Tag: 4U

1U, 2U, 3U Rack Mount Heights – Just What Are “U” Talking About?

1U, 2U, 3U Rack Mount Heights – Just What Are “U” Talking About?

Blank Rack Mount Panels
Blank Rack Mount Panels

Just what does the “U” mean when talking about rack equipment?

As you can see from my Ham Radio console, it is setup using rack mount cabinets. I am using the older rack cabinets that use round holes instead of the newer ‘rectangle” holes. But, whichever style cabinet you are using, the equipment that mounts in there will be pretty much the same as far as the mounting sizes. Most all standard rack mount gear and even blank rack panels are 19 inches wide. There are some other “standard” widths out there, but most you will find, today, will mostly be the garden variety 19″ racks. This is especially true in today’s server racks and Ethernet hubs and switch racks.

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