CG0251B Features Standard USB2.0 interface Comes with 10 high-speed ports Transmission rate is up to 480Mbps The transmission rate can be up to 500Mbps for expansion with 4 USB ports Also compatible with USB1.1 Plug-and-play capability, no driver needed Supports over-charged, over-current and short circuit protection, safe to use Compact size for ease of carrying General Specs Connector Type USB 2.0 Port Number 10 Transmission Rate 480Mbps Power Supply USB 5V/600mA External Power 5V 1.5-2A Supports System Windows 95 osR2/98SE/ME/2000/XP, Linux 2.4 and Mac OS 8.5 Vista and above Working Temperature 0℃-70℃ Storage Temperature 10℃-90℃ Working Humidity 10%-90% non-condensing Storage Humidity 10%-90% non-condensing Current Consumption 50-60mA (25mA for each USB port while not working)