Vertiv Cmrx 52U 24 in 16.25 in Black - CMRX-52U16-B-SQM6

Vertiv CMRX-52U16-B-SQM6 52U Open Frame Server Rack — Black, M6 Tapped

Overview

The Vertiv CMRX-52U16-B-SQM6 is a 52U open frame rack built for data center, network closet, and equipment room deployments where airflow management, fast equipment access, and structural compliance matter. Available in Black, this configuration ships with M6 (#12-24 tapped, 3/8\" square hole) mounting rails — the industry-standard hole pattern that fits virtually every 19-inch rackmount device without adapters. If you're standardizing a multi-rack row on a consistent rail type, specifying the M6 variant upfront eliminates compatibility friction at installation.

UL2416 listing means the cabinet meets the structural and safety requirements for office and data center rack systems — relevant when facilities or insurance teams require listed enclosures. RoHS II compliance covers EU hazardous substance restrictions, which matters for international deployments or environmentally regulated facilities.

Key Features

• 52U Rack Height: 52U gives you more usable vertical space than the common 42U standard — useful when consolidating dense switching, patch panels, and UPS units into fewer physical enclosures without splitting equipment across rooms.
• #12-24 Tapped M6 Rails (3/8\" Square Hole): The M6 square-hole pattern is compatible with the widest range of vendor-supplied rack hardware. No cage nuts required for M6-threaded rails — faster installs, fewer loose parts on the floor.
• Black Finish: Standard data center black coordinates with the majority of commercial rackmount equipment and meets aesthetic requirements in customer-facing equipment rooms or NOC environments.
• UL2416 Listed: Structural safety listing required by many enterprise facilities teams and AHJs (Authorities Having Jurisdiction) — check your site specs before substituting an unlisted enclosure.
• RoHS II Compliant: Covers EU Directive 2011/65/EU restriction of hazardous substances — required for EU imports and preferred for organizations with green procurement policies.
• Open Frame Design: Unrestricted airflow on all sides simplifies hot/cold aisle containment and eliminates the need for blanking panels in non-enclosed configurations. Ideal for well-controlled equipment rooms where physical security of the enclosure itself is secondary to thermal performance.

What\'s in the Box

• 1x Vertiv CMRX-52U16-B-SQM6 Open Frame Rack
• Rack Mount Hardware
• 20x 3.5\" × 5\" 1/4-turn D-rings

Frequently Asked Questions

Q: What rail hole pattern does the CMRX-52U16-B-SQM6 use?

A: The CMRX-52U16-B-SQM6 uses #12-24 tapped, 3/8-inch square (M6) holes — the standard pattern compatible with the vast majority of 19-inch rackmount equipment. Cage nuts are not required for M6-threaded rails.

Q: Is the CMRX-52U16-B-SQM6 UL listed?

A: Yes. The CMRX-52U16-B-SQM6 is UL2416 listed, meeting structural and safety requirements for data center and office rack enclosures.

Q: Is this rack RoHS compliant?

A: Yes, the CMRX-52U16-B-SQM6 carries RoHS II certification, complying with EU Directive 2011/65/EU restrictions on hazardous substances.

Q: How many rack units does the CMRX-52U16-B-SQM6 provide?

A: This model provides 52U of usable vertical mounting space — more than the standard 42U configuration, which is useful for high-density installations consolidating switching, patching, and power equipment in a single enclosure.

Q: What is included in the box with the CMRX-52U16-B-SQM6?

A: The package includes rack mount hardware and 20 units of 3.5-inch by 5-inch 1/4-turn D-rings for cable management.

Ted Perry

The CMRX-52U16-B-SQM6 is the 52U black variant in Vertiv's CMRX open frame rack line, and the detail that actually matters at install time is the M6 tapped square-hole rail pattern — specify this correctly when ordering and you eliminate a common site-delay where crews discover mismatched cage-nut requirements mid-rack after the equipment has already shipped.

Technical Highlights:

• 52U Capacity: Ten extra rack units versus the typical 42U standard means you can fit additional 1U or 2U devices — a meaningful difference when you're trying to keep a surveillance head-end, PoE switch stack, NVR, and UPS in a single physical location rather than splitting across two enclosures.
• UL2416 Listing: This listing is the structural safety standard for rack systems — not all open frame racks carry it. When your facilities or AHJ requires a listed enclosure, this spec closes that conversation without sourcing a different product.
• D-Ring Cable Management (Qty. 20): The included 3.5\" × 5\" 1/4-turn D-rings cover a full 52U of cable routing — that's enough to dress horizontal cable runs on every other U without running out of hardware, which is the typical shortfall when D-rings are sold separately.

Deployment Considerations:

• Open frame racks like the CMRX-52U16-B-SQM6 assume the room provides physical security — if the equipment room is shared or accessible to non-IT staff, factor in a locking side panel kit or enclosed cabinet instead.
• The 52U height exceeds standard ceiling clearance in some older IDF closets — verify floor-to-ceiling clearance plus top cable routing space before specifying this height over the 42U or 45U variant in the same family.

This rack is the right fit for purpose-built equipment rooms or data center rows where an integrator needs UL-listed, RoHS-compliant open frame infrastructure with standardized M6 rail hardware and enough vertical space to consolidate a full surveillance head-end — NVR, switching, patch, and power — into one enclosure.