Vertiv Cmrx 52U 24 in 24 in Black - CMRX-52U24-B-SQM6

Vertiv CMRX-52U24-B-SQM6 52U Open-Frame Rack Enclosure

Overview

The Vertiv CMRX-52U24-B-SQM6 is a 52U open rack enclosure finished in black, with a 24-inch depth footprint and M6 (#12-24 tapped 3/8" square) rail holes throughout. If you're building out a new equipment bay or refreshing an existing one, this rack targets the structural foundation question first: compliant rail tapping, verified UL2416 listing, and RoHS II material compliance out of the box — details that matter when you're submitting to a facilities or compliance team before the first switch goes in the rack. The CMRX-52U24-B-SQM6 ships ready for standard 19-inch rackmount equipment and includes D-ring cable management hardware, so you're not ordering a separate cable management kit on day one.

Vertiv also offers this enclosure family in additional Vertiv rack configurations, including 45U and 59U height options and a Winter White finish — useful if you're matching an existing row or working within a color-coded zone in a mixed-vendor data hall.

Key Features

• 52U Usable Height: 52U gives you room to house a full complement of 1U and 2U devices — switches, patch panels, PDUs, and servers — without the compromise of a 42U or 45U frame. If you're running out of vertical space in your current rack before you run out of cabling or power capacity, the extra 7–10U over a standard 42U frame is the practical fix.
• 24-Inch Depth: The 24-inch depth suits shallow networking gear, patch panels, and smaller UPS units without wasted floor space. Deeper servers may require a deeper enclosure — verify your equipment's depth spec before ordering.
• M6 (#12-24 Tapped 3/8" Square) Rail Holes: M6 tapped rails accept standard M6 cage nuts and screws used across the industry, meaning you won't be hunting for proprietary fasteners or adapting hardware mid-install. The 3/8" square punch pattern is the de facto standard for 19-inch equipment mounting.
• Black Finish: Black matches the majority of commercial rack deployments and reduces visual heat-signature contrast in dark data room environments. A Winter White variant exists in the same family if your installation requires it.
• UL2416 Listed: UL2416 is the standard for information technology and telecommunications equipment racks and enclosures. A UL listing means the physical structure has been evaluated for flammability and construction standards — a requirement for many data center and commercial building environments before equipment can be installed.
• RoHS II Compliant: RoHS II compliance restricts hazardous substances in the enclosure's materials, a procurement requirement for many enterprise and government buyers. Check your project's environmental compliance requirements at the specification stage — this enclosure meets current EU and many US agency thresholds.
• Included D-Ring Cable Management (Qty. 20): The 20 included 3.5" x 5" 1/4-turn D-rings provide horizontal cable retention without a separate cable management order. D-rings at this size handle Cat6, fiber patch cables, and power cords without sharp-radius bends that degrade cable performance over time.

Integration & Compatibility

The CMRX-52U24-B-SQM6 is compatible with standard 19-inch rackmount equipment. The M6 tapped rail system is cross-compatible with the vast majority of enterprise network switches, patch panels, PDUs, and server equipment from major manufacturers. Verify your equipment's rail kit compatibility with M6 tapped rails before ordering — some vendors ship with cage-nut-style kits that require a smooth-hole rail, not a pre-tapped one. If you're populating the enclosure with network video recorders or surveillance servers, the 52U height provides sufficient space to co-locate NVR appliances, PoE switches, and patch panels in a single frame. For full rack infrastructure planning, review your power distribution requirements alongside this enclosure selection — PDU form factor and outlet count should be confirmed before finalizing rack layout.

What's in the Box

• 1x Vertiv CMRX-52U24-B-SQM6 52U Rack Enclosure (Black)
• Rack mount hardware
• 20x 3.5" x 5" 1/4-turn D-rings

Frequently Asked Questions

Q: What rail hole type does the CMRX-52U24-B-SQM6 use?

A: The CMRX-52U24-B-SQM6 uses #12-24 tapped 3/8" square (M6) rail holes. This is the industry-standard pre-tapped pattern compatible with M6 screws and rack mount hardware from most major equipment vendors.

Q: Does this rack enclosure come in other sizes or colors?

A: Yes. The CMRX family is available in 45U, 52U, and 59U heights, and in both Black and Winter White finishes. Confirm the size and finish variant that matches your deployment before ordering.

Q: What cable management hardware is included with the CMRX-52U24-B-SQM6?

A: The enclosure ships with 20 D-rings measuring 3.5" x 5" with 1/4-turn retention. These provide horizontal cable management for patch cables, fiber, and power cords without a separate purchase.

Q: Is the CMRX-52U24-B-SQM6 UL listed?

A: Yes. This enclosure carries a UL2416 listing, the applicable standard for IT and telecommunications equipment racks and enclosures, covering flammability and structural construction requirements.

Q: Is the CMRX-52U24-B-SQM6 RoHS compliant?

A: Yes, the CMRX-52U24-B-SQM6 is RoHS II compliant, meaning its materials meet the EU Restriction of Hazardous Substances directive — a common procurement requirement for enterprise and public-sector buyers.

Q: What equipment depth is this enclosure designed for?

A: The enclosure has a 24-inch internal depth. This suits most networking gear, patch panels, and shallow server appliances. Verify your specific equipment's depth requirements before finalizing your rack selection.

Karl Wilson

The CMRX-52U24-B-SQM6 earns its place in mid-density deployments where you need more vertical space than a standard 42U delivers but don't want the floor footprint of a deeper 36-inch enclosure. The 24-inch depth with M6 tapped rails is the detail that simplifies procurement — no cage nut adapters, no rail conversion kits, just standard M6 hardware that's already in your installer's bag.

Technical Highlights:

• UL2416 Listing: Satisfies the structural and flammability review most facilities teams require before equipment installation is approved — avoids a compliance delay mid-project.
• 20x D-Rings (3.5" x 5", 1/4-turn): Enough cable management hardware to dress a fully-populated 52U frame without a separate order, and the 1/4-turn design means you can route and re-route cables during commissioning without tools.
• RoHS II Compliance: Meets hazardous substance restrictions that are increasingly written into enterprise and government procurement specs — confirmed at the enclosure level, not just the equipment level.

Deployment Considerations:

• The 24-inch depth accommodates most 1U/2U networking and NVR appliances, but confirm your deepest piece of equipment before ordering — some enterprise servers and larger UPS units require 36-inch or deeper enclosures.
• Pre-tapped M6 rails mean you cannot use cage nut style mounting without an adapter; verify your equipment's rail kit type (tapped vs. square hole) before the installation date.

This enclosure is a practical fit for security operations center buildouts and edge surveillance equipment rooms where a standard 42U falls short, compliance documentation is required by the facilities team, and the install crew needs to move fast without hunting for hardware.