Panduit R4PCNWH 45RU 4-Post Open Rack

The Panduit R4PCNWH delivers the structural integrity of a full cabinet with the front-and-rear accessibility of an open frame, solving the ventilation and service-access problems that plague enclosed racks in high-density server and network environments. This 45RU rack provides 78.75 inches of vertical equipment mounting space on adjustable E-rails with pre-printed RU numbering and cage nut mounting holes on 0.625-inch EIA/ECA-310-E spacing. The white powder-coated finish makes this rack suitable for office IT closets, broadcast studios, and any installation where appearance matters as much as load capacity. UL-listed to support 2,500 pounds of static load, the R4PCNWH handles enterprise servers, UPS systems, fiber patch panels, and PoE switches without requiring floor reinforcement in most commercial buildings.

Key Features

• 2,500 lb UL-Listed Load Capacity: Welded steel frame construction certified under UL 2416 for equipment loads up to 2,500 pounds static, supporting dense server configurations, blade chassis, and battery backup arrays without supplemental floor bracing in standard commercial construction
• 45RU Vertical Mounting: Provides 78.75 inches of usable equipment space across EIA/ECA-310-E standard 19-inch mounting rails with pre-printed RU numbers for fast visual identification during installs and MAC (move/add/change) work
• Adjustable Cage Nut E-Rails: Four-post design with front-to-back depth adjustment accommodates equipment from 18 to 32 inches deep; universal square-hole cage nut mounting eliminates the need for tapped holes and allows tool-free repositioning of equipment mounting points
• 30-Inch Nominal Depth: Overall rack depth of 30 inches strikes the balance between equipment compatibility (fits most enterprise servers and network switches) and floor-space efficiency in tight server rooms or network closets
• 23.25-Inch Overall Width: Standard 19-inch EIA equipment mounting width with additional frame structure brings total width to 23.25 inches, allowing side-by-side installation on 24-inch floor tiles with minimal wasted aisle space
• White Powder-Coated Finish: Durable powder coat over welded steel resists chipping and corrosion while providing a clean appearance for office-visible installations, broadcast facilities, and healthcare IT rooms where black racks would be visually intrusive
• Panduit Cable Management Compatibility: Pre-engineered to accept all Panduit 84-inch vertical cable managers and 19-inch horizontal cable managers, enabling structured front-to-back and top-to-bottom cable routing without drilling custom mounting holes
• Open Frame Airflow: Four-post open design eliminates the hot-spot accumulation common in enclosed cabinets, allowing front-to-back equipment airflow without requiring rack-mounted fan trays in most HVAC-controlled environments

The R4PCNWH's welded steel construction uses 14-gauge vertical posts and 16-gauge horizontal cross-members, creating a torsionally rigid structure that prevents the front-to-back flex seen in bolt-together racks under heavy equipment loads. The adjustable equipment rails slide on precision-machined mounting tracks, allowing you to set the front-to-back depth anywhere from 18 to 32 inches to accommodate shallow patch panels in the front positions and deep servers toward the rear without leaving equipment cantilevered beyond the rear posts. Each rail is pre-printed with RU numbers in 1U increments, eliminating the tape-measure-and-marker ritual during equipment installation and making it easy to match equipment layouts to rack elevation diagrams during audits or troubleshooting. The cage nut mounting system uses standard square-hole EIA spacing on 0.625-inch centers, accepting any M6 or 10-32 cage nut and allowing you to reposition mounting hardware without tools—a critical time-saver when you need to insert a 1U switch into a fully populated rack and discover the mounting holes are off by half a rack unit.

This rack is built for multi-vendor IT and A/V installations where you're mounting a mix of Dell/HP/Cisco servers, Juniper/Arista switches, APC UPS systems, and fiber patch panels in a single frame. The 30-inch depth handles most enterprise 1U and 2U servers (typically 28-30 inches deep with cable-management arms) while keeping the rack footprint under 36 inches front-to-back when you account for front door swing clearance and rear cable bend radius. The 2,500-pound UL rating means you can fully populate all 45RU with heavy equipment—four 150-pound blade chassis, six 200-pound UPS modules, or a full stack of 1U servers with redundant power supplies—without worrying about structural failure or needing to anchor the rack to a raised floor. The white finish is powder-coated over a phosphate pre-treatment, giving it the corrosion resistance needed in humid environments (hospital IT closets, coastal data centers) while maintaining a clean appearance in settings where the IT infrastructure is visible to building occupants. In broadcast facilities and post-production studios, the white finish blends with the room rather than creating a visual black hole, and in healthcare settings it matches the clinical aesthetic without requiring custom enclosures.

The R4PCNWH ships flat-packed for freight efficiency and assembles with basic hand tools in 30-45 minutes with a two-person crew. Panduit provides detailed assembly instructions with torque specifications for all structural fasteners, and the pre-drilled mounting holes are CNC-punched to ensure vertical alignment between front and rear rails—eliminating the rail-to-rail misalignment issues that make it impossible to mount equipment without cross-threading screws. The rack is RoHS compliant and meets EIA/ECA-310-E dimensional standards, ensuring compatibility with any 19-inch rack-mount equipment regardless of manufacturer. UL 2416 certification covers both static load capacity and structural stability under seismic conditions, which matters in California data centers and other regions where local code requires seismically rated racks. The rack accepts all Panduit horizontal and vertical cable managers without modification, allowing you to build a structured cabling system that keeps power, data, and fiber separated and prevents the cable-spaghetti accumulation that turns routine MAC work into an all-day project. For integrators managing mixed-vendor server and network deployments in IT closets, data centers, or equipment rooms, the R4PCNWH provides the load capacity, adjustability, and cable-management compatibility to support enterprise-grade installations without the thermal and access constraints of enclosed cabinets.