U(unit) generally refers to the height size of the 19-inch standard chassis, the standard value is 44.45, and generally 1U is the minimum height of the 19-inch chassis. The height of 4U is about 44.45*4, why is it about, because the stacking gap between the upper shelf installation should be kept.
A journey of a thousand miles begins with one step. Come on!!!👍👍👍
What does 4U mean?
666
The sense of science and technology is quite strong.
What a powerful feeling