Vertical Mounting Capabilities Easily mounts vertically in racks or enclosures and occupies zero U of valuable rack space, which allows more equipment in the rack. Units that mount vertically are optimized to fit in a NetShelter enclosures. High capacity cable finger design Cable managers feature high capacity slim cable fingers to provide maximum capacity at every rackspace unit and a rigid design to decrease deflection when cables are routed in/out of the cable manager channel.