USB cup / mug warmer with 4 USB hubs
Keep coffee, tea and drink hot at 50 to 60 degree Celsius and very easy to install,
needless to install drive and plug/play
Rated power at 2.5W at 5V DC
With on and off switches
The power is replenished from the USB port, needless external power supply or battery
Quality insulation material around the metal hot plate prevents burns
