PTRK-2126 Rack Spaces: 21U Spaces, Features: None Features: -Heavy-duty commercial grade locking casters and spring-loaded recessed side handles facilitate rack transport.-Keylocked front and rear doors standard for advanced security.-Slots incorporated into bottom of rack for cable strain relief and mounting of boxes.-Standard front adjustable 11-gauge, 10-32 threaded rackrail with smooth laser cut cable openings and numbered rackspace increments speed equipment mounting.-Also available with graphite-marbled laminate top and plexi front door. Construction: -Ruggedly welded 16-gauge steel construction and 1/8" thick laser cut corner braces provide a robust 500 lb. weight capacity. Color/Finish: -Finished in a durable black textured powder coat.