Feature: Support USB 2.0 compatible with USB 1.1, speed up to 480Mbps. 7 Port USB 2.0 Hub.USB 2.0 high-speed processing core, with automatic switching rate, to provide the best transfer rate. Support Plug and hot swap, support overload voltage and instantaneous current protection, safe and convenient. Suitable for notebook computer, PDA, all kinds of small and portable type PC. Specifications: Product name: USB Hub Material: Plastic Color: Black and silver Size: Approx. 16X3.4X2cm/6.29"x1.33"x0.78" Operating temperature: 0 ℃ -70 ℃ Transfer rate: Up to 480Mbps Interface number: 7 Length of cable: Approx. 73cm/28.7" Interface: USB 2.0 Weight: 90g Package Included: 1x USB Hub Ships in 7 business days. It is shipped from China. Delivery is provided by China Post Air Mail. Delivery time depends on the couriers, local customs in your country also holidays, weather conditions. Usually it takes from 39 to 60 days, depending on the customs at your country.