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Key Features and Benefits
- 14-gauge steel construction supports up to 275 lb (125 kg), providing heavy-duty support for servers, chassis, and non-rackmount equipment.
- Movable side brackets allow mounting inside or outside the rack at four different depths for flexible equipment support.
- Designed primarily for open relay racks, while also supporting panel-mounted rack applications.
- Available in 16 in and 20 in depths to support a wide range of equipment sizes.
- Available in 19 in rack mounting width only for standard EIA rack installations.
- Adjustable mounting configuration improves load distribution and reduces stress on rack rails.
- Knockdown design ships unassembled for easier handling and shipping protection.
- Manufactured in North America, ensuring consistent quality and production standards.
- TAA-compliant, manufactured in North America within an ISO 9001 certified facility.
- Black powder coat finish (GREENGUARD, TSCA, RoHS compliant) supports environmental and durability requirements.
The DNRMA Series adjustable rack shelves provide flexible heavy-duty equipment support for standard 19-inch rack systems. Designed with movable side brackets and adjustable mounting positions, these shelves accommodate varying equipment depths while improving load distribution across rack rails.
With a 275 lb load capacity and durable 14-gauge steel construction, the DNRMA Series is ideal for supporting servers, chassis, and non-rackmount equipment in open relay racks and other demanding rack environments.
Where the DNRMA Series Works Best
- Data centers and IT infrastructure.
- Network and telecom installations.
- Industrial and control system environments.
- High-density rack deployments.
- Installations with varying equipment depths.
Best Applications for the DNRMA Series
- Supporting servers and chassis with varying depths.
- Providing adjustable support for mixed equipment environments.
- Improving load distribution across rack mounting points.
- Supporting non-rackmount equipment with flexible positioning.
- Adapting racks to accommodate non-standard equipment sizes.
When Another Product May Be a Better Choice
- When you need a fixed support angle for consistent depth applications, consider our RAAB Series.
- When you need a center-mount solution for 2-post racks, consider our DNDM Series.
- When you need a depth adapter for balancing load in 2-post racks, consider our RDAB Series.
- When you need a simple rear support solution, consider our BRS Series.
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Part Details
Click Part No, below, for details (e.g., Product drawings, assembly instructions, ship weight)
Units shown: inch. Switch units to: mm
| Part No. | Mounting | Overall | Rack | Mounting |
|---|---|---|---|---|
| Width | Depth | Units | Height | |
| DNRMA1916BK1 | 19.00 | 16.00 | 3U | 5.25 |
| DNRMA1920BK1 | 19.00 | 20.00 | 3U | 5.25 |
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Data subject to change without notice.
Tags: adjustable rack shelf, 19 inch rack shelf, heavy duty rack shelf, 2 post rack shelf, adjustable depth shelf, rack equipment shelf, server rack shelf

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