Groupon offers the factory-refurbished Belkin Miracast Video Adapter
, model no. F7D7501, for $29.99. Coupon code "VISA5" drops it to $28.49
. With $3.99
for shipping, that's $26 under the lowest total price we could find for a new one. It allows you to mirror most Android 4.2 or higher, iOS, and Windows 8.1 devices. A 90-day Belkin warranty applies. Deal ends November 25.