Vertiv GL42UEX-80120B-MM-PL 42U Floor-Standing Server Rack Enclosure

Overview

The Vertiv GL42UEX-80120B-MM-PL is a 42U floor-standing rack enclosure from the Vertiv EX series, built to house and organize high-density IT and network infrastructure in data centers, server rooms, and enterprise equipment spaces. At 800mm wide and 1200mm deep, this enclosure provides the internal real estate to accommodate full-depth servers, storage arrays, patch panels, and power distribution units without compromise — a meaningful advantage over shallower 1000mm alternatives when deploying today's 1U and 2U servers that routinely exceed 900mm in chassis depth.

Key Features

• 42U Height: 42U of usable rack space accommodates a full server room build-out in a single enclosure — enough vertical room for compute, storage, switching, and power management in one footprint rather than spreading infrastructure across multiple shorter frames.
• 800mm Width: The 800mm wide footprint (wider than the standard 600mm) provides additional side clearance for cable routing, blanking panels, and accessories — reducing cable congestion and simplifying airflow management in dense deployments. This dimension also aligns with wider aisle and hot-aisle/cold-aisle containment configurations common in enterprise data centers.
• 1200mm Depth: A 1200mm depth ensures compatibility with the longest rack-mount equipment available, including high-density blade enclosures and storage arrays. Shallower racks (1000mm) force equipment overhangs or constrain cable dressing at the rear — the GL42UEX-80120B-MM-PL eliminates that problem for integrators specifying current-generation infrastructure.
• Floor-Standing, Freestanding Mount: Floor-standing installation means no wall attachment required — the enclosure stands independently, making it straightforward to position, reposition, or add to an existing row without structural anchoring work. This also supports raised-floor deployments where wall-mount options are impractical.
• Black Finish: The black finish is the standard for professional data center and server room environments, consistent with hot-aisle/cold-aisle visual conventions and compatible with most raised-floor and containment panel systems.
• Vertiv EX Series: The EX series is Vertiv's commercial-grade open-frame and enclosed rack line, positioned for enterprise data center, network closet, and edge deployments where structural integrity and accessory ecosystem compatibility are primary requirements. Explore the full Vertiv infrastructure catalog for compatible PDUs, cooling, and UPS systems designed for this enclosure footprint.

Integration and Compatibility

The GL42UEX-80120B-MM-PL follows standard 19-inch EIA-310 rack unit spacing, making it compatible with the full range of rack-mount equipment from any manufacturer. The 800mm x 1200mm footprint is a common data center planning dimension — most hot-aisle/cold-aisle containment systems, raised-floor tile configurations, and PDU vertical mounting arms are specified to this width. For integrators planning power distribution, Vertiv's own rack PDUs mount cleanly inside this enclosure. Pair with a compatible rack power distribution unit and structured cabling infrastructure for a complete deployment. If you're evaluating rack enclosure options for a multi-row build, review our server rack enclosures category for additional form factor and depth configurations. For structured cabling to complement this enclosure, see the structured cabling and patch panel selection.

Frequently Asked Questions

Q: What are the exact dimensions of the GL42UEX-80120B-MM-PL?

A: The GL42UEX-80120B-MM-PL measures 800mm wide x 1200mm deep x 42U in height. This is a floor-standing enclosure from Vertiv's EX series.

Q: Is this rack enclosure compatible with standard 19-inch rack-mount equipment?

A: Yes. The Vertiv EX series follows standard EIA-310 19-inch rack unit (U) spacing, making it compatible with all standard rack-mount servers, switches, patch panels, and PDUs.

Q: Why choose the 1200mm depth over a 1000mm rack?

A: Modern high-density servers, blade enclosures, and storage arrays frequently exceed 900mm in chassis depth. The 1200mm depth provides adequate clearance for rear cable management without equipment overhang, which is a common issue in shallower enclosures.

Q: Is the GL42UEX-80120B-MM-PL available with a pallet for freight shipping?

A: The GL42UEX-80120B-MM-PL model designation includes a pallet shipping configuration (as indicated by the -PL suffix), which is standard for freight delivery of full-size rack enclosures.

Q: What color is this enclosure and does it fit standard data center aesthetics?

A: The enclosure is finished in black, which is the standard color for professional data center and server room environments and aligns with hot-aisle/cold-aisle containment visual conventions.

Marty Allison

When I spec the GL42UEX-80120B-MM-PL for a data center row build, the dimension that drives the decision is the 1200mm depth — not the 42U height, which is table stakes. Full-depth chassis from major compute vendors now routinely land between 950mm and 1100mm, and once you add rear cable tray or a vertical PDU at the back, a 1000mm enclosure turns into a cable-management headache on day one. The 1200mm depth here removes that problem entirely.

Technical Highlights:

• 800mm Width: Wider than the standard 600mm frame, the 800mm footprint provides genuine side clearance for vertical cable managers and horizontal brush panels — both of which disappear in a 600mm column under any reasonable cable load.
• 42U Usable Space: At 42U, this enclosure supports a full compute stack — 10+ 2U servers, a top-of-rack switch, and a pair of vertical PDUs — without stacking a second frame. That matters in colocation environments where per-cabinet fees add up.
• Floor-Standing Configuration: Freestanding deployment means the enclosure can be positioned and repositioned on a raised floor grid without structural anchoring, which simplifies row reconfiguration during equipment refreshes.

Deployment Considerations:

• Confirm aisle width accommodates the 1200mm depth plus door swing clearance before committing to a floor plan — this dimension adds up quickly in tight rows.
• The -PL suffix in the GL42UEX-80120B-MM-PL part number indicates pallet delivery; verify your loading dock or freight elevator can handle the full assembled weight before scheduling delivery.

This enclosure is the right call for enterprise data center rows and colocation cage builds where full-depth servers and structured rear cable management are non-negotiable — not for network closets or edge deployments where a shallower, lighter frame is the better fit.