Vertiv GL840ES-3048-W-MS 44U White Rack Enclosure
The Vertiv GL840ES-3048-W-MS is a 44U, 30-inch-wide by 48-inch-deep rack enclosure finished in Winter White — a fixed-dimension, mesh-door cabinet from Vertiv's Geist rack line designed for network closets, data center rows, and equipment rooms where a white finish matters for facility aesthetics or lab identification. If you're sourcing for a deployment where the standard black cabinet blends into a wall and creates a maintenance headache, this configuration solves that immediately.
The GL840ES-3048-W-MS (often searched as GL840ES 3048 W MS) ships in the 30-inch-wide footprint — narrower than a 32-inch column, which matters when you're working inside a tight network closet or a row where every inch of aisle clearance counts. At 48 inches of depth, it accommodates front-to-rear cable management and full-depth servers without forcing rear-door compromises.
Key Features
- 44U Usable Height: 44U gives you room to house a full mix of 1U switches, 2U servers, patch panels, and PDUs in a single enclosure without overflow into a second cabinet — relevant when you're consolidating a mid-size network room.
- 30-Inch Width: The 30-inch column fits where a 32-inch rack won't — tight alcoves, side-by-side closet installations, and rows with fixed structural spacing. Verify your floor tile or overhead ladder rack spans before ordering a wider model.
- 48-Inch Depth: Deep enough for full-depth servers and rear-mounted vertical PDUs simultaneously, without sacrificing cable bend radius at the back of the chassis.
- Winter White Finish: In lab environments, clean-room adjacent spaces, or aesthetic-driven facilities, the Winter White powder coat distinguishes this row from adjacent black infrastructure at a glance — useful for zone identification without labeling tape.
- Mesh Contour Door Options: Available door configurations include Mesh Contour Front/Rear and Mesh Contour Front/Split Mesh Rear — both promote front-to-back convective airflow through the cabinet without requiring active door fans, reducing a maintenance variable in lower-density deployments.
- Clear Door Option: If you need visibility into the cabinet without opening the door — for quick LED status checks or guided tours — the Clear door variant provides unobstructed line-of-sight to mounted equipment.
Integration and Compatibility
As part of Vertiv's rack and enclosure catalog, the GL840ES series is built to accept standard 19-inch EIA-310 rack-mount equipment. The 30x48 footprint sits within Vertiv's broader rack enclosure line, which spans 24U through 52U heights and 24-inch through 32-inch widths — so if this unit's footprint doesn't match your floor plan, a sibling configuration almost certainly does without leaving the product family. Consult your network infrastructure layout before committing to the 30-inch column if your row uses standard 24-inch tiles; confirm the cabinet overhangs are acceptable to your facilities team. Pair with a rack-mount PDU sized to your load and a structured cable management solution to make the most of the 48-inch depth.
Frequently Asked Questions
Q: What is the usable rack height of the GL840ES-3048-W-MS?
A: The GL840ES-3048-W-MS provides 44U of usable rack space, accommodating standard 19-inch EIA-310 rack-mount equipment.
Q: What are the external dimensions of this cabinet?
A: The GL840ES-3048-W-MS is 30 inches wide and 48 inches deep. Overall height corresponds to a 44U enclosure — confirm exact external height in millimeters with Vertiv's current datasheet before finalizing floor plans.
Q: Why choose the Winter White finish over the standard black?
A: The Winter White finish is used in lab environments, clean rooms, or facilities where visual zone differentiation between rows or equipment groups is required without additional labeling. It also meets certain aesthetic or facility-code requirements in non-traditional data spaces.
Q: What door configurations are available on this model?
A: The GL840ES series supports Mesh Contour Front/Rear, Mesh Contour Front/Split Mesh Rear, and Clear door options. Mesh doors promote passive convective airflow; Clear doors allow visual equipment inspection without opening the cabinet.
Q: Is the GL840ES-3048-W-MS compatible with standard 19-inch rack equipment?
A: Yes — this is a standard 19-inch EIA-310 rail enclosure compatible with servers, switches, patch panels, PDUs, and other rack-mount hardware from any vendor meeting that standard.
Q: Does Vertiv offer other sizes in the GL840ES family?
A: Yes. The GL840ES line spans 24U, 42U, 44U, 48U, and 52U heights, with widths of 24, 30, and 32 inches and depths of 42 or 48 inches, in Black or Winter White finishes — giving you a direct family upgrade path without switching manufacturers.
The GL840ES-3048-W-MS is a specific-use pick — you're buying it because you need 44U in a 30-inch column, 48 inches deep, and Winter White. Those three parameters together mean you're probably fitting a white-finish lab row, a clean-room adjacent network closet, or a facility where the ops team color-codes infrastructure zones. The 30-inch width is the narrowest standard column that still clears full-depth server installations, and at 48 inches of depth you won't be stacking compromises at the rear of the cabinet.
Technical Highlights:
- 30-Inch Column Width: Saves roughly 2 inches per cabinet versus a 32-inch column — across a 10-cabinet row that's nearly 20 inches of aisle or wall clearance recovered. Non-trivial in constrained network rooms.
- 48-Inch Depth: Handles full-depth servers plus rear vertical PDU installations simultaneously. At 42 inches you start making cable-bend compromises on deep chassis; at 48 inches you don't.
- Mesh Contour Door (Front/Split Rear): The split rear door is the right call in dense rows — you can open one half for rear cabling access without swinging the full door into an adjacent cabinet or aisle obstruction.
Deployment Considerations:
- The 30-inch footprint overhangs standard 24-inch raised floor tiles by 3 inches per side — confirm with your facilities team that overhead cable trays and floor grommets are positioned to clear before the cabinet is racked in.
- Winter White powder coat shows cable management imperfections and dust accumulation more visibly than black — if the site doesn't have a structured cabling plan in place before install, the finish will highlight it immediately.
This enclosure is the right specification for a white-finish lab buildout or a university/healthcare network closet where rows are color-coded by department or function — environments where the Winter White isn't cosmetic, it's operational.
