Vertiv CMR-45U10-B-1224 45U Open-Frame Rack Cabinet
The Vertiv CMR-45U10-B-1224 is a 45U open-frame rack cabinet finished in Black, configured with a 10.5-inch depth and #12-24 tapped mounting rails — a purpose-built enclosure for structured IT and security infrastructure deployments where accessibility and airflow matter more than enclosed security panels. If you are sourcing from the Vertiv rack and enclosure line, the CMR series covers a range of heights and depths; this specific SKU fixes you at 45U with the shallow 10.5-inch rail depth, which suits patch panels, fiber distribution, and lightweight network gear in wiring closets and security head-end rooms.
Key Features
- 45U Height: 45U of usable rack space handles a full security head-end build — NVRs, PoE switches, patch panels, and UPS in a single enclosure — without the footprint of a 52U or 59U frame. Plan roughly 79 inches of overall frame height when selecting ceiling clearance.
- 10.5-Inch Rail Depth: The 10.5-inch depth is optimized for shallow-mount equipment: patch panels, cable managers, fiber distribution units, and 1U switches. Deep-chassis servers and large UPS units require a 12-inch or 16.25-inch depth variant — this SKU is not the right choice for those.
- Black Finish: The Black color option integrates cleanly into data centers, security operations centers, and wiring closets where rack aesthetics matter for client-facing installs. A Winter White variant exists in the CMR family if your environment calls for it.
- #12-24 Tapped Mounting Rails: Tapped #12-24 rails eliminate the need for cage nuts on every U position — equipment mounts directly with #12-24 screws, which speeds up initial rack population and gear swaps during service calls. If your equipment uses M6 square-hole or 3/8-inch square-hole patterns, verify compatibility before ordering, as those are separate CMR configurations.
- Open-Frame Design: The open-frame architecture means unrestricted front-to-back airflow — relevant in head-end rooms where forced-air cooling is limited and you are stacking heat-generating network switches and NVR appliances. Enclosed cabinets trap heat in those environments; an open frame does not.
- CMR Family Scalability: The CMR series spans 45U, 52U, and 59U heights and 6-inch, 10.5-inch, 12-inch, and 16.25-inch depths, so if this project scales or a second rack is needed, matching frames are available without switching product families.
Integration and Compatibility
The CMR-45U10-B-1224 is compatible with standard 19-inch rackmount equipment using #12-24 threaded fasteners. Deploy it alongside network video recorders, managed PoE switches, and patch panels in security head-end and IT closet builds. For installations requiring enclosed panel security or blanking panel management, consider pairing with compatible rack accessories such as side panels or horizontal cable managers from the Vertiv CMR accessory ecosystem. If your rack population includes equipment using M6 or 3/8-inch square-hole mounting — common with some server and UPS hardware — confirm the mounting rail pattern before committing to this SKU; the CMR family offers multiple mounting configurations and this unit ships with #12-24 tapped rails only.
For projects requiring guidance on rack planning and head-end room layout, the rail depth and U-count of this frame directly affects how you sequence equipment mounting — shallow 10.5-inch rails should be planned against your deepest piece of gear to avoid interference at the rear cable path.
Frequently Asked Questions
Q: What mounting rail standard does the CMR-45U10-B-1224 use?
A: The CMR-45U10-B-1224 ships with #12-24 tapped mounting rails. Equipment must use #12-24 threaded screws for direct mounting. If your gear requires M6 or 3/8-inch square-hole rails, select the appropriate CMR variant with that mounting configuration.
Q: How deep is the CMR-45U10-B-1224?
A: The rail depth on this SKU is 10.5 inches. This is suited for shallow-mount equipment such as patch panels, fiber distribution units, and 1U network switches. For deeper chassis equipment, select a 12-inch or 16.25-inch depth CMR variant.
Q: Is the CMR-45U10-B-1224 an open-frame or enclosed cabinet?
A: The CMR series is an open-frame rack design, meaning there are no side panels, doors, or roof panels included. This supports unrestricted airflow but does not provide physical enclosure security. Side panels and other enclosure accessories may be available separately in the Vertiv CMR accessory family.
Q: What height is the CMR-45U10-B-1224, and what does that mean in practice?
A: This unit provides 45U of usable rack space. The overall frame height will be approximately 79 inches. This accommodates a full security head-end or IT wiring closet build — NVRs, switches, patch panels, and a UPS — in a single frame without requiring the larger 52U or 59U footprint variants.
Q: Can the CMR-45U10-B-1224 be used in a security head-end room alongside NVRs and PoE switches?
A: Yes. The 45U open-frame design is well-suited for security head-end builds combining network video recorders, PoE switches, patch panels, and UPS hardware, provided your equipment uses #12-24 threaded mounting and fits within the 10.5-inch rail depth. Verify equipment depth requirements against the 10.5-inch rail spacing before finalizing your bill of materials.
When I spec a head-end rack for a mid-scale physical security deployment, rail depth is the spec that bites integrators most often. The CMR-45U10-B-1224 locks you into 10.5 inches of rail depth — that is sufficient for most 1U patch panels, fiber distribution units, and shallow network switches, but it will not accommodate standard 2-post-style deep NVR chassis or tower-to-rack UPS conversions. Know your gear list before you commit to this SKU.
Technical Highlights:
- 45U Capacity: Enough vertical space to handle a complete security head-end — NVR, PoE switch stack, patch panel, and UPS — in a single frame, without bumping to the 52U or 59U variants that add unnecessary height in constrained wiring closets.
- #12-24 Tapped Rails: Direct-thread mounting eliminates cage-nut fumbling on every U position, which matters on a rack you are populating in a finished ceiling space or during a compressed commissioning window.
- Open-Frame Construction: No doors or panels means unobstructed access to cable runs and equipment faces during installation and service. In a climate-controlled IDF closet or security operations room, passive airflow through the open frame is often sufficient without additional forced-air accessories.
Deployment Considerations:
- Confirm every piece of rack equipment in your BOM uses #12-24 threaded mounting before ordering. Server and UPS hardware commonly ships expecting M6 square-hole or 10-32 rails — mismatches require rail adapters or a different CMR configuration.
- At 10.5 inches of rail depth, rear cable management space is limited. Plan your patch and power cord routing before rack population, not after — this depth does not leave much room for corrective work once gear is seated.
The CMR-45U10-B-1224 is a strong fit for wiring-closet and security head-end installs where shallow gear dominates the BOM and open-frame airflow is preferred over an enclosed cabinet — a common profile in enterprise branch offices, school campus IDF rooms, and retail security infrastructure deployments.
