Middle Atlantic 4 Slide Srsr 26 Space - SRSR-4-26

Middle Atlantic SRSR-4-26 26RU Slide-Out Rotating In-Cabinet Rack

Overview

The Middle Atlantic SRSR-4-26 is a 26-space slide-out rotating rack system engineered for integrators who need full rear access to densely populated equipment cabinets without pulling gear or disconnecting cables. At 26 RU of usable space and a 250 lb weight capacity, this unit handles fully loaded network video recorders, managed switches, and dense patch fields without compromise. If you've ever shimmed yourself behind a rack to trace a cable or swap a failed drive on a live NVR, the SRSR-4-26 solves that problem structurally — it slides out and rotates so the rear panel faces you at a comfortable working angle. It is manufactured in the USA and carries TAA compliance, which matters on federal, state, and education contracts where country-of-origin documentation is a line-item requirement.

Key Features

• 26 RU Capacity (45.5 in usable height): Enough vertical space to fit a full AV or security head-end — NVR, UPS, patch panel, switches, and amplifiers — without stacking compromises. The 45.5 in usable height (115.6 cm) is the deployable number; the overall 48.5 in frame accounts for the rail system and slide hardware.
• 250 lb Weight Capacity: A fully loaded 26U rack with 1U switches, a 4U NVR, a rackmount UPS, and cable management can easily hit 150–200 lbs. The 250 lb (113.4 kg) rated load gives you real headroom rather than operating near the ceiling. Overloading a slide-out mechanism is a common field failure; this rating is where you want to be for a production rack.
• Slide-Out and Rotating Mechanism: The defining capability of the SRSR series — the entire rack assembly pulls forward out of the cabinet and rotates, giving you direct rear access without disconnecting a single cable. This is the correct solution for equipment rooms where rear cable management is permanent and technicians visit regularly for maintenance.
• 17.25 in Usable Depth (43.8 cm): Accommodates most 1U–4U rack-mount equipment. Verify your deepest device's rack-mount depth (not chassis depth) before spec'ing — some enterprise UPS units and high-density switches run 24–30 in and will NOT fit. The 17.25 in usable figure is the governing spec, not the 19.14 in overall depth.
• 10-32 Rack Rail Threading: The standard for audio/video and security head-end equipment. Virtually all NVRs, managed switches, patch panels, and rackmount UPS units ship with 10-32 hardware. If you're integrating server-class gear that uses M6 cage nuts, you'll need an adapter rail — plan accordingly.
• Flat Black Powder Coat Finish: A durable, non-reflective finish appropriate for both exposed AV millwork and enclosed equipment rooms. Powder coat resists the minor abrasion that comes with regular slide-and-rotate cycles better than painted finishes.
• TAA Compliant, USA Manufactured: Meets Trade Agreements Act requirements for government and education procurement. Country of origin is USA. If your project has a Buy American or TAA clause, the SRSR-4-26 clears that requirement without a waiver request.
• In-Cabinet Rack Type: Designed to install inside an existing enclosure — not a standalone open-frame or wall-mount unit. The host cabinet must be sized to accept the 19.13 in width and 48.5 in height of the SRSR-4-26 assembly. Measure your cabinet's internal usable height and width before ordering.

Integration and Compatibility

The SRSR-4-26 installs inside a compatible Middle Atlantic enclosure sized to accept a 26U slide-out assembly. The 19.13 in (48.6 cm) width and 48.5 in (123.2 cm) overall height are the critical fit dimensions — confirm your enclosure's internal clearance against both before spec'ing. The 10-32 rail threading is compatible with the vast majority of commercial security and AV rack-mount equipment. The 17.25 in usable depth covers most NVRs, switches, patch panels, and 1U–2U UPS units; deep-chassis enterprise servers or extended-depth UPS units may require depth verification. For projects involving PoE switches and head-end consolidation, plan cable management depth carefully — the slide-and-rotate motion requires enough cable slack at the rear to travel through the full rotation arc without binding. Consult the rack systems category for compatible enclosures and accessories. The SRSR-4-26 (often searched as SRSR 4 26) is sourced factory-new with no grey-market or parallel import exposure.

