Instruct: Classify Amazon reviews into positive or negative sentiment
Query: *WARNING* Does NOT work with SNES.

I bought this power supply for my SNES and it states right on the box that it works with the NES and SNES. However it only outputs 9v and the SNES takes 10v. That coupled with it's cheep design and flimsy workmanship I can not recommend this product. Avoid this power supply in the yellow box. Get the one in the blue and green box from "Yobo" it will work much better.*This one works much better*[...]