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. Durability: SPCC commercial cold-rolled steel with powder coating for long term durability. Supports weight load up to 80 lbs. Versatility: Adjustable mounting depth of 24.2 27.4in provides flexibility to fit various installation of rack and cabinets. Rack shelf is 23.6" deep and extends 12.75". 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.