Have to hot or cold — USB accessory
Finally, here’s a USB accessory from Japan that plugs into one of my computer’s USB ports to keep my beer cool or my sake warm. Perfect for the office! 
Keep Your Drinks Hot or Cool USB Style
Gizmodo.com: …..the Japanese have .. released a USB device that … operates in either ‘hot’ or ‘cool’ mode, retaining the temperature of your beverage for up to 4 hours….
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