Description

Middle Atlantic Products VSA-2744 VSA Series Heavy-Duty Telescoping Rack Shelf, 27–44 in. Adjustable Depth, 1.5 in. High, 500 lb Capacity
Condition: New, never installed. The shelf and installation hardware/instructions appear unused and are retained with the original packaging. The outer cardboard packaging is worn, creased, and somewhat damaged from storage/handling; this packaging wear does not appear to indicate installation or use of the shelf.

Description

The Middle Atlantic Products VSA-2744 is a heavy-duty telescoping rack shelf designed for installation between the front and rear rack rails of compatible 19-inch equipment racks and enclosures. Its adjustable-depth construction allows the shelf to extend from approximately 27 inches to 44 inches, making it especially useful in deep server, network, broadcast, AV, telecom, and industrial equipment racks.

Unlike a conventional front-mounted cantilever shelf, the VSA-2744 is supported at both the front and rear rack rails. This configuration provides substantially greater load capacity and stability for heavy equipment. The included instruction sheet identifies the shelf as part of the VSA Series and specifies a heavy-duty design rated for up to 500 lb.

The perforated steel platform provides extensive ventilation beneath installed electronics, helping reduce heat buildup around amplifiers, servers, UPS equipment, power supplies, processors, networking equipment, test equipment, and other rack-mounted or non-rack-mount components.

Specifications

• Manufacturer: Middle Atlantic Products
• Product Series: VSA Series
• Model: VSA-2744
• Product Type: Telescoping rack shelf / adjustable-depth rack shelf
• Rack Format: Standard 19-inch equipment rack applications
• Adjustable Depth Range: 27–44 in.
• Overall Height: Approximately 1.5 in.
• Load Capacity: Up to 500 lb
• Construction: Heavy-duty steel
• Finish: Black
• Shelf Surface: Ventilated / perforated
• Mounting: Front and rear rack rails
• Adjustment Type: Telescoping
• Installation Orientation: Standard orientation or inverted where appropriate
• Power Required: None
• Included Documentation: VSA Series installation instruction sheet
• Hardware: Installation hardware visible with the supplied unit
• UPC: 656747094958
• Box Label Date: 09-08-2012
• Manufacturer Part Number: VSA-2744

Features

• Heavy-duty 500 lb load rating
• Adjustable 27–44 inch telescoping depth
• Supports equipment from both front and rear rack rails
• Designed for deep rack and enclosure installations
• Perforated shelf surface promotes airflow
• Heavy-gauge steel construction
• Black finish suitable for professional rack installations
• Allows non-rack-mount equipment to be installed inside a standard rack
• Adjustable shelf depth accommodates varying rack geometries
• Can be mounted inverted in applications where increased usable width or clearance is beneficial
• Telescoping shelf section reaches from front rack rail to rear rack rail
• More rigid than typical front-only cantilever shelves
• Suitable for high-mass equipment
• No electrical connection or active cooling hardware required
• Useful for equipment that cannot be directly attached using standard rack ears

Product Features Identified on the Instruction Sheet

The supplied Middle Atlantic instruction documentation indicates the following key design characteristics:

• Heavy-duty construction
• Approximately 500 lb weight capacity
• Shelf may be installed upside down where additional usable width is required
• Telescoping construction allows the shelf to span front-to-rear rack rails

These characteristics make the VSA-2744 particularly useful where standard lightweight rack shelves are insufficient.

Applications

The VSA-2744 can be used in numerous professional and industrial environments, including:

• Data centers
• Server rooms
• Network closets
• Telecommunications facilities
• Broadcast studios
• Recording studios
• Audio/video equipment rooms
• Security and surveillance systems
• Commercial AV installations
• Industrial control systems
• Automation cabinets
• Test and measurement laboratories
• University and research facilities
• Government facilities
• Rack-mounted UPS installations
• Power-conditioning systems
• Professional sound systems
• Home theater equipment racks
• IT infrastructure
• OEM equipment integration

Typical Equipment Supported

The shelf is suitable for supporting equipment that does not have standard rack-mount ears or requires additional bottom support, such as:

• Servers
• UPS units
• Power supplies
• Battery backup equipment
• Network appliances
• Routers
• Switches
• Audio amplifiers
• AV receivers
• Signal processors
• Video equipment
• Test instruments
• Industrial computers
• Control-system hardware
• Power conditioners
• Storage devices
• Communication equipment

Equipment weight, center of gravity, rack construction, fastener ratings, and rail integrity should always be considered before loading the shelf to its maximum capacity.

