Middle Atlantic HCM-1DR
This HCM-1DR Horizontal Cable Manager: 1U D-Ring Style Front & Rear from Middle Atlantic is a rackmount cable manager that facilitates the organization and pass-through of cabling to other equipment. Cables can be passed through the top, bottom, and back of the cable manager.

It can also provide cable strain relief for more reliable connections. It is constructed from welded steel and has a durable flat black powder-coat finish. This model occupies 1U of rack height and features d-ring style cable-management prongs on both its front and rear sides.