Middle Atlantic 12 Space Rotating Sliding Rail System 300 Lb Capacity - SRSR-4-12

Middle Atlantic SRSR-4-12 12U Rotating Sliding Rail Rack System

Overview

The Middle Atlantic SRSR-4-12 is a 12 RU in-cabinet slide-out and rotating rack system designed for installations where rear-panel access is obstructed by the cabinet wall or tight equipment runs. It mounts inside an existing enclosure, slides out on rails, and rotates to expose the back of every unit in the rack — eliminating the need to pull equipment or fish cables in the dark. The SRSR-4-12 supports up to 250 lbs of loaded gear across 12 rack spaces, with a usable depth of 17.25 in (43.8 cm) and usable height of 21 in (53.3 cm). Overall footprint is 19.13 in wide × 24 in tall × 19.14 in deep, sized for standard 19-inch cabinet interiors. Standard 10-32 rack rail threading means it accepts virtually any rackmount hardware without adapter plates. Flat black powder coat finish integrates cleanly with most Middle Atlantic and third-party enclosures. TAA-compliant and manufactured in the USA, making it eligible for federal and government-funded deployments where domestic origin and trade compliance are required. The SRSR-4-12 is the right call in any rack deployment — NVR stacks, patch infrastructure, AV/security head-end closets — where technicians need routine rear-access without a full cabinet teardown.

Compatibility

Designed for use inside Middle Atlantic enclosures and any standard 19-inch rack cabinets with sufficient interior depth to accommodate the 19.14 in slide-out travel. The 10-32 rail thread is the industry standard for NVRs, patch panels, power distribution units, and AV/security equipment from virtually all manufacturers. Verify your host cabinet's interior usable depth exceeds the SRSR-4-12's 19.14 in depth requirement plus any clearance needed for cable management behind the rotating section. Not intended as a standalone open-frame rack — requires an enclosing cabinet for structural support and proper slide operation. Compatible with standard rackmount accessories using 10-32 cage nuts or pre-threaded 10-32 rails.

Installation Notes

Shipping weight is 67.9 lbs (30.8 kg) — plan for two-person installation when mounting inside an upright cabinet. The slide-out mechanism requires adequate clearance in front of the cabinet door threshold; measure door swing and aisle depth before install. The 250 lb weight capacity is the loaded rack limit — factor in the combined weight of all mounted equipment before populating. Usable height of 21 in (53.3 cm) across 12 RU means standard 1U and 2U equipment installs without modification; verify any deep equipment against the 17.25 in usable depth.