Middle Atlantic D2-UMS-28 2RU Universal Rack Mounting Shelf
Overview
The Middle Atlantic D2-UMS-28 is a 2-rack-unit universal mounting shelf designed to house non-rack-native equipment inside a standard 19-inch equipment rack. At 28 inches total depth and 22 inches of usable depth, the D2-UMS-28 accommodates deeper chassis — NVRs, DVRs, unmanaged switches, and similar surveillance system components that ship without rack ears. The 45 lb weight capacity handles most commercial security appliances without concern. If your deployment involves a mix of rack-native and shelf-mounted gear in the same enclosure, this shelf keeps everything secured and cable-accessible without improvised solutions.
Compatibility
Fits any standard Middle Atlantic rack enclosures and third-party rack accessories with EIA-310 19-inch rail spacing. The 22-inch usable depth and 45 lb capacity make it a practical fit for rack-mounting surveillance NVRs, network video recorders, and access control appliances that lack integrated rack-mount hardware. The four mounting points distribute load evenly across the shelf surface — useful for irregular chassis that don't center well on two points. Verify your enclosure's internal depth accommodates the 28-inch overall shelf depth before ordering; shallow-depth open-frame racks under 28 inches will not clear.
Installation Notes
The shelf mounts to standard 19-inch rack rails using the four integrated mounting points. Product weight is 22.68 lbs; account for this when calculating total rack load alongside installed equipment. The 28-inch overall depth requires an enclosure with sufficient interior clearance — measure from the front rail face to the rear of the enclosure before mounting. Usable shelf surface runs 22 inches, so equipment overhanging beyond that point is unsupported. A rack enclosure with rear cable management will pair cleanly with this shelf for any cabling that routes behind mounted appliances. Consult a surveillance system accessories guide when planning full rack layouts for multi-component security deployments.
