USB HUB - 4 USB ports A type female connectors - Chains up to 127 USB devices. - Truly plug & play automatic installation - Support both full-speed 12mbps and low-speed 1.5mbps transfer rates. USB WARMER: -Heat the metal plate temperature at 50-60 degrees C (122-140 F) -Warm your coffee, tea or drink -Easy installation,no driver required,plug& play -Rated power: 2.5W -5V DC -With on/off switch -Red LCD indication when warmer is turned on. -Quality insulation material around the metal plate prevent burns -USB powered,no batteries needed. LCD BACK LIGHT - LCD back light will be turn on when plugging the USB cable(1)into the USB port. METAL PLATE TEMPERATURE -you can view the metal temperature on the LCD -Press <C/F>button to select Celsius or Fahrenheit display format.
