Power Supply AC/DC Adapter Charger for Alexa Echo Spot, Echo Dot (3rd Gen and 4th Gen), Fire TV Cube, Show 5, Dot with Clock - AliExpress
Gonine 12V 1.25A 15W Power Adapter for Echo Dot 3rd Generation, Echo Dot (3rd/4th Gen) with Clock, Echo Dot Kids Edition, Echo Show 5, Echo Spot, and Fire TV Cube - Walmart.com
Truetone 1 Spot NW1 9V Adapter | The Fellowship of Acoustics