| Tripp Lite 42U Rack Enclosure Cabinet Side Panels Cable Pass Through Slots The SmartRack SR42SIDEPT is a 2 pack side panel for the standard depth SR42UB - where cables need to pass from cabinet to cabinet. The panels can be used as replacements for an expansion cabinet (SR42UBEXP) where the needs have changed and a side panel... more | | $193.57 FREE shipping go to store |