The system this case formerly held was never turned on or put into service. The protective plastic is still on the (darkened acrylic) door's window. The (old style, underpowered) ATX power supply, scsi cd-rom's, cabling controller module were all removed to make room for... well, whatever it is you might want to do with this. The case was designed to house 7 optical drives and one controller module (it fits 8 optical drives without the controller module). There is a reinforcing wall running behind where the drives were, so it's not possible to fit a standard ATX motherboard in. See photos for measurements. This thing was built to last with nice thick steel. The empty case weighs 22.5 pounds as pictured. Includes the original door keys rubber feet. This is one of many vintage items from a computer store that closed in the early 2000's. It has been carefully stored in it's original box since that time. See my other listings for more items, including many in their original packaging! Thank you for stopping by. Have a great day!