Description
Middle Atlantic MRK Series Rack, 44 RU, 31"D, Cage Nut
Meet the MRK-4431PRO from Middle Atlantic’s MRK Series—a rugged, space-saving rack designed to perform like a workhorse in demanding IT environments. Built for installers tackling large-scale multi-bay projects, this enclosure combines durable construction with intelligent design features that streamline deployment, serviceability, and long-term reliability. Its seismic-certified rating provides peace of mind in challenging locations, while the 44U capacity and generous 31" depth support high-density equipment and complex cabling. The MRK Series is crafted to endure the daily wear, relocation, and heavy loads typical in professional installations, making it a trusted choice for data centers, broadcast suites, and large IT rooms alike. With standard cage nuts and compatible 19" equipment, this rack is ready to integrate into existing footprints, deliver consistent alignment, and help projects stay on schedule from build-out to hand-off. From initial layout to final punch-down, the MRK-4431PRO is designed to simplify installation, maximize usable space, and provide dependable performance over the long term.
- 44U rack capacity for high-density equipment and future growth
- 31" (approx. 79 cm) depth to accommodate long-depth servers, power distribution, and cable management
- Rugged all-steel construction with reinforced joints for reliable, long-term service
- Seismic-certified to meet broad installation requirements and protect critical IT gear
- Cage nut kit included for quick mounting of 19" equipment and rapid deployment
Technical Details of Middle Atlantic MRK Series Rack
- Model: MRK-4431PRO
- U Height: 44U
- Depth: 31 inches (79 cm)
- Construction: Heavy-gauge steel with reinforced frame for durability
- Mounting: Standard 19" equipment mounting rails compatible with most IT gear
- Hardware: Cage nuts included to simplify rack mounting and alignment
- Seismic Certification: Designed to meet applicable seismic performance requirements for reliable operation
how to install Middle Atlantic MRK Series Rack
Prepare the installation site by confirming floor levelness, load capacity, and adequate space for 44U of gear plus accessibility for maintenance. Begin by inspecting the MRK-4431PRO for any transit damage and ensuring you have all required mounting rails, cage nuts, screws, and accessories. Position the rack in your designated footprint, ensuring there is clearance for front and rear door access and for cable management paths. Install the vertical mounting rails if they are not already attached, align them to the frame, and secure them according to the manufacturer’s guidelines. Use the included cage nuts to secure your 19" equipment, starting with the heaviest components at the bottom to lower center of gravity and optimize airflow. Route power, data, and auxiliary cables through the rack’s designated channels or accessory cable management features to minimize turbulence and airflow impedance. Finally, verify door security, ensure proper grounding, and confirm seismic-rated fasteners are fully engaged if required by your installation standards. Regularly inspect mounting hardware and cable ties as part of routine maintenance to preserve performance and safety over time.
Frequently asked questions
Q: What is the MRK-4431PRO?
A: The MRK-4431PRO is a 44U, 31" deep server/rack enclosure from Middle Atlantic’s MRK Series, built for heavy-duty, multi-bay installations with seismic-certified performance.
Q: Does it include cage nuts?
A: Yes. The MRK-4431PRO ships with a cage nut kit to simplify mounting of standard 19" equipment.
Q: Is the MRK Series seismic-certified?
A: Yes. The MRK Series is designed with seismic considerations in mind to support reliability in a variety of installation environments.
Q: What equipment is compatible with this rack?
A: It is designed for standard 19" rack-mounted equipment. Ensure your devices' mounting depth and weight are within the rack’s specifications and that you follow proper mounting and grounding guidelines.
Q: How do I plan for airflow and cable management?
A: Plan a layout that prioritizes front-to-back airflow, use vented doors if available, and route cables through dedicated channels or accessories to minimize obstruction to cooling pathways. Regularly review cable management strategies during expansion to maintain optimal performance.
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