Vertiv GL790ES-3042-W-MSS 42U 30x42in White Open-Frame Server Cabinet
Overview
The GL790ES-3042-W-MSS is a 42U, 30-inch-wide by 42-inch-deep server and network equipment cabinet finished in Winter White — the model to specify when rack aesthetics matter alongside function, such as in open-office server rooms, structured cabling closets, or light-colored data center environments. The split mesh rear door design gives technicians fast access to rear-mounted equipment in tight aisles without swinging a full-height panel into adjacent racks. If you are sourcing for a standard 42U footprint but need a white finish or the split-rear access pattern, the GL790ES-3042-W-MSS (often searched as GL790ES 3042 W MSS) hits that specification directly.
Key Features
- 42U Usable Height: The 42U form factor accommodates a full complement of 1U switches, patch panels, and servers — the industry-standard count that keeps equipment density high without requiring custom rail kits or extended mounting accessories in most deployments.
- 30-Inch Width: At 30 inches, this cabinet is wider than the narrow 24-inch option in the same family, giving you clearance for wider blanking panels, structured cabling channels, and side-by-side vertical PDUs without crowding the rails.
- 42-Inch Depth: A 42-inch depth comfortably houses most 1U to 4U servers and deep-body switches without rear-door interference. Shallower 24-inch cabinets would leave high-density compute hardware partially unsupported; this depth eliminates that issue.
- Split Mesh Rear Door: The split rear configuration divides the rear panel into upper and lower halves. In dense or narrow-aisle rows, you open only the half you need — reducing swing radius, protecting adjacent equipment, and keeping hot-aisle containment curtains intact during maintenance windows.
- Mesh Contour Front Door: The front mesh door supports passive airflow from front-to-rear cooling architectures. Equipment intakes draw cold air directly through the mesh rather than recirculating warm exhaust, which matters when you are running high-wattage compute or switching equipment without supplemental in-row cooling.
- Winter White Finish: The Winter White color option integrates cleanly into light-colored facilities, open office server rooms, or environments where black cabinets contrast poorly with the surrounding build-out. It is a standard finish in the Vertiv cabinet line — not a custom order — so replacement doors and accessories are sourced without lead-time delays.
- Multi-Size Family: The GL790ES family spans heights from 24U to 52U and widths from 24 to 32 inches, with 42-inch and 48-inch depth options. This means accessories, rails, and power distribution units transfer across sizes as your capacity needs change — useful when you are standardizing on one cabinet platform across multiple closets or rows.
Integration and Compatibility
The GL790ES-3042-W-MSS follows standard EIA-310 rack unit spacing, making it compatible with rail kits, PDUs, cable managers, and blanking panels from any manufacturer that adheres to that standard. The 30-inch width accommodates standard 19-inch equipment on adjustable rails with room for vertical cable management on both sides. For structured cabling installations, the 42-inch depth leaves adequate rear clearance for patch panels and keystone modules mounted in the front while routing horizontal runs toward rear cable managers. Pair with a Vertiv rack PDU or a compatible third-party unit for clean power distribution within the enclosure.
Frequently Asked Questions
Q: What door configuration does the GL790ES-3042-W-MSS ship with?
A: It ships with a mesh contour front door and a split mesh rear door. The split rear allows independent upper and lower panel access, which reduces swing clearance requirements in tight aisles.
Q: Is the GL790ES-3042-W-MSS available in black?
A: The GL790ES family is available in both Black and Winter White. The GL790ES-3042-W-MSS designates the Winter White finish specifically. A black equivalent is available in the same family.
Q: What rack heights are available in the GL790ES family?
A: The family spans 24U, 42U, 44U, 48U, and 52U heights, with widths of 24, 30, and 32 inches and depths of 42 or 48 inches.
Q: Does the 30-inch width support standard 19-inch rack equipment?
A: Yes. Standard 19-inch EIA-310 equipment mounts on the internal rails. The 30-inch outer width provides additional clearance on either side of the rails for vertical cable management and PDU mounting.
Q: Is the split rear door sold separately, or is it included?
A: The split mesh rear door is part of the GL790ES-3042-W-MSS configuration as shipped. Verify with your order confirmation if door accessories or additional panels are required.
The GL790ES-3042-W-MSS is the Winter White, split-rear-door variant of the Vertiv GL790ES line — a 42U cabinet at 30 inches wide and 42 inches deep. The split mesh rear door is the spec I look at first on this model: it cuts the full-height rear swing in half, which is the difference between a clean maintenance window and a two-person door-hold exercise in a single-aisle room.
Technical Highlights:
- Split Mesh Rear Door: Upper and lower halves open independently — in a 24-inch hot-aisle, you can access rear ports on the top half of the rack without disturbing containment panels or the tech working in the row behind you.
- 30 x 42-Inch Footprint: The 30-inch width seats 19-inch equipment with room for dual vertical PDUs or a full-height cable manager on each side rail. The 42-inch depth clears virtually all 1U-4U server depths without rear-door pressure on cable bundles.
- Winter White Finish: This is a catalog finish in the GL790ES family, not a special order — so matching doors, blanking panels, and accessories pull from standard stock. For open-plan or light-colored server rooms, it avoids the institutional look of all-black rows.
Deployment Considerations:
- The 42-inch depth works well for structured cabling closets where patch panels occupy the front and horizontal cable managers route to the rear — but confirm your aisle-depth allows the full rear door swing before ordering the standard single-door variant instead.
- The GL790ES family spans 24U through 52U; if you are building a multi-row deployment, standardize on one width (24, 30, or 32 inches) early — rail kits and PDU accessories are width-specific, and mixing adds procurement complexity.
This cabinet is a strong fit for open-office IT closets, light-colored data center rows, and structured cabling deployments where the split rear door solves a real aisle-access constraint — not a general-purpose pick for every white-finish preference.
