Store your servers, network & telecommunications equipment in this 12U open-frame rack. The 4POSTRACK12 12U Adjustable 4 Post Server Equipment Open Frame Rack Cabinet provides a durable, open air housing for rackmount servers & networking equipment. This TAA compliant product adheres to the requirements of the US Federal Trade Agreements Act (TAA), allowing government GSA Schedule purchases. The equipment rack/cabinet features heavy gauge mounting rails to ensure a stable installation platform & adjustable posts for flexible installation. The 12U open frame rack is compliant with EIA-RS-310C standards, offering a universal design that's compatible with equipment from popular manufacturers. Plus, the equipment rack is flat-packed, reducing shipping costs & simplifying handling & assembly. For added versatility, Star Tech.com offers an optional 4 Piece Caster Ki (4POSTCASTER) that can be installed on the bottom of the 12U server rack, making it easier to re-position the cabinet/rack as needed for future uses.