Vertiv Cmrx 59U 24 in 36 in Black - CMRX-59U36-B-SQM6

Vertiv CMRX-59U36-B-SQM6 59U Open Frame Colocation Rack

Overview

The Vertiv CMRX-59U36-B-SQM6 is a 59U open-frame colocation rack in black, engineered for high-density data center and IT equipment deployments where structured cable management and tool-accessible mounting are non-negotiable. The M6 square-hole rail system is the current industry standard for enterprise server and networking gear, so you can mount most modern 1U–4U equipment without adapter hardware — saving time on initial rack population and future upgrades. CMRX-59U36-B-SQM6 (often searched as CMRX 59U36 B SQM6) ships with 20 quarter-turn D-rings that handle horizontal and vertical cable bundles without zip-tie rework every time a card swaps out.

Key Features

• 59U of usable rack space: At 59U, this frame accommodates full server stacks, top-of-rack switching, patch panels, and KVM — leaving room to grow without an immediate second rack purchase.
• M6 square-hole rail system (#12-24 tapped 3/8\" sq.): Aligns with the EIA-310 standard used by Dell, HPE, Cisco, and most enterprise OEMs — no thread adapters or cage-nut fumbling for standard deployments.
• UL2416 listed: UL2416 is the safety standard for IT rack systems; listing confirms the frame has been independently evaluated for structural integrity and load-bearing safety — relevant if your facility requires UL-listed infrastructure.
• RoHS II compliant: Meets EU hazardous-substance restrictions — required for deployments in EU-regulated facilities or for customers with environmental procurement policies.
• Black finish: Standard data center colorway — blends with existing Vertiv, APC, and third-party equipment in mixed-vendor rows without cosmetic mismatches.
• 20x 3.5\" × 5\" 1/4-turn D-rings (included): These are not throwaway plastic hooks — 1/4-turn D-rings are tool-free, re-openable, and rated for structured cabling runs. Having 20 in-box means you can dress a full rack's worth of cable paths from day one.

What\'s in the Box

• 1x Vertiv CMRX-59U36-B-SQM6 open frame rack
• Rack mount hardware
• 20x 3.5\" × 5\" 1/4-turn D-rings

Frequently Asked Questions

Q: What mounting rail standard does the CMRX-59U36-B-SQM6 use?

A: The CMRX-59U36-B-SQM6 uses #12-24 tapped 3/8\" square-hole (M6) rails, the current EIA-310 standard compatible with the vast majority of enterprise server, networking, and storage equipment from major OEMs.

Q: What certifications does the CMRX-59U36-B-SQM6 carry?

A: The CMRX-59U36-B-SQM6 is UL2416 listed (the IT rack systems safety standard) and RoHS II compliant for hazardous substance restrictions.

Q: How many D-rings are included with the CMRX-59U36-B-SQM6?

A: The rack ships with 20 quarter-turn D-rings measuring 3.5\" × 5\", suitable for structured horizontal and vertical cable management throughout the full 59U frame.

Q: Is the CMRX-59U36-B-SQM6 available in colors other than black?

A: The CMRX family is available in black and winter white — the CMRX-59U36-B-SQM6 specifically is the black variant of the 59U 36\" frame.

Q: What U sizes are available in the Vertiv CMRX open frame rack family?

A: The Vertiv CMRX family is available in 45U, 52U, and 59U configurations — select the U count that matches your planned equipment density plus a 10–15% growth buffer.

James Everett

The CMRX-59U36-B-SQM6 is a straightforward spec decision once you know your U count: at 59U with M6 square-hole rails and UL2416 listing, it handles a full enterprise server stack plus top-of-rack switching without the rail adapter headaches you get with older threaded-hole frames. The 36\" depth is the key figure — verify your deepest servers (typically 2-post-mount rail kits on 1U compute nodes) clear that depth before committing.

Technical Highlights:

• M6 square-hole rails: #12-24 tapped 3/8\" sq. is the dominant enterprise standard — Dell PowerEdge, HPE ProLiant, and Cisco UCS all ship with M6-compatible rail kits, so you're not sourcing adapter hardware on day one.
• UL2416 listing: Independent structural and safety evaluation — relevant when your facilities team or insurance underwriter requires listed rack infrastructure, not just a CE mark.
• 20x quarter-turn D-rings (3.5\" × 5\"): In-box count covers a full 59U frame's worth of cable dressing at a density that keeps runs accessible for MAC work without cutting ties.

Deployment Considerations:

• Confirm aisle clearance before delivery — a 59U open frame at 36\" depth needs staged rollout room; measure door and aisle width against the crated dimensions with your facilities team.
• Open-frame designs offer no physical access control — if your colocation or server room requires locking enclosures per your security policy, evaluate the enclosed Vertiv VR or VRA cabinet family instead.

Best fit for colocation rows and internal data center builds where equipment density is high, MAC frequency is moderate-to-high, and physical access control is handled at the room perimeter rather than the rack door — the CMRX-59U36-B-SQM6 is the wrong choice for any deployment requiring per-rack locking.