Office Supplies & Equipment. Pro Audio & Musical Gear. Tripp Lite Rack Enclosure Cabinet Standard Sliding Shelf 100lb Capacity – Black. Tripp Lite’s SmartRack SRSHELF4PSL is a standard sliding shelf for installation in rack cabinets. The SRSHELF4PSL has a 28.5 in. / 72.4cm depth 29.5 in. / 74.9cm including handle and can support up to […]