The NEXTFRAME® horizontal cable management system provides the most durable and versatile organized solution for the cross connect. NEXTFRAME® snap fits are secure, rugged and reliable. The assemble-to-order nature of this system also means that you pay only for the features you need as you need them. The Duct Panel has 6-pass through rings, 7-rings and a hinged cover. The Heavy Duty version has no pass-through holes. This style aesthetically pleasing, as it conceals patch cords. It can be upgraded through the use of accessories.