Review on ATPWONZ Mini USB Pump 200L/H Submersible Water Pump for Aquarium Fish Fountain Garden House Water Hydroponic, DC 3.5-9V, 1-3W by Sarah Salinas

I bought this pump to replace the AC pump on a tabletop fountain that was not working properly. The biggest problem with the original pump was the size of the power cord, which was too thick and interfered with the fountain. The USB cable is about half as thin and works much better, so mission accomplished. While most of these pumps look the same on the outside, I found these to be better made than most when I took them apart to clean them. .I run it on a portable solar system so I can place my little fountain where I want without just having to place it next to an outlet. I can plug it into any power source that has a USB plug, including a wall outlet if I want. This pump's specifications were a direct drop-in for the AC pump it replaced.