Middle Atlantic WMRK-4242SVR-AB – 42U 42D Server Rack Add-a-Bay

Product Overview

The Middle Atlantic WMRK-4242SVR-AB is a 42U, 42-inch deep server rack Add-a-Bay unit built for IT and data center environments. Designed to gang directly to an existing WMRK Series server rack, it expands usable rack capacity without requiring an additional standalone enclosure or consuming additional floor footprint. The 42-inch internal depth makes it suitable for full-depth servers, high-density network switches, and other IT infrastructure equipment.

Product Description

The WMRK-4242SVR-AB provides 42 rack units of additional mounting space when attached to a WMRK Series host rack in a gangable configuration. At 42 inches of internal depth, it matches the full depth of most enterprise servers, storage arrays, and core networking equipment, eliminating the need for extension rails or adapter kits in most deployments. The Add-a-Bay design means the unit integrates mechanically and aesthetically with its host rack, sharing structural support and presenting a unified enclosure to the room.

Like other WMRK Series components, this unit uses standard 19-inch EIA mounting rails with 5/8-inch hole spacing, ensuring compatibility with the full range of 1U through 42U rackmount equipment from any manufacturer. Cable pass-throughs and rear access panels are designed to work with horizontal and vertical cable management solutions. The WMRK-4242SVR-AB is appropriate for new installations planning for growth and for existing rack environments that have exhausted primary rack capacity.

This product is intended for use by IT professionals, data center managers, and professional AV/IT integrators. It ships as an assembly kit and is designed for permanent installation in temperature-controlled indoor environments. Creation Networks provides pre-sales engineering support and installation guidance for WMRK Series deployments.

Key Features

• 42U Rack Height — Full-height server rack capacity in an Add-a-Bay form factor.
• 42-Inch Internal Depth — Accommodates full-depth enterprise servers and storage systems without extension hardware.
• Gangable WMRK Series Design — Attaches to the primary WMRK Series rack to expand the system without additional floor space.
• Standard 19-Inch EIA Rails — Universal compatibility with all standard rackmount IT and AV equipment.
• 5/8-Inch Rail Hole Spacing — Industry-standard spacing for secure, toolless nut and cage nut installation.
• Server-Optimized Build — Depth and clearances sized for data center and IT server room use cases.
• Unified System Appearance — Matches host WMRK rack aesthetics for a professional, integrated enclosure presentation.
• Front and Rear Access — Designed to support structured cabling, patch management, and equipment maintenance.

Typical Applications

• Enterprise server room and data center rack capacity expansion
• IT closets and network operations centers with WMRK Series primary racks
• Co-location facilities requiring incremental rack growth without new floor space allocation
• AV-over-IP infrastructure deployments mixing server and AV equipment in a shared rack system
• Government and higher education IT infrastructure projects

Technical Specifications

Frequently Asked Questions

Q: What is the difference between a WMRK and MRK rack?

A: The WMRK (Welded Modular Rack Kit) series uses a welded frame construction for increased rigidity, making it better suited for heavy IT server loads. The MRK series is a modular bolt-together design typically preferred in AV installations.

Q: Does the WMRK-4242SVR-AB require a specific WMRK host rack model?

A: Yes, it is designed to gang to WMRK Series host racks. Consult the Middle Atlantic compatibility guide or contact creationnetworks.net to confirm compatibility with your specific primary rack.

Q: Can this Add-a-Bay support heavy server equipment?

A: The welded WMRK frame construction is designed for IT server environments. Verify the load rating in the product documentation and ensure the host rack supports the combined load of both units.

Q: Is 42-inch depth adequate for all enterprise servers?

A: The majority of 1U–4U rack-mounted servers ship in depths of 28–32 inches. 42 inches provides ample clearance for even the deepest configurations plus rear cable management space.

Q: How does the gangable attachment work?

A: The Add-a-Bay bolts to the side of the host rack using the provided hardware, sharing the structural integrity of the main enclosure and presenting as a continuous rack system.

Q: Where can I purchase the WMRK-4242SVR-AB?

A: Available through creationnetworks.net. Contact the team for volume pricing and project support.