The UNIRAILS1U 1U Fixed 19-inch Adjustable Depth Universal Server Rack Rails enable you to fit non-rack mountable equipment (weight up to 25kg/57lbs.) into a standard 19-inch rack. Featuring sturdy, cold-rolled steel construction, adjustable depth configurations for varying rack sizes, horizontal equipment supports, and multiple mounting hole patterns to secure your equipment, this durable 19 rack rails kit makes mounting your non-rackmount equipment quick and easy! Ideal for rack mount servers missing their original rails. Easily mount any 19 rackmount case into 4 post server racks. Perfect for securely installing 19 non-rackmount equipment into server racks.