Compatibility: Fits all standard 19" server racks for easy peripheral and equipment access. Sliding rail has locking feature. Compact Ergonomics: Adjustable compact form factor ideal for adding non-rackmount equipment and peripherals in office, studio or home applications. Used as a shelf or drawer. Durability: SPCC commercial cold-rolled steel with powder coating for long term durability. Heavy duty construction: shelf 1.2mm SPCC steel; Mounting bracket 2mm SPCC steel. Supports weight load up to 120 lbs. Versatility: Rack shelf is 14-inch (360mm) deep. Adjustable Mounting Depth 14.4-15.5" Reversible installation. Heavy duty ball bearing slides, with position lock function. Easy to Use: Premium quality sliding shelf extends and allows easy access to the rear side of device. Slotted vent design provides good ventilation to keep devices cool.