2POST AND 4POST COMPATIBLE: Ships ready for 2Post (3-6 uprights) and 4Post racks with adjustable depth of 1832 PERFECT FIT FOR HP SERVERS: Designed for HP DL385 and DL380 Gen 10 Plus servers (P/N: 122-7158) DURABLE DRY SLIDE DESIGN: High-quality dry slides last longer than ball-bearing kits for extended reliability EASY MAINTENANCE ACCESS: Slide rails extend equipment out of the rack for hassle-free servicing and adjustments ROBUST CONSTRUCTION: Made from 16GA galvanized steel with zinc-plated inner rails for durability and stability