Here’s an inexpensive gift idea to warm any coffee-loving geek’s heart.

The mug warmer keeps your mug of coffee hot, and you get a couple more USB ports as a bonus.

Perfect for your cubicle or home office when you’re working hard and don’t want to have to reheat your coffee or make a fresh brew.

The Deal: Keep your coffee warm with the USB Mug Warmer & Hub for just $12.99.

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