... manufacturer,high quality,competitive price,good service -Storage temperature: -10 to 85 degrees Celsius -Product includes: user manual, USB cable ... Plug-and-Play installation, no software installation required -Four USB 2.0 ports up to 500mA (with power adapter) -Bus ... -Fully compliant with USB 2.0, 1.1 and 1.0 -Supports OHCI/UHCI -Over-current and high-inrush current protection 10 port usb 2.0 hub