What is the size of the 2U cabinet

2U is twice the size of 1U,which is 8.89cm

1. U is a unit that represents the external dimensions of a rack power supply, abbreviated as unit. The detailed dimensions are determined by the Electronic Industries Association (EIA), an industry group.

2. The reason for specifying the size of the industry power supply is to maintain the appropriate size for it to be placed on an iron or aluminum rack. There are screw holes on the rack to fix the power supply, so that it can align with the screw holes on the power supply and be fixed with screws to facilitate the space required for installing each power supply.

3. The specified dimensions are the width (48.26cm=19 inches) and height (multiples of 4.445cm) . Due to its width of 19 inches, racks that meet this requirement are sometimes referred to as "19 inch racks". The thickness is based on 4.445cm