It's really hard to fit in the alloted space (on any site) everyhing done to a system and every tweak used, either bought or made. On the right side (looking at the photo) of the rack from bottom to top are a Torus RM 20 Power Conditioner, a (solid state Modwright) modded Oppo BDP-83 (I don't play discs but I have a digital coax cable going to the DAC if someone brings one over and the it converts SACDs to 24/88.2 and then the EMM Labs DAC upconverts everythinh to 8x DSD). and on top are the power supplies to my Modwright preamp and Lumin U1 music server. On the other side of the rack from bottom to the top are the Onkyo TX-RZ3100 receiver, an old Samsung TV tuner and a Roku box (neither sees much of use as I have other system to watch on) and on top is my Panasonic DP- UB820 Blu-Ray. It someone is wondering what's stick up from behind the Panasonic, it is a wireless access point with multiple ethernet inputs for the Blu-Ray player, receiver, Roku, etc.( and that's done so that the ethernet jack behind the rack with an upgraded cable goes right to the Lumin music server at that end as well as connecting the NAS by another upgraded cable to the wall plate in my office).