Specifications Hign-concerned Chemical:None Package:Yes Model Number:USB HUB Certification:CE Funtion:None Standard:USB 2.0 Interface Type:USB 2.0 Ports:4 Origin:Mainland China Plug Type:None Product Name:USB HUB Compatibility With:For Windows 98/2000/ME/XP/Vista/WIN7 Feature 1:Plug and Play Feature 2:USB HUB Feature 3:USB 2.0 HUB Feature 4:USB HUB 2.0 Feature 5:HUB USB 2.0 Feature 6:HUB 2.0 USB Feature 7:USB Splitter Feature 8:USB 2.0 Splitter Feature 9:USB 2.0 Splitter Adapter Feature 10:USB Splitter Adapter 1.Item:4port USB Hub 2. USB Version:2.0 3.Cable Length:0.45m 4.Surpport system: for Mac/Vista/Windows 5.Support Devices: 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 9. Working temperature: -20C - 75C 10. Storage temperature: -40C - 85C 1 X 4-Port Splitter Works with most USB-A devices Connect up to 4 USB devices(including smartphones, tablets, flash drives and more) at the same time. 480Mbps High Speed Transmission Large files are easily transferred in seconds,Without dropping connections