After reviewing the $24.99 stand alone Fire TV, I received several comments asking if there was a cheaper alternative to the official $19.99 Fire TV power adapter sold by Amazon. After doing some research, I ordered a few power adapters to test. The one I would recommend getting is this $7 power adapter from eBay. Be sure to select “6V 2.5A” from the Output Voltage dropdown menu, “Positive Pin Center” as the Pin Polarity, and “5.5mm x 2.5mm” as the Plug Size. It powered up the Fire TV and worked perfectly through all of my testing. It’s worth mentioning that the official Fire TV power adapter is rated at 6.25 volts, while the above power adapter is rated at 6 volts. I’m not an expert and can’t say if the lower voltage could damage your Fire TV, but my testing showed no difference between this generic power adapter and the official one. Amazon does not recommend using a power adapter other than the official one they manufacture.