Frequently Asked Questions

Q: What is the weight capacity of the SRSR-4-26?

A: The SRSR-4-26 is rated for 250 lbs (113.4 kg) of loaded equipment. This covers the majority of fully populated 26U security and AV head-end configurations.

Q: Is the SRSR-4-26 TAA compliant?

A: Yes. The SRSR-4-26 is TAA compliant and manufactured in the USA, making it suitable for federal, state, and education projects with Trade Agreements Act or Buy American requirements.

Q: What is the usable depth inside the SRSR-4-26?

A: The usable depth is 17.25 inches (43.8 cm). The overall unit depth is 19.14 inches — the 17.25 in figure is what you have available for equipment. Verify your deepest device's rack-mount depth against this number before ordering.

Q: Does the SRSR-4-26 work as a standalone open-frame rack?

A: No. The SRSR-4-26 is an in-cabinet rack type — it is designed to install inside a compatible enclosure. It is not a freestanding open-frame or wall-mount unit.

Q: What rack rail threading does the SRSR-4-26 use?

A: The SRSR-4-26 uses standard 10-32 rack rail threading, which is compatible with virtually all NVRs, managed switches, patch panels, and rackmount UPS units used in security and AV installations. M6 cage nut equipment will require an adapter.

Q: How much cable slack do I need to allow for the slide-and-rotate motion?

A: The evidence does not specify a cable slack figure. As a general installation practice, rear cables must have enough slack to travel through the full rotation arc without binding — consult Middle Atlantic's installation documentation for the specific rotation radius of the SRSR-4-26 before finalizing cable runs.

James Everett

The SRSR-4-26 is one of those pieces of infrastructure that pays for itself the first time a technician has to swap a failed drive on a live NVR at 2 a.m. The slide-out rotating mechanism is the entire value proposition — 26 RU at 250 lb capacity means you can fully populate this thing with production security gear and still have a technician working the rear panel without disconnecting a cable or pulling equipment. That 250 lb rating is not a soft number; it's what separates this from lesser slide systems that start binding or deflecting under real loads.

Technical Highlights:

• 250 lb Load Rating: At full 26U population with NVRs, switches, UPS, and patch panels, real-world loads hit 150–200 lbs routinely. The 250 lb (113.4 kg) rated capacity gives you the headroom to avoid operating near the mechanical limit — where slide mechanisms fail in the field.
• 17.25 in Usable Depth: This is the governing spec for equipment fit, not the 19.14 in overall depth. Most 1U–4U NVRs and managed switches fit comfortably; verify any deep-chassis UPS or enterprise switch before specifying. Getting this wrong means a return after installation.
• TAA / USA Manufacture: On government and education projects, TAA compliance is a procurement gate, not a nice-to-have. The SRSR-4-26 clears it without a waiver, which simplifies the submittal package considerably.

Deployment Considerations:

• The host enclosure must be sized for 19.13 in width and 48.5 in overall height — measure internal clearance, not nominal cabinet size. A 26U cabinet with internal bracing can fall short of the 48.5 in needed for the slide assembly to seat correctly.
• Cable slack planning is non-negotiable. Every rear cable run must have enough free travel to follow the full rotation arc without binding. Integrators who pre-cut cable runs tight to a static rack and then install a slide-out system will be reworking those runs. Build slack in at the design stage.

This unit is the right spec for a permanent head-end room — courthouse AV/security consolidation, school district surveillance closet, or any installation where the rack is fully populated, access is periodic, and the technician working it may not be the one who built it. For temporary or frequently reconfigured installs, a standard open-frame rack is simpler and cheaper. The SRSR-4-26 earns its place where maintenance access to a live, cabled rack is a recurring operational requirement.