The Black Box 2U Horizontal Rackmount Cable Manager mounts to any standard 19" EIA rack, cabinet or enclosure, and helps you organize your cabling through a covered finger duct solution, while also eliminating cable stress on your equipment. The dual-sided design features slotted ducts on both front and rear, providing ample space for all of your Cat5e / Cat6 / Cat6a and fiber optic cabling. It also includes passthrough holes that allow cable routing between the front and back. Constructed of heavy-duty carbon steel with a black matte finish, this cable manager provides a durable solution that you can count on to perform.