The power brick is literally the size of a bar of soap, not a big deal AT ALL. Overall, this monitor is a great value and perfect size for limiting desks. I compared this to a similar Asus model and this won out (The Asus was more expensive and showed less value in my opinion).
https://www.amazon.com/Acer-S201HL-20-Inch-Widescreen-Ultra-Slim/dp/B003UVCSZ6

