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Middle Atlantic HCM2D 2 RU D Ring Horizontal Cable Manager — main product image
Middle Atlantic

Middle Atlantic HCM2D 2 RU D Ring Horizontal Cable Manager

Two rack units of D-ring cable management that keeps patch cords routed cleanly and bend radius maintained across up to 240 Cat5e cables.

$86.00*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Middle Atlantic HCM2D is a 2 RU horizontal cable manager built for structured cabling installations where patch cord organization, airflow, and future serviceability are engineering requirements rather than afterthoughts. Its D-ring style — open loops spaced across the panel face — guides patch cords horizontally while maintaining the bend radius specified for Cat5e and similar cable types. The 50 percent fill rate recommendation of up to 240 Cat5e cables isn't an arbitrary number; it's an installation best practice that preserves cable geometry, prevents jacket stress, and keeps the channel open for inevitable adds and changes without a full re-pull. The flat black powder coat finish is both corrosion-resistant and rack-appropriate for any standard 19-inch rack environment.

This manager is built for structured media closets, network equipment rooms, and AV rack installations where a dense patch field needs to be routed cleanly to adjacent switches or audio-visual equipment. IT administrators and AV integrators will find the D-ring format particularly useful during live rack reconfigurations — individual cords can be rerouted laterally without the threading overhead of a finger duct. Mounting flexibility covers both standard rack rails and wall-mount enclosures, making the HCM2D useful across a range of installation footprints. It is a component that earns its place through operational reliability rather than feature complexity.

Key Features

2 Ru

3.5

Accommodates up to 240 cat5e cables using the recommended 50 percent fill rate

Item Package Weight: 3.0 pounds

Specifications

Rack Units (RU)
2
Height
3.5 inches
Maximum Cable Capacity (Cat5e)
240 (at 50% fill rate)
Item Package Weight
3.0 pounds

Pros & Cons

👍 Pros

  • The D-ring design allows cables to be added, removed, or rerouted at any point without disturbing adjacent bundles — critical for racks that undergo frequent MACs (moves, adds, changes).
  • D-ring design allows individual patch cords to be added, removed, or rerouted without disturbing adjacent cables — critical for MACs (moves, adds, changes) in live racks.
  • At the recommended 50 percent fill rate, the HCM2D handles up to 240 Cat5e cables across its 2 RU span, making it appropriately sized for high-density patch panel installations.
  • A 240-cable Cat5e capacity at 50% fill rate gives substantial headroom for high-density patch environments without requiring multiple managers per rack section.
  • The 2U form factor provides more vertical D-ring depth than 1U alternatives, allowing larger cable bundle diameters to maintain proper bend radius.
  • Flat black powder coat finish resists corrosion and provides a professional, consistent aesthetic that matches standard rack equipment without painting or treatment.
  • Dual mounting compatibility — rack rail or wall — gives this manager deployment flexibility across both full rack frames and wall-mounted structured wiring enclosures.
  • Flat black powder coat finish matches standard EIA rack aesthetics and is durable against cable jacket abrasion during maintenance pulls.
  • Rack rail or wall mounting versatility makes it usable in both full rack enclosures and open-frame or wall-mount deployments.
  • At 3 pounds, the HCM2D adds negligible load to a rack, preserving weight budget for active equipment like switches, patch panels, and UPS units.

👎 Cons

  • The 2U height occupies twice the rack real estate of 1U cable managers — in density-critical racks where every unit is allocated, this is a meaningful cost.
  • The HCM2D provides horizontal cable management only — vertical cable management between rack sections requires separate Middle Atlantic or third-party vertical managers, adding cost and rack planning complexity.
  • D-ring openings, while flexible, do not provide the continuous bend radius protection of a closed finger duct — cables with heavy jacket materials or tight slack loops may press against D-ring edges over time.
  • D-ring managers provide no top cover or routing channel, meaning cable bundles are exposed and can shift during aggressive cable pulls in dense environments.
  • At 3.0 pounds, the HCM2D adds non-trivial weight to rack sections that are already near floor load limits in high-density data cabinet rows.
  • At 2 RU, this manager consumes rack space that may be at a premium in smaller 12U or 18U enclosures where every unit counts.
  • No integrated cable tie anchor points are specified — securing bundled runs within the D-rings requires separate hook-and-loop or cable tie accessories.
  • No integrated Velcro straps or cable tie-off points are specified — securing cable bundles within the rings requires separate cable ties or straps.
  • The open D-ring design provides no strain relief for individual patch cord connections — cables can migrate out of the rings if not secured during rack moves.
  • The unit is passive with no labeling provisions built in — cable identification relies entirely on patch cord color coding or externally applied labels, which is an additional workflow step in large deployments.

Frequently Asked Questions

Middle Atlantic rates the HCM2D to accommodate up to 240 Cat5e cables using the recommended 50% fill rate. Exceeding that fill rate compresses cable bundles and can compromise bend radius compliance, which affects signal integrity in high-density patch environments.
2 RU (rack units) means this manager occupies 3.5 inches of vertical rack space. When planning rack layout, account for this height above or below your patch panels — the HCM2D is typically mounted immediately adjacent to the patch panel it serves.
At the recommended 50 percent fill rate, the HCM2D accommodates up to 240 Cat5e cables. This is an engineering best-practice limit — exceeding it risks reducing airflow, increasing cable stress, and making future adds/moves/changes significantly more difficult.
D-ring managers like the HCM2D use raised loops that hold cables in organized bundles while allowing cables to be added or removed from any point along the manager without disturbing adjacent runs. Lacing bars require cables to be tied in, making mid-run changes more disruptive. D-rings are the preferred choice for patch-heavy environments where moves, adds, and changes are frequent.
Yes — the HCM2D is designed for rack rail or wall mounting in standard configurations. It occupies 2 rack units (3.5 inches of vertical space) in a 19-inch rack.
D-rings are open loops that guide cables while allowing easy lateral insertion without threading from one end. Unlike solid finger ducts, D-rings let you add or remove individual patch cords without disturbing adjacent runs — a meaningful advantage in active racks.
Middle Atlantic specifies both rack rail and wall mounting as supported options, giving it flexibility for smaller installations or structured media closets that don't use a full rack frame.
The flat black powder coat finish on the HCM2D is a standard data center rack finish — durable against cable jacket abrasion and resistant to chipping under normal rack maintenance conditions. It also matches the finish of most Middle Atlantic and standard EIA rack enclosures.
The HCM2D is designed to be used in any position within a rack — above, below, or between active equipment. Standard practice is to install a 1U or 2U cable manager between every 1–2U of patch panels to manage horizontal cord runs, though actual placement depends on rack design and cable density.
No. The powder coat finish on the HCM2D is applied for corrosion resistance and aesthetics — it does not increase friction against cable jackets. The D-rings themselves are smooth, which protects cable jackets during routing and future reconfiguration.

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