Vertiv CMR-45U16-W-SQM6 45U Open Frame Rack — Winter White, M6 Square Mounting
Overview
The Vertiv CMR-45U16-W-SQM6 is a 45U open frame rack finished in Winter White with 16.25-inch depth and 3/8-inch square (M6) mounting holes. It belongs to the Vertiv CMR open frame rack family, which spans 45U, 52U, and 59U heights across multiple depth configurations — making it a practical platform for structured cabling environments, AV equipment staging areas, and network closets where technicians need unobstructed front and rear access without the cost or footprint of a fully enclosed cabinet. If you're sourcing for a white-finish infrastructure environment — a broadcast control room, a clean-room IT closet, or an office MDF where aesthetics matter alongside function — the Winter White color option sets this apart from the standard black variants in the CMR line. For the broader Vertiv rack and enclosure catalog, this model represents the mid-depth open frame tier.
Key Features
- 45U Usable Height: 45U of rack space accommodates a full complement of 1U switches, patch panels, and appliances — roughly 79 inches of usable rail height. That's enough vertical space for a complete small-to-mid network stack without stacking two racks or leaving headroom wasted. The CMR family also comes in 52U and 59U if your design calls for more vertical run.
- 16.25-Inch Depth: The 16.25-inch depth is the specific configuration of this SKU. Open frame racks at this depth sit comfortably in shallow-depth closets and wall-adjacent installations where a full 24-inch or 30-inch deep cabinet would protrude into a pathway. Verify your deepest piece of equipment clears this depth with cable management factored in — patch panels plus cable managers on both front and rear rails can consume 3–4 inches each.
- 3/8-Inch Square (M6) Mounting Holes: M6 square cage-nut mounting is the current industry standard for enterprise and commercial-grade equipment. Every major switch, firewall, UPS, and patch panel ships cage-nut ready, so you won't be hunting for adapters or tapping holes. This mounting style also makes rail swaps and equipment repositioning faster than threaded-hole frames — cage nuts drop out with a flathead, no tap wrench required.
- Winter White Finish: White rack finishes are specified in environments where the enclosure is visible to end users or where a dark rack would stand out unfavorably — AV presentation rooms, retail back-office closets, healthcare nursing stations, and broadcast environments. The CMR-45U16-W-SQM6 provides that aesthetic option without moving to a specialty custom order. Black variants exist in the same CMR family if your environment calls for it.
- Open Frame Design: No doors, no side panels — open frame means unobstructed airflow on all sides, full front-and-rear access without pulling a key or unlatching a door, and faster cable management work. The tradeoff is physical security: if your closet is shared or accessible to non-IT staff, plan for a locking door or cage around the rack rather than relying on the rack itself for access control.
- CMR Family Configurability: The CMR line spans multiple height and depth combinations, so if this exact configuration doesn't match your design — say you need 52U or a shallower 12-inch depth — a sibling SKU likely exists. Confirm the height and depth match your floor plan and equipment list before ordering; open frame racks are not easily modified in the field.
Integration and Compatibility
The CMR-45U16-W-SQM6 uses standard open frame rack mounting geometry. M6 square hole mounting is compatible with virtually all commercial and enterprise networking hardware, including patch panels, 1U and 2U switches, KVM drawers, and blanking panels. If you're deploying this alongside structured cabling patch panels or mounting PoE network switches for a camera system or AV distribution backbone, the M6 hole pattern will accept standard cage nuts for all of those device types. Open frame racks pair naturally with horizontal and vertical cable managers, PDUs on vertical mounting rails, and overhead cable trays — none of those require rack-specific compatibility beyond standard EIA-310 hole spacing, which the CMR series follows.
The Winter White finish is consistent across the CMR family's white-option SKUs, so if you're building a multi-rack row in a white finish environment, sibling units will color-match. Verify with your facilities or AV design team if paint batch variation across separate orders is a concern for visible installations.
Frequently Asked Questions
Q: What does the CMR-45U16-W-SQM6 model number decode to?
A: CMR = the Vertiv open frame rack series; 45U = rack height; 16 = 16.25-inch depth; W = Winter White finish; SQM6 = 3/8-inch square M6 mounting holes. The CMR family also comes in 52U and 59U heights and multiple depths including 6, 10.5, 12, and 16.25 inches.
Q: What type of mounting holes does the CMR-45U16-W-SQM6 use?
A: 3/8-inch square (M6) cage-nut holes. This is the current enterprise standard — compatible with cage nuts for all major commercial networking, AV, and security equipment brands. No thread tapping or adapters required.
Q: Is this rack available in black?
A: The CMR-45U16-W-SQM6 is specifically the Winter White variant. The CMR series does include black-finish models at the same height and depth configurations. If you need a black 45U open frame rack at 16.25-inch depth, reference the equivalent black CMR SKU.
Q: Can the CMR-45U16-W-SQM6 be used as an open frame rack without additional enclosure panels?
A: Yes. It ships as an open frame — no side panels, doors, or roof. This is by design for environments prioritizing airflow and cable access. If physical security is required, a locking enclosure or cage around the rack would need to be added separately.
Q: What rack heights are available in the CMR family?
A: The CMR series spans 45U, 52U, and 59U heights. The CMR-45U16-W-SQM6 is the 45U configuration at 16.25-inch depth in Winter White with M6 square mounting.
The CMR-45U16-W-SQM6 is the configuration I'd reach for in a shallow-closet or visible-install scenario where a standard black 24-inch deep rack won't work — the 16.25-inch depth keeps the footprint out of aisle clearance, and the Winter White finish satisfies facilities teams in environments where a black rack reads as an eyesore. The M6 square mounting on this unit is the detail that matters most day-to-day: cage-nut compatibility means every piece of gear your team touches will mount without hunting for adapters or specialty hardware.
Technical Highlights:
- 16.25-Inch Depth: Fits shallow-depth alcoves and wall-adjacent closets where a full 30-inch cabinet would intrude into egress paths — verify your deepest appliance (firewall, UPS, cable manager) clears 16.25 inches before committing.
- M6 Square Holes: 3/8-inch square cage-nut pattern accepts standard M6 cage nuts — no tap wrench, no thread inserts. Every commercial switch, patch panel, and PDU ships cage-nut ready, so install speed is higher than threaded-hole alternatives.
- Winter White Finish: Specific to environments where rack color is a design or facilities requirement — healthcare stations, broadcast rooms, AV presentation spaces. Black CMR siblings exist for standard deployments.
Deployment Considerations:
- Open frame means full airflow but zero physical security at the rack level — if the closet is shared or accessible to non-authorized personnel, plan a lockable cage or room access control independent of the rack itself.
- The CMR family spans 45U, 52U, and 59U; confirm your vertical space against the 45U height of this specific SKU before ordering — post-delivery height swaps aren't practical on open frame racks already loaded with gear.
The CMR-45U16-W-SQM6 is the right call for a network closet, MDF, or AV distribution rack in a white-finish environment with shallow floor space — particularly in healthcare, education, or corporate office buildouts where the rack is visible and interior aesthetics are specified by the architect or facilities team.
