This opening cover can be mounted on our RM-5XX series wall mount cabinets. It is used to feed cables from top cover and bottom panel of the cabinet. The brush style protects the cabinet from dirt and dust. Physical Characteristics Color Silver Cable Management Type Knockout Material Aluminum Width 9.75 inches [24.8 cm] Number of Mounting Holes 2 Mounting Hardware Included Compatible Cabinets RM-501-6U Wall Mount Cabinet 6U x 19.5" Usable Depth, Glass Door – Black RM-501-9U Wall Mount Cabinet 9U x 19.5" Usable Depth, Glass Door – Black RM-501-12U Wall Mount Cabinet 12U x 19.5" Usable Depth, Glass Door – Black RM-501-15U Wall Mount Cabinet 15U x 19.5" Usable Depth, Glass Door – Black RM-511-6U Wall Mount Cabinet 6U x 23" Usable Depth, Glass Door – Black RM-511-9U Wall Mount Cabinet 9U x 23" Usable Depth, Glass Door – Black RM-511-12U Wall Mount Cabinet 12U x 23" Usable Depth, Glass Door – Black RM-511-15U Wall Mount Cabinet 15U x 23" Usable Depth, Glass Door – Black RM-511-22U Wall Mount Cabinet 22U x 23" Usable Depth, Glass Door – Black RM-551-9U Wall Mount Swing-Out Cabinet 9U x 18.5" Usable Depth – Black RM-551-12U Wall Mount Swing-Out Cabinet 12U x 18.5" Usable Depth – Black RM-551-15U Wall Mount Swing-Out Cabinet 15U x 18.5" Usable Depth – Black Approvals RoHS Compliant Reach Compliant Packaging Information Package Quantity 1 Mounting Hardware 2 – Screws Product Weight 0.12 lbs [0.09kg]