I'm assuming by "plug in brackets", you are talking about a RAID cage. If that's what you're talking about, you just plug it in. You will have to go into the raid array configuration (you'll see a ...

Why pay store prices for storage when there are thousands of cheap used drives already on the market? A hard-drive dock or enclosure is how to turn cheap Facebook finds into PC storage options.

External hard drives can be moved between systems, reformatted at will, and repurposed without risking the data or stability of a primary computer.