HEAVY DUTY SUPPORT: Designed for 2-post relay racks; supports up to 500 lbs ideal for large equipment VERSATILE APPLICATIONS: Perfect for SAN and NAS appliances UPS units large chassis servers and blade centers from IBM Dell and HP SOLID CONSTRUCTION: Made from durable solid steel with a zinc-plated finish for strength and longevity GENEROUS DIMENSIONS: 29.15-inch depth and compatible with 10-32 and 12-24 threaded racks REQUIRES CONVERSION BRACKETS: Compatible with 2POST-4UKIT 2POST-5UKIT and 2POST-7UKIT for installation (sold separately)