Server Rack Unit

A rack unit abbreviated u or ru is a unit of measure defined as 1 3 4 inches 44 45 mm.

Server rack unit.

A rack unit abbreviated as u less commonly seen as ru is a unit of measurement applied to equipment racks and the servers disk drives and other devices that they contain. The standard rack at 19 inches is 42u. Rack mount fan 4 fans server cooling system 1u 19 rackmount cabinet panel w adjustable airflow control heat monitor digital display temperature sensor alarm air flow exhaust tupavco tp1701 4 1 out of 5 stars 28. Manufacturers of rackmount equipment make their product lines based upon how many rus that the equipment occupies in the server rack.

1u occupies 1 75 44 45 mm of vertical space. The fully enclosed secure server cabinets range in size all the way up to 42u and they exceed oem air flow requirements and regulations. The server itself might have locking pins on the. The standard rack at 19 inches is 42u.

With the exception of some legacy equipment monitors and keyboards most server and network equipment sold today is intended to be rack mounted. Racksolutions server racks are compatible with all the leading oems such as dell hp and ibm servers and equipment and they meet the eia standards for 19 server racks. It is most frequently used as a measurement of the overall height of 19 inch and 23 inch rack frames as well as the height of equipment that mounts in these frames whereby the height of the frame or equipment is expressed as multiples of rack units. The sliding rails can lock in various extended positions to prevent the equipment from moving when extended out from the.

One u is 1 75 inches 44 45mm. For example a typical full size rack cage is 42u high while equipment is typically 1u 2u 3u or 4u high. One u is 1 75 inches 44 45mm. A rack unit abbreviated as u less commonly seen as ru is a unit of measurement applied to equipment racks and the servers disk drives and other devices that they contain.

This three hole group is defined as a rack unit ru or sometimes just call a u. 1u one rack unit is approximately 1 75 in height 2u is 3 5 in height and so on.