The Open-Access Horizontal D-Ring Cable Manager provides open and efficient access to power, coaxial and communications cables and switch ports. Made of a steel frame with modular plastic snap-in D-rings, the cable manager is lightweight and durable, and but flexible enough to endure seamless moves, adds, and changes. It is compatible with any standard EIA 19 inch (483mm) rack or cabinet. The manager is 2 RU and has 3 inch x 3 inch D rings on the front only. The cable manager is black.