WR Series/ Wall Rack Boxes 2 RMU and 4 RMU by Great
Wall Rack Boxes Allow The Mounting of Switches and Sound Equipment when Space
is Limited. The Boxes Feature 19" EIA 310-D Compliant Mounting, #10-32 Threaded
Mounting Holes, and Three Position Adjustable Rails. Accessing Equipment is
Convenient; a Removable Cover and Keyhole Wall Mounting Allows for Left, Right,
or Vertical Equipment Orientation.