ATX computer chassis, rackmount (2U). Includes Thermaltake 430W PSU, USB card reader and an LCD front panel by Crystalfontz.
Total of 2x 5.25" + 5x 3.5" drive bays. 3 of the 3.5" bays are internal and the front 3.5" bays have a card reader and a LCD/button panel by Crystalfontz (both USB 2.0).
Full depth is just under 24" from the handles to the back corner.
My homelab NAS motherboard died and I just bought an off-the-shelf replacement rather than rebuild this again.