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2U and 4U racks


samtindal
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A 'u' is generally 19 inches wide (unless you get the 1/2 u things... which are a bit of a confusion as the u should refer to height... Anyway... 1u is 1.75inches tall, so 2u is (2x1.75) 3.5 inches tall... and equally, 4u is 7 inches tall.

Edited by EBS_freak
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The "U" is the unit of vertical equipment measurement. Almost all rack mount equipment is made in multiples of "U", this is usually with any feet removed.

1U = 1.75-inches or 44.45mm.

For example a 4U rack should have an equipment opening of 7-inches.

Does this help?

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