Middle Atlantic SRSR-4-21 Rotating Rail System 21U

Name: Middle Atlantic SRSR-4-21 Rotating Rail System 21U
Brand: Middle Atlantic
SKU: SRSR-4-21

250 LB

Optimize Your Rack Space with the Rotating Rail System Introducing the Middle Atlantic SRSR-4-21 Rotating Rail System. This system is designed to maximize accessibility and organization within your rack. With a durable black powder coat finish, this 21U, 19" system offers a robust solution for ma...

$1,244.00*

✓ In Stock on Amazon.com

View on Amazon

*Price sourced from Amazon.com. Last updated:Aug 27, 2026.Price and availability are subject to change — details.

Affiliate Disclosure: As an Amazon Associate, Studio Supplies earns from qualifying purchases made through links on this page, at no additional cost to you. This helps support our editorial team.

Notice a mistake? Let Us Know

Overview

Optimize Your Rack Space with the Rotating Rail System

Introducing the Middle Atlantic SRSR-4-21 Rotating Rail System. This system is designed to maximize accessibility and organization within your rack. With a durable black powder coat finish, this 21U, 19" system offers a robust solution for managing your equipment.

Specifications:

Model: SRSR-4-21
Finish: Black Powder Coat
Height: 21U
Width: 19"
Capacity: 250 lb
Type: 4 Slide SRSR

Key Features

21 SPACE ROTATING SLIDING RAIL SYSTEM, 250 LB.

CAPACITY4 SLIDE SRSR, 21 USEABLE

Specifications

Model

SRSR-4-21

Rack Units

21U

Capacity

250 lbs

System Type

Rotating Sliding Rail System

Number of Slides

4 (SRSR)

Usable Spaces

Frequently Asked Questions

How many rack units (U) does this Middle Atlantic system accommodate?

This Middle Atlantic SRSR-4-21 Rotating Rail System offers 21 usable rack spaces for professional audio equipment.

What is the weight capacity of this rotating rail system?

The system is designed to support a substantial load with a 250 lb capacity for various components.

What is the primary benefit of the rotating sliding rail design?

The rotating sliding rail system allows for easy access to the back of installed equipment, simplifying cabling and maintenance without removal.

Is this system suitable for heavy studio or live sound gear?

Yes, with a 250 lb capacity, it is engineered to securely hold a significant amount of professional audio and video equipment.

Does the rail system offer stability during rotation and extension?

As a 4-slide SRSR system, it is built to provide stability and smooth movement when accessing or positioning rack-mounted components.

Strengths & Trade-offs

👍 Pros

Provides 21 usable rack spaces, offering ample room for a substantial amount of audio equipment within a single unit.
Features a rotating sliding rail system, allowing for convenient access to the rear of installed components for wiring and maintenance.
Boasts a robust 250 lb capacity, ensuring secure support for heavy professional audio and video gear.
Designed as a 4-slide SRSR system, which contributes to its stability and smooth operation when extended or rotated.
Optimizes workflow by simplifying cabling and configuration changes without needing to unmount equipment.

👎 Cons

The system's capacity is fixed at 21U, which may be excessive for smaller setups or insufficient for very large installations.
Its substantial 250 lb capacity suggests a potentially heavy base unit even without equipment, impacting portability.
Specific dimensions or materials beyond "sliding rail system" are not provided, limiting detailed planning for tight spaces.
Only "4 slide SRSR" is mentioned, without detail on the mechanism, which could be a specific design that may not suit all preferences.
Being a physical rack system, it requires a dedicated installation space, potentially large due to its 21U size.