Tripp Lite 42U Standard-Depth 4-Post Premium Open Frame Rack, No Doors, Side Panels or Top Panel

Overview

The Tripp Lite SR42UBEXPNDNR3 is a 42U open frame rack designed to securely hold standard 19-inch servers, switches, power distribution units, and other rack-mounted equipment. Its four-post design leaves all sides open, providing easy access for cabling and optimal airflow. With a robust 3000-pound load capacity, this rack supports both stationary setups and mobile use on its included casters, making it versatile for data centers, test labs, and audiovisual installations.

Key features

• Open frame design without doors, side panels, or top panel allows unrestricted access to equipment and cables.
• Fully assembled upon delivery with heavy-duty 3-inch casters for easy mobility and optional leveling feet for stable, permanent installation.
• Adjustable mounting rails with a printed depth index accommodate equipment depths up to 37 inches, ensuring compatibility with a wide range of hardware.
• Includes 50 M6 screws and 50 M6 cage nuts to enable immediate mounting of devices without additional hardware.
• Rear posts support up to four vertical power distribution units or cable managers, helping organize power and cabling efficiently.
• Built-in baying tabs allow multiple racks to be securely aligned in a straight row, optimizing space in server rooms or labs.
• Front and rear grounding points facilitate compliance with electrical safety standards.
• Durable powder-coated finish resists scratches and maintains a professional appearance over years of use.
• Designed to handle heavy loads safely whether stationary or rolled across floors, supporting up to 3000 pounds.

Key specs

• Rack height: 42U
• Mounting width: Standard 19 inches
• Maximum usable depth: 37 inches
• Load capacity: 3000 pounds (stationary or rolling)
• Caster size: 3 inches
• Included hardware: 50 M6 screws and 50 M6 cage nuts
• Finish: Powder coated
• Warranty: Five year limited

Connectivity and compatibility

This rack is compatible with a wide range of standard 19-inch rack-mount equipment, including servers, switches, and power distribution units. The adjustable mounting rails accommodate devices of varying depths up to 37 inches, making it suitable for most enterprise and lab hardware. Rear posts accept vertical PDUs or cable managers, which helps maintain organized power and cabling setups.

Installation and setup

The rack arrives fully assembled with casters attached, allowing a single person to easily move it through standard doorways and position it as needed. Once in place, the casters can be locked or replaced with included leveling feet for a stable, permanent setup. The printed depth index on the mounting rails simplifies adjusting the rack to fit your equipment precisely, speeding up installation and reducing setup errors.

Ideal uses and environments

This open frame rack is well suited to growing data centers that require frequent equipment changes and easy access for maintenance. It also fits test labs where layouts evolve regularly and audiovisual installations that benefit from open cable paths. Its high load capacity and mobility make it a strong choice for environments where heavy equipment needs to be moved or reconfigured often.