This cable management bar 8 rings. The rings at both ends can either be be mounted horizontally like the other rings or they can be rotated 90 degrees for vertical wire management with some modifications. The height is 1 rack unit tall, 1.75".
The rings are plastic, the bar is metal and all parts are black. Each of the 8 rings has the same inside dimensions, these are 1 1/8", height, and 2 1/8" depth, for maximum cable capacity.
For mounting hardware:Click here.