Tripp Lite SmartRack 4-Post 1U Universal Adjustable Rack-Mount Shelf Kit

The Tripp Lite 4POSTRAILKIT1U is a 1U shelf kit built for four-post racks that need dependable front-to-rear support for heavy gear. It forms a solid base for equipment with a 17.5 inch wide chassis, making it a practical way to hold UPS systems, battery packs, servers, or deep network appliances without giving up additional rack space.

The rails adjust from 20.5 to 36 inches, so the kit fits shallow wall-mount cabinets as well as full-depth data center enclosures. Once set to the right depth, the steel structure supports up to 150 pounds, keeping even weighty devices secure and level.

Because the rails cradle the equipment along its entire length, airflow remains unobstructed and rear cabling stays easy to reach. This design suits IT staff who frequently swap hardware or need quick access for maintenance in server rooms, branch offices, or home labs.

All required mounting hardware for square-hole racks is in the box, so installation takes only a few minutes with standard tools. The kit is RoHS compliant and backed by a five-year limited warranty, giving facilities managers confidence in both its environmental profile and long-term reliability.

Highlights:

• 1U shelf kit for four-post racks
• Rails extend from 20.5 to 36 inches to match different rack depths
• Supports equipment up to 150 lbs (68 kg)
• Fits 17.5 inch wide rectangular chassis
• Includes mounting hardware for square-hole racks
• RoHS compliant design
• Backed by a five-year limited warranty