The proper weight for a cat can vary widely, depending on the cat's build. My four normal-weight cats range from 6.5 pounds up to 14 pounds. Some large-breed cats such as Maine Coons can weigh 24 pounds and be normal, though most domestic cats would be obese at that weight. http://www.cvm.tamu.edu/clinicalnutritio...
A Rack Unit or Rack U is an EIA standard allowance unit for measuring rack mount equipment. One Rack Unit is equal to 1.75 in height. To calculate internal useable space of a rack enclosure, simply multiply the total amount of Rack Units by 1.75. For example, a44U rack enclosure would have 77 of internal usable space (44 x 1.75). Click here to choose racks by height.
Rack with sample component sizes including an A/V half-rack unit. A typical section of rack rail, showing rack unit distribution. A rack unit (abbreviated U or RU) is a unit of measure defined as 1.75 inches (44.45 mm). It is most frequently used as a measurement of the overall height of 19-inch and 23-inch rack frames, as well as the height of equipment that mounts in these frames, whereby the height of the frame or equipment is expressed as multiples of rack units.