The AS3-22 rack mounted shelf is a versatile and durable solution for mounting heavy equipment in racks. It has a front to rear mounting adjustment range from 19-1/2in to 28in deep, and it fits in racks with a minimum 19-1/2in from front to rear rail. The rack mounted shelf is vented and can rackmount most video decks and tower CPUs. With a heavy-duty 4-point mounting system, it supports up to 300 lbs, making it ideal for heavy equipment. The shelf surface is 22-1/4in deep, providing ample space for equipment.