Middle Atlantic RSH4A9X - 9U Rackmount Enclosure 17.5"D

Product Overview

The Middle Atlantic RSH4A9X is a 9U custom-depth anodized aluminum rackmount enclosure with a 17.5-inch internal depth, part of the RSH4A series designed for AV and IT equipment installations requiring a professional, durable rack solution in a compact form factor. The RSH4A series uses anodized aluminum construction throughout, delivering corrosion resistance, light weight relative to steel alternatives, and a finished appearance suitable for exposed or semi-exposed installations. At 9U, the RSH4A9X provides enough rack space for a mid-scale equipment deployment in conference rooms, control rooms, and server alcoves. The 17.5-inch depth (X suffix) accommodates a wide range of standard AV and IT components that exceed the capacity of shallower RSH4A variants.

Product Description

The RSH4A series from Middle Atlantic is a purpose-built rackmount enclosure platform constructed from anodized aluminum, offering a combination of structural integrity and corrosion resistance that makes it appropriate for demanding AV and IT installation environments. The RSH4A9X specifically delivers 9U of usable rack space at a 17.5-inch depth, striking a balance between equipment capacity and physical footprint that suits mid-size AV systems and IT equipment rooms alike. The anodized aluminum finish is applied to all structural surfaces, providing a consistent, professional appearance while protecting the enclosure from oxidation and surface wear over the life of the installation. Rack rails are punched to the EIA-310 standard, ensuring compatibility with all standard 19-inch rack-mount equipment. The 17.5-inch internal depth (indicated by the X suffix in the RSH4A naming convention) accommodates processors, amplifiers, routers, patch panels, and other AV/IT components that would not fit in the shallower S (11.5") or M (14") variants. The enclosure is designed for floor or wall installation depending on the mounting hardware selected, providing flexibility across installation types. Build quality reflects Middle Atlantic's standards for professional AV and IT integration, with tight dimensional tolerances that ensure rack unit alignment is accurate across the full 9U height. For integrators who regularly specify the RSH4A system, the 9X variant is the correct choice when equipment depth requirements exceed 14 inches but do not justify the larger 20.5-inch XX variant.

Key Features

• 9U Capacity — Provides rack space for mid-scale AV and IT equipment deployments.
• 17.5" Internal Depth (X) — Accommodates components that exceed the capacity of S and M depth variants.
• Anodized Aluminum Construction — Corrosion-resistant, lightweight, and professionally finished.
• EIA-310 Rail Pattern — Compatible with all standard 19-inch rack-mount equipment.
• RSH4A Series — Part of Middle Atlantic's custom-depth rackmount enclosure platform.
• Floor or Wall Mount — Flexible installation options with appropriate mounting hardware.
• Tight Dimensional Tolerances — Accurate rack unit alignment across the full 9U height.

Technical Specifications