Middle Atlantic 2 Space Custom Rackshelf 14IN. Deep Black Anodized Finish - RSH4A2M

Middle Atlantic RSH4A2M 2U 14-Inch Deep Rack Shelf, Black Anodized Steel

Overview

The Middle Atlantic RSH4A2M is a 2U fixed rack shelf built for standard 19-inch equipment racks, offering 14 inches (356 mm) of usable depth in a black anodized steel construction. If you're staging a security head-end room, an equipment closet, or an AV rack and need a reliable surface for non-rackmount gear — NVR peripherals, unmanaged switches, small UPS units, or cable management accessories — the RSH4A2M gives you a clean, rigid platform without the bulk of a fully enclosed drawer. Explore the full Middle Atlantic rack accessories line for coordinating components.

Key Features

• 2U Form Factor (89 mm height): Two rack units means you're sacrificing minimal vertical real estate — useful when rack space is already allocated tightly across NVRs, patch panels, and power distribution. Check your rack's available U count before ordering.
• 14-Inch Usable Depth (356 mm): Accommodates mid-size equipment that doesn't fill a full 24-inch shelf. If you're placing compact network video recorders or small managed switches, verify your device's footprint clears this depth with cabling attached.
• 482.6 mm Rail-to-Rail Width: Matches the EIA-310 standard for 19-inch rack mounting — drops into any standard two-post or four-post open-frame or enclosed rack enclosure without modification.
• Steel Construction: All-steel build handles the weight of dense-chassis equipment without flex or sag — relevant when you're resting heavier appliances on the shelf rather than rack-mounting them directly.
• Black Anodized Finish: Anodized aluminum or powder-coated steel surfaces resist corrosion and match standard black rack interiors — no touch-up needed after install.
• Single-Pack Quantity: Ships as one shelf per unit. Order multiple if you're outfitting several racks in the same head-end room or IDF closet.

Integration & Compatibility

The RSH4A2M mounts in any standard 19-inch two-post or four-post rack. It pairs naturally with Middle Atlantic rack enclosures and open-frame racks. When planning a rack accessory layout, account for the 89 mm (2U) vertical clearance this shelf consumes and ensure the equipment you're resting on it doesn't exceed the shelf's depth or the rack's interior clearance.

Frequently Asked Questions

Q: What rack size does the RSH4A2M fit?

A: The RSH4A2M is 482.6 mm wide, which matches the standard 19-inch EIA-310 rack rail spacing. It fits any standard two-post or four-post 19-inch rack.

Q: How deep is the RSH4A2M shelf surface?

A: The shelf is 356 mm (14 inches) deep — suitable for mid-size non-rack-mount equipment. Verify your device's depth plus cabling clearance fits within this dimension.

Q: How many rack units does the RSH4A2M occupy?

A: It occupies 2U (89 mm of vertical rack space).

Q: What is the RSH4A2M made of?

A: Steel construction with a black anodized finish.

Q: How many shelves come in one order?

A: One shelf per pack (quantity per pack: 1).

Jerry Tildsen

The RSH4A2M comes up regularly when we're finishing out a security head-end rack and there's gear that simply doesn't have rack ears — a spare NVR, a compact PoE injector, or a small UPS that the AV contractor left on the punch list. The 14-inch (356 mm) depth is the spec I pay attention to most: it's not a full-depth shelf, so anything with a deep chassis or bulky rear connectors needs to be measured first.

Technical Highlights:

• 2U Height (89 mm): Two rack units is the minimum I'd want for a shelf that needs to sit stable under real equipment weight — single-U shelves flex. The 89 mm clearance also gives enough air gap above and below if you're stacking accessories in a dense IDF build.
• 482.6 mm Width: This is the EIA-310 standard number — no shimming, no adapter brackets. Drop it in the rail and you're done. Consistent with other Middle Atlantic rack hardware, so it seats flush in their enclosures.
• Steel Construction: Not aluminum sheet — steel means it won't bow under a 10–15 lb appliance. For anything heavier, check Middle Atlantic's rated load spec for this shelf before you commit.

Deployment Considerations:

• At 356 mm depth, this shelf is purpose-built for mid-size gear. If you're placing anything with rear cable management or a deep power supply, measure the actual installed depth including connectors — not just the chassis.
• The RSH4A2M ships as a single unit. In multi-rack deployments or when equipping several IDFs in the same project, order quantities up front — mixing in a second-source shelf mid-project usually means a finish mismatch.

The RSH4A2M is a practical fit for security head-end rooms and IDF closets where you need a rigid, no-fuss platform for non-rack-mount ancillary equipment alongside NVRs, patch panels, and PoE switches in a standard 19-inch open-frame or enclosed rack build.