Specifications: This USB splitter has high speed transmission. It is plug and play, low power consumption, hot-plugging and easy to install and use. It allows simultaneous operation of up to 3 separate devices all attached to a single USB port. The speed is up to 480Mbps, supporting USD2.0 and it is compatible with USB1.1 as well. Built-in current overload short-circuit can protect devices. It is suitable for Win95/98 / Me / 2000 / XP, for Linux2.4 and for Mac os8.5 or above. and nbsp; Item Name: and nbsp;Cable Hub Material: Plastic Features: 4 and nbsp;Ports, High Speed, Plug and Play Size: 5cm x 4cm x 1cm/1.97 and quot; x 1.57 and quot; x 0.39 and quot; (Approx.) Notes: Due to the light and screen setting difference, the item and 39;s color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x and nbsp;Cable Hub 4 Ports, High Speed, Plug and Play Plastic Cable Hub Cable Hub Plastic