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Glossary of Technical Terms

1U Rackmount Case



The term 1U represents 1 Unit of storage space, within a rack or cabinet. Specifically, one rack unit (represented as RU or U) is equal to 1.75’’ from top to bottom. As such, a 1U rackmount case is a metal chassis containing the various components that comprise a server computer, that can be mounted within a server cabinet/rack while inhabiting only 1U of rack space.