Is it possible to power multiple PC case fans in series off a single DC power adapter? If so, any pointers on how to do this? I'm planning to start construction on my new keezer this weekend and will be using multiple case fans to cool the coffin box as well as to move air around the freezer skin (building a cabinet around it with a 3.5" gap). If possible I would like to run 3 fans with one power supply... I'm pretty much a total electrical novice...