• Fully welded construction, open sides
• UL Listed in the US and Canada
• Fully welded construction provides:
  Static load capacity: 10,000 lbs.
  UL Listed load capacity: 2,500 lbs.
  Seismic Certified load capacity: 1,050 lbs.
• Seismic certified (UBC 1997 & CBC 1998 Zone 4; IBC 2000, IBC 2003, ASCE 7 - 02, NFPA 5000 Seismic Use Group III) for protecting 1050 lbs. of essential equipment when used in conjunction with our MRK-Z4 brackets
• OSHPD approved for fixed equipment anchorage in California healthcare facilities
• Slim 22" OD width
• 1/2", 3/4", 1" and 1-1/2" electrical knockouts found on removable split rear plates, top knockout plate additionally includes UHF/VHF Antenna knockouts
• Available in 4 depths: 26.5", 31.5", 36" & 42"
• 2 pairs of wider rackrail provide more interior room
• Laser-cut 1/8" thick internal steel braces for strength
• 14-gauge steel tops & bottoms, 16-gauge seamless steel sides
• Grounding and bonding stud installed in base
• Configurable open top accepts a number of top options
• Keylocked solid rear door standard
• Finished in a durable black textured powder coat
• Configured Audio/Video Enclosure includes
• Integrated Fan top with proportional speed Fan controller
• Configurable rear door with bottom vent, solid locking front door
• 3-1/4" wide vertical lacer strip
• Six horizontal lacer bar
• Twelve 8" Velcro cable management straps
• Thin power strip, 20 Amp, 20 outlet with cord
• Leveling feet
• 100 qty. 10-32 mounting hardware
• Side panels optional
• Ganging hardware optional for multi-bay installations

Middle Atlantic MRK-4431-AV Specifications:

• Racking Height: 77" (44 Space)
• Overall Height: 81-1/8"
• Description: 31-1/2" Outside Depth (29" Useable) with side panels