Rack System Integration

The VSA-2744 is intended to function as part of a larger equipment rack assembly. A typical installation consists of:

19-inch equipment rack → front rack rails → VSA-2744 telescoping shelf → rear rack rails → installed electronic equipment

Because it attaches at both ends of the rack, the shelf is particularly appropriate for deeper enclosures where cantilevered shelves may flex excessively under substantial loads.

Potential rack environments include:

• Middle Atlantic floor-standing racks
• Middle Atlantic equipment enclosures
• Four-post server racks
• Four-post network racks
• Broadcast racks
• AV equipment racks
• Other compatible 19-inch racks with front and rear mounting rails spaced within the shelf’s adjustment range

Installation Considerations

Before installation, verify:

• Front-to-rear rack rail spacing falls within the 27–44 inch adjustment range
• The rack has compatible front and rear rails
• Rail mounting holes are compatible with the supplied hardware
• The rack itself can safely support the combined shelf and equipment weight
• Equipment does not exceed the shelf’s rated capacity
• Adequate ventilation remains around installed devices
• Required cable clearances remain available
• Telescoping sections are properly secured before loading

For heavy equipment, distributing the load evenly across the shelf is strongly recommended.

Advantages

• Exceptionally high capacity for a rack shelf
• Adjustable depth accommodates many four-post rack configurations
• Front-and-rear support provides superior rigidity
• Perforated construction supports passive ventilation
• Useful for equipment lacking rack ears
• Suitable for both IT and AV installations
• Allows equipment to be repositioned without replacing the entire shelf
• Mechanical design requires little maintenance
• Industrial construction is suitable for long-term infrastructure applications

Limitations

• Requires suitable front and rear rack rails
• Not intended as a simple front-only cantilever shelf
• Rack depth must fall within the adjustment range
• Maximum system capacity may be limited by the rack or mounting hardware rather than the shelf itself
• The 500 lb rating should not be interpreted as permission to exceed the rack manufacturer’s total structural load rating
• Deep equipment installations may require additional cable-management planning
• Original cardboard packaging on this unit shows storage and handling wear

Cross-Referenced Models

Related Middle Atlantic VSA Series telescoping shelf models may include versions intended for different rack-depth ranges. Relevant series references include:

• Middle Atlantic VSA-2744 — 27–44 in. telescoping shelf
• Middle Atlantic VSA Series telescoping rack shelves
• Other Middle Atlantic adjustable-depth four-post shelves with different depth ranges

Because rack depth is the critical fitment parameter, another VSA-series shelf should not be considered a direct replacement unless its minimum and maximum rail-spacing specifications match the intended rack.

Comparable Products

Comparable product types from other rack-equipment manufacturers include:

• Four-post adjustable server rack shelves
• Heavy-duty telescoping rack shelves
• 19-inch adjustable-depth equipment shelves
• Deep-rack UPS support shelves
• Heavy-duty AV rack shelves
• Sliding or fixed four-post server shelves
• Universal rack-mount equipment support trays

Comparable manufacturers may include:

• Chatsworth Products / CPI
• Hammond Manufacturing
• Tripp Lite / Eaton
• APC / Schneider Electric
• StarTech
• Great Lakes Data Racks & Cabinets
• Kendall Howard

Direct interchangeability must be verified according to rack width, rail-hole configuration, depth, load rating, and mounting hardware.

Condition Notes

This unit is particularly suitable for buyers seeking unused legacy Middle Atlantic rack hardware.

Observed/supplied condition details:

• New
• Never installed
• Shelf appears unused
• Original instruction sheet included
• Installation hardware is present as pictured
• Protective plastic is still visible
• Original Middle Atlantic Products carton included
• Outer carton has noticeable wear, creasing, compression, and storage damage
• Packaging condition should not be confused with the physical condition of the shelf itself

Common Requests:

• Middle Atlantic VSA-2744 27 to 44 inch telescoping rack shelf 500 lb
• Heavy duty adjustable depth 19 inch rack shelf for server equipment
• VSA-2744 Middle Atlantic four post rack shelf replacement
• 500 pound capacity telescoping shelf for deep equipment rack
• New old stock Middle Atlantic VSA Series adjustable rack shelf

Related

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Trademark Disclaimer

Middle Atlantic Products, VSA Series, and any other manufacturer names, model designations, logos, and trademarks referenced in this description are the property of their respective owners. They are used solely for product identification, compatibility reference, and informational purposes. No affiliation with, sponsorship by, or endorsement from the respective trademark owners is implied.