Eaton Tripp Lite Series 25U SmartRack Standard-Depth Half-Height Rack Enclosure, Expansion Version, No Side PanelsMeet a scalable backbone for data center deployments with the Eaton Tripp Lite Series SR25UBEXP SmartRack expansion enclosure. Designed to be paired with adjacent cabinets in bayed rows, this 25U SmartRack expansion model provides a streamlined path to modular, efficient cooling and cabling, while keeping the front doors and roof in place for security and protection. With integrated baying tabs and a no side panel design, its the ideal expansion