Middle Atlantic MW-4FT-380CFM Integrated 4-Fan Rack Top

Overview

The MW-4FT-380CFM is an active steel fan top from Middle Atlantic's Middle Atlantic rack accessories line that mounts to compatible open-frame and enclosed racks to exhaust heat from densely loaded AV and security equipment bays. With four fans moving a combined 380 CFM at 120 VAC, it provides meaningful forced-air cooling for rack enclosures loaded with NVRs, PoE switches, and video management servers — equipment that generates sustained heat during 24/7 operation. The MW-4FT-380CFM fits across the MRK, VRK, VMRK, and WMRK rack series and is the direct answer when passive convection isn't clearing heat fast enough and you're seeing thermal throttling or unexpected reboots in your rack.

Compatibility

Designed for Middle Atlantic MRK, VRK, VMRK, and WMRK series rack enclosures. The unit spans 21.7 in. wide, matching the standard rack top footprint for these families. Confirm your rack series against Middle Atlantic's mounting matrix before ordering — this fan top is not a universal fit across all Middle Atlantic product lines. If you're building out a network video recorder or rack enclosure stack, verify the rack model designation matches one of the four supported series above.

Installation Notes

Power input is 120 VAC — a standard North American outlet. The unit is uncontrolled (no built-in thermostat or speed control), meaning fans run continuously at full output whenever powered. Factor that into noise planning for any installation in occupied spaces. Steel construction and black powder-coat finish are consistent with permanent rack deployment. At 18 lbs shipping weight, two-person handling during top-panel installation is advisable. For broader rack cooling accessories in the same ecosystem, this model pairs with Middle Atlantic's vented shelves and blanking panels to direct airflow efficiently.