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12 Space Essex Series Multi Mount Rack, 20" Deep


The Middle Atlantic MMR-1220 is an Essex Series multi-mount rack offering 12 RU of rack space with a usable depth of 18 inches. This fully welded rack features sturdy steel construction with a sleek metallic gray finish and multiple mounting options—attach it directly to a wall or place it on a desk or floor.

With a front adjustable 10-32 threaded rack rail and a maximum weight capacity of 250 pounds, the MMR-1220 can accommodate a host of standard 19" rack gear. It provides passive ventilation via slots in the top and sides to aid in equipment cooling, and optional DC fans can be installed if you need to move more air. Additionally, the MMR-1220 is compatible with optional casters, leveling feet, locking doors, and accessory/power kits for expanded versatility.


  • Versatile, fully welded rack can be desktop-, floor- or wall-mounted
  • Multiple wall mount options provide flexibility for budgets and workflows: easy access pivot, hang bracket for mounting fully integrated rack, direct-to-wall
  • Trusted Middle Atlantic quality
  • Ideal value for entry-level AV systems
  • UL listed
  • Up to 250 lb weight capacity
  • Attractive design with sleek metallic gray finish
  • Passive ventilation designed into rack top and sides; optional quiet DC fan tops move up to 276 CFM
  • Options include casters for mobility, leveling feet for fixed installation, locking solid and plexi doors that install in seconds, and accessory and power kits/bundles
  • Ideal for installation in closets, basements, and equipment rooms
  • Standard front adjustable 10-32 threaded rack rail (rear rail option available)


    Rack Form Factor 12 RU
    Rack Depth 20" 
    Load Capacity 250 lb
    Material of Construction Plastic, Steel
    Wall Mountable Yes, with Optional Hardware
    Enclosure Design Open
    Certifications UL, as per Manufacturer
    Interior Dimensions 19 x 21 x 18"
    Exterior Dimensions 23.5 x 25.9 x 20"