Description: Product specification: 4: 12*3.5*2.2cm(L * W * H); 7: 16.5*3.5*2.2cm(L * W * H) USB cable length: 55cm Product weight: 100g/116g (with packaging) Interface type: USB2.0 plug and play Device support: USB2.0 interface Support system: Windows 98SE/2000/XP/ME/WIN7/VISTA or Linux2.4/Mac OS 8.5 and above Specifications: 1. Provide 4/7 USB interfaces, each output has a switch. 2. Support data transmission; Full speed 480Mbps, medium speed 12Mbps, low speed 1.5Mbps. 3. Support hot plug, easy to use. 4. Operating system: Win95 osR2/98SE/Me/2000/XP/VISTA/win7,Linux2.4andMac os8.5 and above; 5. Suitable for U disk, digital camera, digital video camera, audio system, display, input equipment, etc. 6. Novel and long design, cute and interesting, ABS material, light to use. 7. Conform to USB2.0 specifications. With 4/7 USB2.0 interfaces, plug and play. 8. With independent switch and power indicator. High-power equipment such as 500G hard disk/printer/scanner can be brought without power supply Package Included: 1*hub