Question: what is 1u 2u server?
Answer: You may find "1U" or" 2U" when you look at the product information of the rackmount server. This "U" represents the height (size) of the rack mount server. Each rack mount server is made to fit in a standard 19-inch rack. ... 1U is 1.75 inches. So, 2U is 3.5 inches high and 4U is 7 inches high.