Middle Atlantic VMRK-54 54U Floor-Standing AV Rack with Rear Door
Overview
The Middle Atlantic VMRK-54 is a 54-rack-unit, 31.4-inch-deep floor-standing enclosure built for demanding AV, security, and IT infrastructure deployments where both structural integrity and equipment density matter. At 94.5 inches of usable height and a UL-listed 2,500 lb load capacity, the VMRK-54 handles fully populated NVR bays, dense patch fields, and heavy surveillance appliances without flex. The 10-32 threaded rail system is the standard for commercial rack enclosures, accepting virtually every EIA-compliant 1U through 10U device without adapters. TAA compliance makes it eligible for federal, state, and education procurement without sourcing exceptions. Manufactured in the USA.
Compatibility
The VMRK-54 is designed for integration with network video recorders, managed PoE switches, patch panels, UPS units, and AV processing equipment that conforms to the EIA-310-D standard (10-32 threaded, 19-inch rail spacing). The gangable design allows multiple VMRK enclosures to be bolted side-by-side — critical in larger operations centers or NOC buildouts where rack grouping reduces footprint and simplifies cable management. The rear door provides clearance and protection for cable egress on high-density deployments. Compatible with standard Middle Atlantic rack accessories including shelves, blanks, and mounting hardware designed for the VMRK family. Seismic rating to ASCE 7-10 makes this enclosure compliant with California OSHPD, federal facility, and data center seismic requirements — confirm local code requirements before specifying in Zone 4 seismic areas. Pair with a UPS or PDU rated to match the enclosure's load to take full advantage of the 10,000 lb floor weight capacity.
Installation Notes
Overall footprint is 22 inches wide × 31.4 inches deep × 100.64 inches tall — verify ceiling clearance before delivery, particularly in finished server rooms with drop ceilings. Usable rack depth is 29.29 inches, which accommodates most 2-post and 4-post rack-mountable equipment. The 10,000 lb weight capacity refers to the floor load rating, not the equipment load; UL-listed equipment load is 2,500 lbs. Drop-ship only — coordinate delivery access for a 100+ inch tall enclosure. Level the unit on the installation surface before loading equipment; do not install on uneven flooring without leveling feet adjustment.
