HEAVY-DUTY CAPACITY: Supports up to 500 lbs (227 kg) for storing large tower servers, heavy switches, and non-rack-mountable equipment GENEROUS DIMENSIONS: Shelf surface measures 28' L x 17.6' W (711 x 447 mm), providing ample space for bulky equipment EXTENDED DEPTH: Shelf depth of 28' (711 mm) with adjustable mounting depth of 18 - 30' (457 - 762 mm) for versatile installations ROBUST SLIDING MECHANISM: Equipped with heavy-duty ball bearing slides for smooth and reliable operation UNIVERSAL FIT: Compatible with any 4 Post rack, including racks with square, round, and threaded holes