Vertiv GL790ES-3048-W-MSS 42U White Server Cabinet with Split Mesh Rear Door
Overview
The Vertiv GL790ES-3048-W-MSS is a 42U, 30-inch-wide by 48-inch-deep open-frame server enclosure finished in Winter White with a mesh contour front door and split mesh rear door. This specific configuration addresses a niche but real operational need: data centers and network rooms where equipment access from the rear must be split — allowing one half of the door to swing open without disturbing cable management or adjacent hardware on the other side. The Winter White finish is chosen for environments where color-coding by row or zone is a live operational practice, or where white enclosures are a facility standard for lab, healthcare, or cleanroom deployments. If you are building out a standard black-rack data hall, this is not the model — the GL790ES-3048-W-MSS (often searched as GL790ES 3048 W MSS) is purpose-specified for white-finish requirements.
This cabinet belongs to Vertiv's Vertiv rack and enclosure line, a broad family that spans multiple heights, widths, depths, and door configurations to match the physical and airflow demands of enterprise IT rooms, telecom closets, and security head-end rooms.
Key Features
- 42U Usable Height: 42U of rack space handles a fully loaded server or networking stack — enough for a dense server rack enclosure deployment mixing 1U switches, 2U servers, patch panels, and cable managers without forcing a second cabinet prematurely.
- 30-Inch Width: The 30-inch footprint threads into tighter rows than the 32-inch variant while still clearing standard 19-inch equipment plus cable management channels on both sides. Critical in data rooms where row spacing was planned around 30-inch aisles.
- 48-Inch Depth: At 48 inches front-to-back, this cabinet accommodates deep blade servers, high-density storage arrays, and dual-ended cable bundles without rear door interference. Shallower 42-inch cabinets force cable management compromises on deep equipment — this depth eliminates that constraint.
- Mesh Contour Front Door: The mesh front door allows front-to-back airflow to pass through without restriction, supporting hot-aisle/cold-aisle containment strategies. A solid door in the same position would require active perforation or cutouts — mesh gives you the airflow benefit factory-standard.
- Split Mesh Rear Door: The split configuration means each half of the rear door opens independently. In a populated rack, this lets a technician access rear ports on the top half of the cabinet — power cabling, uplink fiber, patch fields — without swinging a full-width door into an adjacent aisle or knocking into rear-mounted cable managers.
- Winter White Finish: Color differentiation in a mixed-use room (white for network, black for compute, for example) reduces mis-cabling incidents and speeds visual identification during maintenance. The Winter White finish also meets facility specifications common in healthcare IT and laboratory environments where white enclosures are a controlled-environment standard.
- Available in Multiple Heights and Widths: The GL790ES family is available in 24U, 42U, 44U, 48U, and 52U heights and in 24-inch, 30-inch, and 32-inch widths — so if this specific 42U/30-inch/48-inch combination doesn't match your rack unit count or aisle layout, a sibling model in the same line will.
Integration and Compatibility
The GL790ES-3048-W-MSS follows standard 19-inch EIA-310 rack mounting, making it compatible with virtually all rackmount network switches, servers, UPS units, patch panels, and rack power distribution units. The 48-inch depth supports deep equipment from major server and storage vendors. Pair this cabinet with a matching rack accessory set — cable managers, blanking panels, and vertical PDUs — to complete the build. For high-density thermal environments, verify that your in-row or overhead cooling capacity is sized for the watt density you plan to run in this 42U footprint; the mesh doors support airflow but cabinet-level cooling is an infrastructure-level decision separate from the enclosure itself.
Frequently Asked Questions
Q: What is the usable rack unit count of the GL790ES-3048-W-MSS?
A: This model provides 42U of usable rack space in a 30-inch-wide by 48-inch-deep enclosure.
Q: What door configuration does the GL790ES-3048-W-MSS ship with?
A: It ships with a mesh contour front door and a split mesh rear door. The split rear allows each half to open independently for easier access in populated rows.
Q: Is the GL790ES-3048-W-MSS available in black?
A: No — this specific model number is the Winter White variant. A separate model in the GL790ES family is available in black if your facility requires it.
Q: What depth equipment will this cabinet support?
A: The 48-inch cabinet depth accommodates deep rackmount servers, blade chassis, and storage arrays. Standard 19-inch EIA-310 equipment mounts on the front and rear rails.
Q: Can this cabinet be integrated into a hot-aisle/cold-aisle containment layout?
A: Yes. The mesh contour front and split mesh rear doors allow front-to-back airflow to pass through without restriction, which is compatible with hot-aisle/cold-aisle and containment architectures.
Q: Are other heights available in the GL790ES family?
A: The GL790ES line includes 24U, 44U, 48U, and 52U configurations in addition to this 42U model, and is available in 24-inch and 32-inch widths as well.
The GL790ES-3048-W-MSS comes up in quotes specifically when a project has a white-finish requirement and needs a split rear door — those two specs together narrow the field considerably. The 48-inch depth is the right call for any row that's running dual-ported servers or dense storage where rear cable bundles need clearance, and the 42U height keeps you from over-building footprint while still fitting a fully loaded compute stack.
Technical Highlights:
- Split Mesh Rear Door: Independent half-door opening in a 42U cabinet means a technician can access the top 20U of rear cabling — uplinks, power strings, fiber trunks — without pulling a full-width door into a 24-inch hot aisle or contending with floor-level cable troughs.
- 30-Inch Width: Fits standard row spacing planned around 30-inch cabinets. The 32-inch variant in the same family requires wider aisles or tighter end-of-row clearances — if your floor plan was drawn to 30-inch, this is the width to stay on.
- Mesh Contour Front and Rear: Both doors are mesh, not solid, so front-to-back airflow isn't blocked at either face. This matters if you're running containment — a solid door anywhere in the airflow path forces a workaround (cutouts, active bypass) that mesh avoids entirely.
Deployment Considerations:
- The Winter White finish is a real operational specification, not cosmetic preference — confirm your facility standard before ordering; swapping finish post-installation is not practical at scale.
- The GL790ES family spans 24U through 52U and 24-inch through 32-inch widths, so verify this exact 42U/30-inch/48-inch/white/split-rear combination matches your BOM before purchasing — adjacent model numbers differ on one or more of those parameters.
This cabinet is the right pick for healthcare IT rooms, laboratory network closets, or any white-finish facility standard where a 42U footprint with split rear access is the operational requirement — not a general-purpose black-rack data center build.
