Features 4-post rack mount rails that can effortlessly support 1U of equipment. Adjustable to any desired length between 20.5 and 36 inches for a customized fit. Comes with square hole rack attachment hardware included ensuring easy installation. Capable of supporting weights of up to 150 lbs providing ample strength and stability. Tripp Lite 4-Post Adjustable Rackmount Shelf Kit Universal Smartrack 1U â?? the ultimate solution for your server organization needs. UPC: 132017870441 EAN: 0069060200034 Item Condition: New Binding: Personal Computers Attach the 4-post rack mount rails to your server cabinet securely. Adjust the length of the shelf kit to your desired measurement between 20.5 and 36 inches. Utilize the provided square hole rack attachment hardware for a stable installation. Place your equipment weighing up to 150 lbs on the shelf with confidence....