I'd be glad if any of you could tell me what the name of this system is at about 0:15 in this youtube vid. It is between the Amp head and the cabinet, and I believe it is called a rackmount but i'm not going to call it that until I get some confirmation.

Link: http://www.youtube.com/watch?v=hyYXXQtWPw4
(It's what's holding the equipment, that's what i'm having trouble finding out the name of.)

I've been looking for what it is called and i am hoping i could have some luck on here.

Thanks.