DESIGNED FOR SHALLOW DEPTH RACKS: Shortened inner rails prevent protrusion beyond rear uprights for seamless installation in shallow racks COMPATIBLE WITH HP PROLIANT DL20 GEN10: Specifically designed to support HP ProLiant DL20 Gen10 servers in any EIA 19' standard rack VERSATILE MOUNTING OPTIONS: Supports 4-post racks with mounting depths of 14.56' to 30.26' and 2-post racks with mounting depths of 3' to 6' LONG-LASTING DRY SLIDE RAILS: Dry slide rails provide greater durability and longevity compared to traditional slide rails UNIVERSAL RACK COMPATIBILITY: Fits square threaded or through-hole mounting and supports L C and other rack upright shapes