I had ordered another one and ultimately received this. Initially, I was dissatisfied because it has a maximum output of 2.1A, while I had ordered 2.4A, but in practice, it works reliably and continuously with a wifi camera where another 2.4A adapter had burned out within 2 weeks. The only downside, therefore, is the inherently lower possible intensity it supports and that when it is connected, a purple light is constantly on through its ports, which some may not want.