44 RU MRK Series 22 Inch Wide Pre-Configured Rack, 31 Inches Deep with Side Panel
44 RU pre-configured AV rack, 31" deep, seismic rated with side panel and rear door
The Middle Atlantic MRK-4431-AV is a pre-configured AV rack engineered for heavy-duty performance in professional environments. This 44 RU floor-standing enclosure features a 31 in (78.7 cm) depth and a 23.25 in (59.1 cm) width, providing ample space for complex system integrations. Designed as a rugged workhorse for large-scale multi-bay projects, this rack is seismic rated with an ASCE 7-10 rating and a seismic load capacity of 1050 lbs (476.3 kg). It is UL listed with a total UL load capacity of 2500 lbs (1,134 kg). The unit features fully welded construction and includes a standard configurable rear door and side panel. For cable management, the rack utilizes standard front and rear adjustable 10-32 threaded rackrails with numbered spaces, alongside multiple lacing points and slotted rail brackets for maximum flexibility during installation.
Specifications are supplied by the manufacturer. For complete details, check the Resources section.Key features
Specifications
Main specifications 8
| CFM | 550 |
| Depth | 31 in (78.7 cm) |
| Height | 83.13 in (211.2 cm) |
| Panel Width | 19 in (48.3 cm) |
| Rack Units | 44 RU |
| Shipping Weight | 268 lbs (121.6 kg) |
| UL Load Capacity | 2500 lbs (1,134 kg) |
| Usable Depth | 29 in (73.7 cm) |
All other specifications 14
| Usable Height | 77.13 in (195.9 cm) |
| Width | 23.25 in (59.1 cm) |
| Federal Ops Country of Origin | USA |
| Gangable | No |
| Product Configuration | Pre-Configured for Pro AV |
| Rack Rail Type | 10-32 |
| Rack Type | Pre-Configured |
| Rear Door | Yes |
| Seismic Rated | Yes |
| Side Panel | Yes |
| UPC | 656747095238 |
| ASCE Number | 7-10 |
| Certifications | ASCEUL Listed |
| Seismic Load Capacity | 1050 lbs (476.3 kg) |
Resources
You'll need these with it
PD Slim High Density Vertical Power Strip, 24 Outlet, 20A
PD-2420SC-NS$330.30
Rackmount Power, 9 Outlet, 15A, Basic Surge Protection - 9 ft Cord
PD-915R$223.20
44 RU Vented Front Door for ERK, MRK and WRK Racks, 64% Open
LVFD-44$792.00
Select Series PDU with RackLink™, 2 Outlet
RLNK-215$429.30
44 RU Lace Strip 4.75 Inches Wide with Tie Posts - 6 Piece
LACE-44-OWP$400.50
100 CFM Fan Panel with Remote Thermistor, 27dB
UQFP-4RT$410.40
1 RU BlowerPanel, 100 CFM, 32dB
QBP-2$581.40
2 RU Select Series UPS Backup Power, 2200VA
UPS-S2200R$1,935.00
44 RU Side Panels for 31-32 Inch Deep MRK, WRK or VRK Racks
SPN-44-312$1,111.50
44 RU Vented Front Door for ERK, MRK and WRK Racks
VFD-44$694.80
44 RU Solid Front Door for ERK, MRK and WRK Racks
FD-44$440.10
Select Series PDT Low Profile Vertical Power Strip with Dual Circuit, 10 Outlet, 20A Hardwired
PDT-2X520$418.50
Questions about this part
Is the MRK-4431-AV suitable for seismic environments?
Yes, this rack is seismic rated with an ASCE 7-10 rating and a seismic load capacity of 1050 lbs (476.3 kg).
What are the usable dimensions inside the MRK-4431-AV?
The rack provides a usable height of 77.13 in (195.9 cm) and a usable depth of 29 in (73.7 cm).
Can I add extra cooling to this rack?
Yes, compatible cooling options include the UQFP-4RT 100 CFM fan panel and the QBP-2 1 RU blower panel.
What is the difference between the MRK and BGR series?
While the MRK is a rugged, seismic-rated workhorse, the BGR Series offers more RU options, higher weight capacities, and Forward and Lever Lock™ compatibility for faster installation.
What documentation is available for submittals?
Technical specifications are available via the MRK Series 19" Gangable Enclosure A&E Specification Sheet and CAD technical drawings.