Stupidly top, it's steam deck) and it exists. In undemanding games, the fan is not audible. With a serious load it is audible, but not comparable with a laptop. In person, 5 ~ 4 hours of work, temperatures 66-68 degrees, which is buzzing. I ordered it at the market, it arrived sealed, new, with a Chinese plug. The seller did not put the adapter, but I had the benefit in stock.