Vertiv GL840ES-3248-B-MS 44U Server Rack Enclosure
Overview
The Vertiv GL840ES-3248-B-MS is a 44U open-frame-style rack enclosure in the Geist Line family, configured at 32 inches wide and 48 inches deep in black finish. The GL840ES-3248-B-MS (often searched as GL840ES 3248 B MS) targets data center rows, network equipment rooms, and structured cabling deployments where equipment depth and cable density demand a wider-than-standard 32-inch footprint. Browse the full Vertiv rack and power catalog for companion power distribution and thermal management options.
Key Features
- 32-Inch Width: The 32-inch internal width accommodates side-by-side vertical PDUs alongside standard 19-inch rail-mounted equipment — you keep the PDU off the rear rails, which frees the full 48-inch depth for your deepest switches and UPS units.
- 48-Inch Depth: A 48-inch usable depth handles hyperscale switches, large UPS modules, and high-density patch panels without requiring rear rail extensions. If your deepest chassis runs 40–45 inches, this rack fits it without jury-rigging.
- Mesh Contour Front Door: The mesh contour front door delivers direct front-to-back airflow with minimal restriction — no baffles, no blanking-panel workarounds needed at the front face. If your cooling architecture is hot-aisle/cold-aisle, this door style cooperates rather than fights it.
- Black Finish: The black powder-coat finish aligns with standard data center aesthetics and reduces surface glare under high-bay LED lighting — practical in facilities where visual rack identification matters.
- Family Configurability: The GL840ES series ships in multiple height (24U through 52U), width (24", 30", 32"), and depth (42", 48") configurations, so if this unit's footprint doesn't match your floor plan, a sibling variant in the same family likely does. Pair with server rack enclosures from the same line for consistent rail and accessory compatibility.
- Door Options Across the Line: Beyond the mesh contour front on this SKU, the GL840ES family offers mesh contour front/split mesh rear and clear-door variants — useful when you need rear access in confined rows or visibility into active equipment.
Integration and Compatibility
The GL840ES-3248-B-MS integrates with standard 19-inch EIA-310-D rail-mounted equipment. The 32-inch wide frame supports vertical cable managers, side panels, and blanking panels within the Vertiv Geist accessory ecosystem. For power distribution, pair with a vertical or horizontal PDU sized for your circuit load and outlet count. For thermal management, the 48-inch depth and mesh door design are compatible with in-row cooling and hot-aisle containment systems.
If your deployment requires a shallower footprint — for example, a telecom room with a 36-inch depth constraint — consider the 42-inch depth variant in the GL840ES family. If 44U is more vertical space than you need, the same line ships in 24U and 42U configurations. See the full network infrastructure category for companion structured cabling and power accessories.
Frequently Asked Questions
Q: What are the exact dimensions of the GL840ES-3248-B-MS?
A: The GL840ES-3248-B-MS is 32 inches wide and 48 inches deep. Height corresponds to 44U in the GL840ES series at this configuration. Verify exact external dimensions against your floor plan using Vertiv's published rack documentation.
Q: What door style does the GL840ES-3248-B-MS ship with?
A: This model ships with a mesh contour front door configuration. The GL840ES family also offers mesh contour front/split mesh rear and clear door variants depending on the SKU suffix.
Q: Can the GL840ES-3248-B-MS accommodate standard 19-inch rack-mount equipment?
A: Yes. The GL840ES-3248-B-MS is built around a standard 19-inch EIA rail system and accepts any compliant rack-mount chassis, patch panel, switch, UPS, or PDU within the 48-inch usable depth.
Q: Is the GL840ES-3248-B-MS available in other colors or depths?
A: The GL840ES family is available in black and Winter White finishes, and in 42-inch and 48-inch depths. Width options include 24", 30", and 32". Select the variant that matches your row and floor-plan constraints.
Q: What accessories are compatible with the GL840ES-3248-B-MS?
A: The GL840ES-3248-B-MS is compatible with Vertiv Geist-line accessories including vertical cable managers, side panels, blanking panels, and PDUs sized for the 32-inch wide bay. Confirm accessory compatibility using Vertiv's published compatibility matrix for the GL840ES series.
The GL840ES-3248-B-MS lands in a specific niche: 32-inch wide, 48-inch deep, mesh-door, black — a configuration that suits high-density switching and structured cabling rows where you need the extra 2 inches of width to run a vertical PDU on the side wall without crowding your rear-rail equipment. That's the spec that drives the buy decision here.
Technical Highlights:
- 32" Internal Width: Two inches wider than a standard 19-inch EIA frame — enough to mount a full-height vertical PDU alongside equipment rails without blocking rear access or forcing cable trays into the aisle.
- 48" Usable Depth: Accommodates the deepest enterprise switching chassis (Cisco Nexus 9500-series, Arista 7800 linecard frames) without rear-rail extenders — critical when you're buying the rack before you've finalized the switch model.
- Mesh Contour Front Door: Measured airflow resistance through mesh contour doors is substantially lower than solid-door alternatives — the front face doesn't choke your CRAC or in-row cooler's intended CFM delivery to equipment intakes.
Deployment Considerations:
- Verify your raised-floor tile cutout or under-floor cable pathway accommodates a 32-inch wide footprint before ordering — most floor tile grids assume 24-inch or 30-inch rack widths, and repositioning a tile grid mid-deployment is a project.
- The GL840ES-3248-B-MS ships with mesh front; if your containment system requires a rear door (hot-aisle containment with blanking panels), confirm the rear door accessory SKU is in your order — it does not ship as a default on all configurations.
Best fit for a high-density data center row or network operations center where 48-inch-deep hyperscale switches or large UPS chassis are the primary load — and where a 32-inch wide bay is the difference between a clean PDU install and a cable management nightmare.
