It's on me, I should have paid for attention to the dimensions. This thing is part monolith and part ships-anchor. It's complete unit. The reason I rated it so-so is because it's the one of the pickiest system/BIOS' I have ever dealt with. It is NOT a fan of SSD drives. I gave up and threw the old motor-drive back in there. It's got power that goes with its specs, but I'm dreading the day the drive dies.