Middle Atlantic AS3-22 – 3U Heavy-Duty Adjustable Rack Shelf

Product Overview

The Middle Atlantic AS3-22 adjustable rack shelf is a heavy-duty 3-space (3U) rackmount shelf built to carry equipment that standard shelves cannot. With a 300 lb weight capacity and a 4-point mounting design, it secures video decks, tower CPUs, and other deep, heavy components in any standard 19-inch rack. The front-to-rear mounting range adjusts from 19-1/2 in. to 28 in., letting integrators match the shelf to the rail depth of the rack on site.

Product Description

Most rackmount shelves are limited by a fixed depth and a two-point front-rail attachment, which makes them a poor fit for heavy or oversized gear. The AS3-22 solves both problems. Its 4-point mounting system attaches to both the front and rear rack rails, distributing the load across the frame and supporting up to 300 lb of equipment. The adjustable depth rack shelf design spans rail-to-rail distances from 19-1/2 in. up to 28 in., so a single SKU covers a wide range of equipment racks and credenza enclosures. The shelf surface itself measures 22-1/4 in. deep, providing a stable platform for tower CPUs, broadcast video decks, and non-rackmountable AV components. The vented surface promotes passive airflow around heat-producing equipment, an important consideration when shelving computers or amplifiers inside an enclosed rack. The AS3-22 ships flat in a ready-to-assemble configuration with all mounting hardware included, which reduces freight cost and simplifies stocking for integration firms. Note that this 3U heavy-duty rack shelf requires a rack with a minimum of 19-1/2 in. between front and rear rails (approximately 25 in. minimum overall rack depth). For racks, shelving, and rack accessories, browse the full Middle Atlantic lineup at Creation Networks.

Key Features

• 300 lb Weight Capacity — The heavy-duty 4-point mounting design supports up to 300 lb, far exceeding typical front-mount rack shelves.
• Adjustable Mounting Depth — Front-to-rear mounting range adjusts from 19-1/2 in. to 28 in. to fit a wide variety of rack depths.
• Deep 22-1/4 in. Shelf Surface — Provides a full-depth platform for tower CPUs, video decks, and other large components.
• Vented Shelf Surface — Perforated design allows passive airflow around heat-generating equipment in enclosed racks.
• 4-Point Rail Mounting — Attaches to both front and rear rack rails for secure, load-distributed support.
• Ready-to-Assemble Design — Ships flat with all hardware included to save shipping cost and storage space.

Technical Specifications