This is my second Lian Li HDD Power Controller, I have separate operating systems on my machine, for different things, (school, game, design, etc). I never bought from Cooler Guys before, it was delivered fast, as promised, and more economic than the one I bought first somewhere else. This controller is of better quality than others that are more cheaply offered somewhere else. keep in mind that this unit is NOT "hot swappable", it is like this by design, I had 7 or 8 different computers at home with different operating systems, with different software versions, I was not using all of the computers at the same time, so this was my solution, now I have only 2 computers with the power controllers, and more room.
Al in all recommend the Lian Li HDD Power Controller if you, like me, want to reclaim space, and have separate operating systems.