Tripp Lite?s SR2POST 2-Post SmartRack Open Frame Rack is an economical way to accommodate 45U of rack space for 19-inch rack mount applications where space is at a premium. Its heavy-duty, aluminum construction can safely support 362 kgs (800 lbs) of rackmount equipment. The black, textured power coat finish makes it resistant to scratching while giving it a classic, attractive appearance. The SR2POST is easy to install due to a self-squaring design combined with 12-24 threaded and numbered mounting holes, and bolt down provisions. Only standard hand tools are required for installation (9/16" wrench and 9/16" socket/ratchet). Multiple units can be bolted together side by side for easy expansion or customization when required.