Features: GEN11 AND GEN12 COMPATIBILITY: Designed for HPE ProLiant DL385 Gen11 and DL340 Gen12 server models^^MOUNTING DEPTH RANGE: 4-post adjustable depth of 12–39.5 in; 2-post center mount depth of 3–6 in^^UNIVERSAL RACK FIT: Installs in 19 in EIA-310 compliant 2-post and 4-post racks; no OEM rails needed^^SERVICEABLE DRY SLIDE DESIGN: Smooth dry slide rails enable easy equipment access without ball-bearing wear^^ROBUST CONSTRUCTION: Compatible with L, C, and ? upright shapes; fits square, round, and threaded rack holes