Coffee warmerwith 4-port USB hub

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• Product size: 12 x 12 x 4.5mm
• Four USB 1.1/2.0 ports A-type female connectors
• Keep coffee, tea, and drink hot at 50 to 60°C
• Easy to install, no driver needed
• Supports Plug-and-play function
• Rated power: 2.5W at 5V DC
• With on and off switch
• Powered by USB
• Quality insulation material around the metal hot plate preventsburns