Tripp Lite 42U SmartRack 4-Post Mid-Depth Open Frame Rack, Expansion Version, no sides, doors or roof

The Tripp Lite SR42BMDEXPNDNR3 is a four-post open frame rack that holds standard 19-inch servers, switches, and other network gear. It arrives as an expansion model without sides, doors, or a roof, so airflow is unrestricted and you can reach equipment from any direction.

This rack supports up to 42U of equipment and offers a usable depth of 36 inches, enough room for most mid-depth servers. A width of 24 inches lines up with common data center floor tiles and cable trays. The steel frame carries up to 3000 lbs whether the rack is set in place or rolled across the floor, which covers even dense hardware configurations.

Heavy-duty casters come pre-installed, so one person can wheel the rack through a standard doorway and into position. Once in place, the built-in leveling feet stabilize the frame on uneven floors. Inside, front and rear mounting rails slide forward or back and include a printed depth index that makes it simple to align rail depth with the hardware manufacturer’s guidelines. Tripp Lite includes fifty M6 cage nuts and screws, so you can start loading equipment right after unboxing.

Integrated grounding points simplify bonding to a facility ground, and tool-less accessory rails accept cable managers, vertical power strips, or airflow panels without extra hardware. These touches help administrators finish installs faster and keep cabling tidy.

The SR42BMDEXPNDNR3 fits well in data center rows that already have aisle containment, network closets where doors are unnecessary, or lab environments that demand fast hardware swaps. Any team that values open access, robust load capacity, and straightforward assembly will appreciate the practicality of this rack.

• 42U rack height with 36-inch depth and 24-inch width accommodates mid-depth servers and network devices
• Supports up to 3000 lbs in both stationary and rolling scenarios
• Open frame allows full access for installation, cabling, and maintenance
• Pre-installed heavy-duty casters and adjustable leveling feet for easy movement and stable placement
• Front and rear mounting rails adjust quickly and feature a clearly printed depth index
• Includes 50 M6 cage nuts and 50 M6 screws for immediate equipment mounting
• Integrated grounding points help meet safety requirements
• Tool-less accessory mounting rails accept cable managers and other add-ons without extra hardware
• Backed by a 5-year limited warranty from Tripp Lite