0 specifications, compatible with USB 1.1/1.0 standard specifications, Support insertion playback functions and heat sweeping functions. You can connect high -speed (480/12Mbps) and low -speed (1.5Mbps) USB peripheral devices. Current protection function: Support overload voltage and instantaneous current protection functions, which can be used safely. Good workmanship and good performance. Easy to use. Long -term service life. Different batches,The appearance of the interface may be different, which does not affect Package Contents: 6 x Hub USB computer separator Only the above package content, other products are not included. Note: Light reflection 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.