# What size is a 2u rack?

What size is a 2u rack? For electronic equipment racks (e.g., 19 or 23 inches wide), the term 1U is used to define one rack unit of height. To be precise, 1U equals 1.75-inches (44.45mm) of rack height. Therefore, a 2U rack mount height would be 2 x 1.75”, which equals 3.5-inches high. A 3U height would be 3 x 1.75” = 5.25-inches.

What is 4U size? Rack Height

A 4U rack or cabinet can house equipment whose total height when placed into the rack is no more 7inches or 17.78cm (1.78m) with 1U=1.75inches or 44.45mm.

What is the difference between 2u and 4U? The primary difference between 2u vs 4u servers is one of density or expandability. 2u models are smaller and designed with superior performance density in mind, which is why they are typically installed in datacenters and for enterprise applications.

How big is 6U rack?

1U, 2U, 3U, 4U, 5U, 6U, and 7U
Unit Dimension (W x H x D)
4U 19″ x 7″ x 17.8″ 19″ x 7″ x 26.4″
5U 19″ x 8.34″ x 19.67″ 19.1″ x 8.75″ x 26.4″
6U 19″ x 10.5″ x 19.5″
7U 17″ x 12.2″ x 19.8″

## What size is a 2u rack? – Additional Questions

### How wide is a server rack?

How wide are server racks? Server racks are usually 19 inches wide. This is because the vast majority of rack-mounted equipment will have a mounting width of 19 inches, so keeping the width of server racks the same makes life easier for everyone.

### What is the height of a 2U system?

1U vs. 2U. What Does the ‘U’ Refer to When Buying a Server?
Rack Units Height (in) Height (cm)
1U 1.75″ 4.4 cm
2U 3.5″ 8.9 cm
3U 5.25″ 13.3 cm
4U 7″ 17.78 cm