Since my 8 year old PC decided to quit on me after its very long life, I decided to take out the HDD as it's the only useful component left for me. It's a "Maxtor Diamond Max Plus 9 ATA/133 IDE HDD 3.5'" I want to now use it as an external hard drive, after a quick search on Google I found out that an IDE to USB cable on its own won't do the job because it won't supply enough power for my hard drive since it is a 3.5". I came across this easy to use caddy: Code: [ Only registered users can see the bbcode. Click Here To Register... ] and then an adapter like this: Code: [ Only registered users can see the bbcode. Click Here To Register... ] The listing for the adapter says that it comes with a 1 x 4 pin power, can anyone explain what this is and will it mean that I can power the HDD without a plug? I was looking for a way to power it without using a mains power plug but it doesn't seem like it's possible..