Vertiv CMR-45U06-B-SQM6 45U Open-Frame Rack — Black, 6" Depth, M6 Square-Hole Mounting
Overview
The Vertiv CMR-45U06-B-SQM6 is a 45U open-frame rack designed for data center, server room, and network infrastructure deployments where cable accessibility and airflow take priority over enclosed cabinet security. At just 6 inches deep, this unit is purpose-built for shallow-mount applications — patch panels, cable managers, and passive network gear that don't require the depth of a full two-post or four-post enclosed cabinet. The open-frame design keeps every run of cabling visible and accessible from all sides, which cuts troubleshooting and recabling time significantly in high-density environments. Browse the full Vertiv infrastructure line for compatible accessories and complementary rack solutions.
Key Features
- 45U usable space: 45U provides room for dense patch-panel buildouts or mixed passive/active gear stacks without committing to a taller footprint — right-sized for most IDF closets and secondary equipment rooms.
- 6" depth: The shallow 6-inch depth fits tight-clearance closets and wall-adjacent installations where a standard 24"- or 30"-deep cabinet simply won't fit. Confirms this SKU is not intended for deep server or storage builds.
- M6 square-hole (3/8" sq.) mounting: Industry-standard M6 cage-nut pattern means virtually every rack-mount device ships with compatible hardware. No proprietary rail adapters, no sourcing delays — install with standard cage nuts and M6 screws already in your stock.
- Black finish: The CMR-45U06-B-SQM6 ships in black, consistent with standard data center and AV rack color conventions. Blends with most rack-mount equipment without a finish mismatch.
Integration & Compatibility
The M6 square-hole rail pattern is compatible with the broadest range of rack-mount hardware on the market. Pair this unit with standard cable management accessories and 1U/2U patch panels from any major structured cabling vendor. If your build requires deeper rails or enclosed panel access, Vertiv's CMR family also offers 10.5", 12", and 16.25" depth variants and 52U/59U heights — verify the depth and height suffix in the MPN before ordering. This unit (CMR-45U06-B-SQM6, often searched as CMR 45U06 B SQM6) is specifically the 45U, 6" black M6 configuration.
Frequently Asked Questions
Q: What does the MPN CMR-45U06-B-SQM6 encode — how do I read the model number?
A: CMR = open-frame rack, 45U = rack height, 06 = 6-inch depth, B = black finish, SQM6 = M6 square-hole mounting rail pattern. Each segment maps directly to a physical spec.
Q: Is the CMR-45U06-B-SQM6 a two-post or four-post rack?
A: The CMR series is an open-frame rack. Based on available evidence, the exact post configuration is not confirmed in the specification data — contact Vertiv or verify via the product datasheet before ordering if post count is critical to your installation.
Q: Will standard cage nuts and M6 screws work with this rack?
A: Yes. The 3/8" square-hole (M6) rail pattern accepts industry-standard M6 cage nuts, which are the most common rack hardware shipped with network switches, patch panels, and AV equipment.
Q: Can I use this rack for server or storage equipment?
A: At 6 inches depth, the CMR-45U06-B-SQM6 is not suited for servers or deep storage arrays, which typically require 24"–36" of rail depth. This unit targets passive and shallow-mount gear: patch panels, cable managers, and 1U network equipment.
Q: Are other depths and heights available in the CMR family?
A: Yes. The CMR family includes 10.5", 12", and 16.25" depth options and 52U and 59U heights. Confirm the correct MPN suffix for your project requirements before ordering.
The CMR-45U06-B-SQM6 comes up regularly in IDF closet and structured cabling buildouts where every inch of floor-to-ceiling depth matters. The 6-inch depth spec is the defining constraint here — it immediately disqualifies this unit for anything with a deep chassis, and that's exactly the point. If your project is predominantly patch panels, cable managers, and 1U switches, this rack fits the job precisely.
Technical Highlights:
- 6" depth: Shallow enough to mount flush against a wall with normal cable bend radius maintained behind the rails — a real factor in telecom closets where you're working with 12"–18" of total wall clearance.
- M6 square-hole rails: The 3/8" sq. M6 pattern is the universal standard. You won't need adapter kits or proprietary hardware — every structured cabling vendor ships compatible cage nuts and screws as standard pack-in.
- 45U height: Enough vertical space for a full IDF patch build — 24-port panels, horizontal cable managers, and a top-of-rack switch — without stepping up to a 52U or 59U unit and gaining height you don't need.
Deployment Considerations:
- Verify floor load and seismic requirements before finalizing placement — open-frame racks without side panels have different stability profiles than enclosed cabinets, and a 45U loaded with dense patch infrastructure adds up quickly.
- At 6" depth, the CMR-45U06-B-SQM6 cannot accommodate standard 1U servers or any device requiring more than approximately 4"–5" of chassis clearance behind the mounting ears. Scope your gear list against this constraint before ordering.
Best fit: secondary IDF closets, structured cabling distribution frames, and passive network gear buildouts where access from all sides is more valuable than front-door security and full equipment depth is never needed.
