Delivery from £5.95 ex VAT FREE standard delivery £200+*
Trade Pricing for installers & resellers
Phone Support from real people

What does 1U mean?

1U is one standard rack unit, equal to 44.45mm of vertical rack height.

Rack-mounted equipment is commonly described as 1U, 2U, 3U and so on. A 2U device occupies twice the nominal rack height of a 1U device.

The actual metal chassis may be fractionally smaller than the full theoretical height to provide manufacturing and installation clearance.

Answered by
Michael
Technical Support · Data Cabinets Direct
Rack space & future capacity 25 relevant products

More from Rack space & future capacity

Explore related questions about rack space & future capacity.

How do I work out how many U of cabinet space I need? Should I leave spare U for future expansion, and how much? Does a shelf itself use rack space? How should I allow for non-rack equipment that will sit on a shelf?
Browse all Network Cabinets help →

Products this answer covers

This answer applies to 25 products in the P Series Data Cabinets range.

Asked about this product

6U 450mm Deep 19" P Series Data Cabinet - Black - Ready Assembled Original product context 6U 450mm Deep 19" P Series Data Cabinet - Black - Ready Assembled SKU: DLX-C-6U-CAB-BK-450MM-P View product →

This answer also applies to

A selection of other products covered by the same answer.
12U 300mm Deep 19" P Series Data Cabinet - Black - Ready Assembled 12U 300mm Deep 19" P Series Data Cabinet - Black - Ready Assembled SKU: DLX-C-12U-CAB-BK-300MM-P View product → 15U 450mm Deep 19" P Series Data Cabinet - Black - Flat Packed 15U 450mm Deep 19" P Series Data Cabinet - Black - Flat Packed SKU: DLX-C-15U-CAB-BK-450MM-PF View product → 4U 300mm Deep 10" P Series Miniline Data Cabinet - Black - Ready Assembled 4U 300mm Deep 10" P Series Miniline Data Cabinet - Black - Ready Assembled SKU: DLX-C-MINILINE-4U-CAB-BK-300MM-P View product →