The rack is a discontinued product from Parasound called a Zrack. They were made for their half width Parasound Z line of products. The rack hold up to 5 devices. Mine has a Emotiva DC-1, Zbreeze cooling fan, Ztuner AM/FM receiver, a R/EQ graphic equalizer and a Zcd player with a Schiit Lyr on top.
They are fairly rare. It took me a lot a searching on line to find this one.