I have been using this for a while. One of the best investments when it comes to laptop is to get a cooling fan that you can put the computer on top of it. I had another cooling fan with my old laptop. Same brand, but more bulky than this one.
This one, this connects throught the usb port to get the power which is a good thing. Its less hassle than having an ac to plug the cooling fan in This is a double fan cooler so it covers more of your computer.
Like most fans, you do need to clean it out from time to time to keep dust and animal hair out of it. This is very lightweight. It will fit most laptops. I have a 17" laptop and it worked for me. I am even able to sit on the couch or my bed with the cooling fan right under it.
The only way to rurn it on is through plugging in the usb into the computer. The usb cord is not that long though. Sometimes I do wish that it was a bit longer, but it still works.
If you are looking for a fan that has a double fan, this would be one I would suggest to you.