Vertiv Cmrx 45U 24 in 16.25 in Black - CMRX-45U16-B-1224

Vertiv CMRX-45U16-B-1224 45U Open Frame Rack Cabinet

The Vertiv CMRX-45U16-B-1224 is a 45U rack cabinet finished in black, configured at 16.25 inches of usable depth — a purpose-built enclosure for structured equipment deployments in data centers, telecom closets, and physical security headend rooms. The CMRX series from Vertiv is engineered for integrators who need a reliable, standards-compliant mounting foundation without compromising on flexibility.

Overview

At 45U of vertical space, the CMRX-45U16-B-1224 accommodates a full stack of 1U and 2U gear — NVRs, patch panels, PoE switches, KVM switches, and power distribution — in a single enclosure. The 16.25-inch depth suits shallow equipment and keeps cabling manageable in space-constrained installations. For deeper deployments, the CMRX family is available in multiple depth configurations (10.5", 16.25", 24", 30", and 36"), so teams can right-size the cabinet to the actual gear being installed rather than over-buying on depth and losing floor footprint. Explore the full Vertiv rack and infrastructure line for compatible power and cooling accessories.

Key Features

• 45U Vertical Capacity: 45U of usable rack space handles a complete physical security or network headend — NVRs, switches, access control panels, and UPS — without stacking multiple enclosures or running out of room mid-project. If your design calls for more headroom, the CMRX family steps up to 52U and 59U in the same footprint family.
• 16.25-Inch Depth: Shallow-depth cabinets are underused in installations where every square foot matters. At 16.25", this unit fits comfortably in narrow telecom closets and wall-alcove deployments where a standard 30" deep rack simply won't close the door. Confirm your deepest piece of equipment (typically a UPS or high-density switch) clears this dimension before spec'ing.
• Black Finish: The black powder-coat finish integrates cleanly into both raised-floor data centers and finished-space security operations centers. Winter White is available in the CMRX family for environments where visual matching to existing infrastructure matters.
• Dual Mounting Standards — #12-24 Tapped and 3/8" Sq. (M6): Supporting both #12-24 tapped rails and 3/8" square-hole (M6) mounting means you're not locked into sourcing only M6 cage nuts or only legacy equipment. Most modern 1U gear ships with M6 hardware; older or specialty equipment often expects #12-24. Having both on the same rack eliminates the adapter-rail workaround on mixed fleets. A clear mounting option is also listed, accommodating specialized rail kits.
• CMRX Series Scalability: The CMRX-45U16-B-1224 sits within a broader depth-and-height matrix. If a project grows — or if equipment specs change after the initial design — Vertiv's CMRX family offers a consistent mounting and accessory ecosystem across the available configurations, reducing re-qualification time when you swap or add cabinets. Browse rack cabinets and enclosures to compare configurations.

Integration and Compatibility

The dual rail standard (#12-24 and M6) covers the vast majority of rack-mount hardware in physical security and IT infrastructure: Axis and Hanwha NVRs, Cisco and Aruba PoE switches, APC and Vertiv power distribution units, and standard 19-inch rack-mount access control servers all mount without modification. Pair this cabinet with a rack PDU and structured cable management accessories to complete the headend build. Verify internal depth clearance against your UPS or high-density switch specifications — 16.25" is the limiting constraint here and is non-negotiable once the cabinet is installed.

Frequently Asked Questions

Q: What mounting rail standards does the CMRX-45U16-B-1224 support?

A: The CMRX-45U16-B-1224 supports #12-24 tapped rails, 3/8" square-hole (M6) rails, and a clear mounting option — covering both legacy and modern rack-mount hardware without requiring adapter kits.

Q: What is the usable depth of the CMRX-45U16-B-1224?

A: This specific configuration provides 16.25 inches of depth. The CMRX family is also available in 10.5", 24", 30", and 36" depth variants if your equipment requires more clearance.

Q: Can the CMRX-45U16-B-1224 be used in a physical security headend installation?

A: Yes. The 45U capacity and dual rail standard accommodate standard 19-inch rack-mount NVRs, PoE switches, access control servers, and power distribution units commonly deployed in physical security headend rooms.

Q: Is the CMRX-45U16-B-1224 available in colors other than black?

A: The CMRX series is available in black and Winter White. This specific SKU (CMRX-45U16-B-1224) is the black configuration; the "B" in the model number designates the black finish.

Q: What height options exist in the CMRX family alongside the 45U configuration?

A: The CMRX family includes 45U, 52U, and 59U height options, allowing you to scale vertically within the same product family and accessory ecosystem.

Jerry Tildsen

The CMRX-45U16-B-1224 is one I'd reach for on any shallow-closet security headend build where the depth budget is tight. At 16.25 inches, you're in the zone for most 1U NVRs and managed PoE switches — but you need to check your UPS spec before committing, because that's where 16.25" bites you if you're not paying attention.

Technical Highlights:

• Dual Rail Standard (#12-24 and M6): Mixed fleets are the norm in physical security installs — some legacy access control gear is still #12-24, while every modern switch and NVR ships M6. Both on the same rail means no cage-nut adapter kits and no rail-swap mid-install.
• 45U Capacity: For a full-size physical security headend — NVR, core switch, PoE switch stack, access control server, and PDU — 45U gives you room without going to a two-cabinet layout. That matters in closets where floor space is billed by the square foot.
• CMRX Family Depth Range (10.5" to 36"): The same accessory ecosystem scales across five depth configurations. If a follow-on phase adds deeper gear, you're not re-qualifying a different cabinet platform — just a different depth SKU in the same family.

Deployment Considerations:

• Confirm your deepest piece of rack-mount equipment — typically a rackmount UPS or a high-density PoE switch — against the 16.25" usable depth before purchasing. This is a non-recoverable spec once the cabinet is anchored and wired.
• The CMRX-45U16-B-1224 is listed with mounting options including "Clear" — verify with Vertiv documentation which rail kit ships with this configuration versus what requires a separate order, particularly if your BOM includes M6 cage nuts at volume.

This cabinet is the right call for a physical security operations closet or telecom room where depth is constrained, the equipment mix is modern but not exclusively so, and you need a Vertiv-ecosystem enclosure that won't require a platform change if the headend grows vertically.