Shop4Tech offers the Microsoft Notebook Cooling Base in Red/Black, model no. Z3C-00022, for $14.99. Coupon code “ACC15” drops it to $12.74. With free shipping, that’s the lowest total price we could find for this base in any color by $12, although it was $2 less on Christmas Day. It features a contoured base, flip-stand for desktop use, and 70mm fan.

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