Middle Atlantic RSH4S3XX Custom Rack Shelf, 20.5" Deep, 3U RMS, Black Textured

Optimize rack organization and device protection with the Middle Atlantic RSH4S3XX custom rack shelf by Legrand. Ideal for AV, IT and security installations, this 3U rack shelf provides a stable platform for heavy servers, NVRs/DVRs, switches and power supplies. At 20.5 in deep with a durable black textured finish, the shelf accommodates deep equipment while resisting wear and preserving a tidy, professional cabinet appearance.

Built to fit a 3U RMS opening, the RSH4S3XX promotes better airflow and cable routing to help maintain optimal cooling for surveillance and monitoring systems. Its solid, low-profile design reduces vibration and sag, protecting critical electronics in high-use environments. Compatible with standard racks, the shelf speeds installation and simplifies maintenance for integrators and IT teams managing security, networking and monitoring deployments.

Add the Middle Atlantic 3U rack shelf to your next project to improve equipment support, organization and serviceability. Ideal for CCTV racks, server closets and network cabinets—order now or include it on your BOM for immediate deployment.

• Stable, low-profile platform that secures servers, NVRs, DVRs and networking gear to reduce rack clutter and improve equipment reliability.
• Designed for a 3U RMS opening with 20.5 in depth to accommodate deep surveillance recorders, power supplies and large routers.
• Rugged black textured finish resists scratches and maintains a professional appearance in security and IT environments.
• Solid construction minimizes vibration and sag, protecting sensitive monitoring and surveillance electronics during 24/7 operation.
• Simplifies installation and service access with compatibility for standard racks, helping integrators speed deployments and reduce downtime.