Tripp Lite SR42UBMDEXP

Overview

The Tripp Lite SR42UBMDEXP is a 42U mid-depth expansion rack designed to extend an existing SmartRack row, providing additional space for servers, UPS systems, and network switches in data centers, server rooms, or network closets. With dimensions of 36 inches front to back and 24 inches wide, it accommodates most rack-mount equipment while maintaining efficient airflow and cable management. The rack supports up to 3,000 pounds when stationary and 2,250 pounds while rolling, making it suitable for dense hardware setups.

Key features

• Mounting rails adjustable in quarter-inch increments to fit equipment of varying depths and keep cables organized
• Removable, reversible, and lockable front and rear doors for flexible access and enhanced security
• Pre-installed casters and leveling feet simplify moving and stabilizing the rack during installation
• Vented top panel and open bottom design promote natural front-to-rear airflow and easy cable entry
• Integrated grounding points ensure safe bonding and help meet compliance requirements
• Side panels are excluded to allow direct baying to adjacent SmartRack cabinets, enabling easy side access for maintenance
• Robust frame construction supports heavy equipment loads while maintaining mobility and stability
• Five-year limited warranty provides confidence in long-term durability and performance

Key specs

• Height: 42U
• Depth: 36 inches (front to back)
• Width: 24 inches
• Weight capacity (stationary): 3,000 pounds
• Weight capacity (rolling): 2,250 pounds
• Mounting rail adjustment: quarter-inch increments
• Doors: removable, reversible, lockable front and rear
• Warranty: five-year limited

Connectivity and compatibility

This expansion rack is designed to seamlessly bay with standard Tripp Lite SmartRack cabinets, creating a continuous row without side panels separating units. Its dimensions and adjustable rails accommodate a wide range of rack-mount servers, UPS units, and network switches commonly used in enterprise environments. The open bottom allows cables to enter from floor or raised access areas without strain, supporting neat and efficient cable routing.

Installation and setup

Equipped with factory-installed casters, the rack can be easily rolled into position before locking down with leveling feet for stability. The adjustable mounting rails allow precise depth settings to match your equipment, reducing cable clutter and improving airflow. Removable and reversible doors provide flexible access options during installation and maintenance, while integrated grounding points simplify safety compliance.

Ideal uses and environments

This expansion rack fits well in high-density virtualization clusters, colocation facilities, and core network infrastructure setups where additional rack space is needed without sacrificing airflow or accessibility. Its sturdy construction and weight capacity make it suitable for heavy blade servers and storage arrays, while the open design supports efficient cooling and cable management in busy data center environments.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, and include all tags, manuals, accessories, and original, unaltered packaging. To start a return, please email us for approval. Items sent back without approval may be refused or returned to the sender. If any item is kept, its value will be deducted from the refund.

Non-returnable items include opened TVs, combos, or monitors 37″ or larger, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method. Please allow 5–7 business days for the credit to post. Shipping and handling are nonrefundable. If an item is used, incomplete, or not in its original condition, a 30% restocking fee may apply. Direct exchanges are not offered. To exchange an item, please purchase the replacement separately and return the original for a refund.

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We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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