High Speed Universal USB Hub 4 Port USB 2.0 Hub with Cable Mini Hub Socket Pattern Splitter Cable Adapter for Laptop PC Specification: 1.Item4port USB Hub 2. USB Version2.0 3.Cable Length0.45m 4.Surpport system: for Mac/Vista/Windows 5.Support Devices: Cellphone/Tablet/USB Driver/OTG/PC/Laptop 6.Size:76*24*24mm 7.Material:ABS 8.Shell manufacturing technique: Polished Alloy,Anti-skip,anti-fingerprint Parameter: 1. USB binding 2.0 chip, high speed chip. 2. (Hi-speed) USB2.0 interface, theoretical maximum speed up to 480Mbps, and backward compatible with USB 1.1/1.0 standard specifications 3. Equipped with four sets of USB jacks with hot plug function 4. Current protection function, support overload voltage and instantaneous current protection function, safe and convenient to use 5. Work output is stable 6. Working humidity: 10% - 90% 7. Working voltage: 5V 8. Working current: 500mA 7. Working temperature: -20C - 75C 8. Storage temperature: -40C - 85C Package Included: 1 x Mini USB 2.0 Hi-Speed 4-Port Splitter Hub Adapter For PC Computer"