Panduit R4P42CNWH 45RU 4-Post Rack - White Powder-Coated Steel with Cage Nut Rails

The Panduit R4P42CNWH delivers the load-bearing stability of a full cabinet with the front-and-rear access of an open rack—critical when you're mounting 45RU of switches, servers, and UPS gear that demand both weight capacity and service reach. Engineered for 2,500-pound UL-listed performance, this welded steel 4-post rack anchors enterprise IT rooms, security NOCs, and broadcast facilities where equipment density and cable discipline determine uptime. Cage nut EIA rails adjust across the 41.5-inch depth to fit shallow patch panels alongside deep blade servers, while the powder-coated white finish integrates into clean-room and office-visible environments without the industrial aesthetic of black steel.

Key Features

• UL 2416 listed for 2,500-pound static load—handles fully populated blade chassis, battery banks, and dense switch stacks
• 45RU vertical capacity with adjustable cage nut rails spanning 41.5 inches deep for mixed-depth equipment
• EIA/ECA-310-E compliant 19-inch mounting with numbered hole positions for fast, error-free installation
• Welded steel construction with powder-coated white finish for corrosion resistance and aesthetic flexibility
• 23.25-inch overall width fits standard data center hot/cold aisle layouts
• Cage nut rail design accepts toolless mounting hardware and accommodates both square-hole and threaded accessories
• Compatible with Panduit's full line of vertical and horizontal cable managers for structured media routing
• RoHS compliant for environmentally regulated deployments

The R4P42CNWH's 2,500-pound UL listing isn't marketing fluff—it's the certified static load you need when racking a mix of 2U servers (60–80 lbs each), managed PDUs, and battery backup modules that together approach a ton of gear in a single frame. The welded steel uprights resist deflection under asymmetric loads (front-mounted switches plus rear-mounted cable managers), and the 41.5-inch depth accommodates both legacy 24-inch servers and modern 36-inch storage arrays without front-rail extensions or adapter brackets that compromise structural integrity. Cage nut rails deliver EIA universal hole spacing at 0.625-inch vertical increments, numbered in silk-screened RU markers so you can place equipment to the spec without counting from the floor. Unlike square-hole racks that require clip nuts or tool-based cage nut insertion, Panduit's pre-threaded cage nut design accepts snap-in hardware for faster deployments—critical when you're standing up 12 racks in a weekend migration. The 23.25-inch overall width respects standard 24-inch tile spacing in raised-floor datacenters, leaving room for side-mounted vertical cable managers without blocking adjacent rack airflow.

This rack fits the gap between enclosed cabinets—which trap heat and block access—and 2-post telco racks that can't handle the moment loads of deep servers. Security integrators use it for central-station NVR builds where you're stacking 4U recording servers, 2U managed PoE switches, redundant UPS modules, and KVM drawers in a single frame that needs daily drive-swap access without removing side panels. Broadcast and AV teams deploy it in machine rooms where Dante audio processors, video routers, and control-system controllers share vertical space with IT network gear, all requiring cable access from both front and rear. The white powder coat matters in office-adjacent server closets and hospital IT rooms where exposed black racks read as unfinished infrastructure; the finish also resists oxidation in coastal or high-humidity environments better than bare or lightly coated steel. The open frame design permits horizontal airflow for passive convection cooling, reducing HVAC load in small rooms, while still providing the four-point mounting stability required for seismic-rated installations when anchored per local codes.

UL 2416 certification and EIA/ECA-310-E compliance ensure this rack meets the load and dimensional standards enforced by insurance underwriters, building inspectors, and enterprise IT policies—essential when your contract requires stamped equipment lists or when you're supporting mission-critical infrastructure that can't fail due to structural shortcuts. RoHS compliance keeps you aligned with federal and state e-waste regulations, particularly in California, New York, and EU-based deployments. The cage nut rail system future-proofs the installation: as equipment generations change from square-hole to round-hole mounting, you're not locked into a single fastener type, and Panduit's accessory ecosystem—vertical wire managers, horizontal ladder racks, blanking panels—all mount without adapters or custom fabrication.