you set the laptop on the fan. I actually only used it to cool a 360. I ended up getting an elite. it powers through usb via laptop port. I hope that answers your questions. Thanks for inquiring.
lots of credits? that is a broad description. if alot of credits means ALOT then i would pay for shipping. I am not sure this item will make that many credits, so we'll have to see. thats what makes auctions so much fun!