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What does the U rating mean on a rack drawer?

It tells you how much vertical rack space the drawer occupies. A 1U drawer takes one rack unit, a 2U takes two and so forth.

It is a mounting-space designation, not a promise that every millimetre of that height is available inside the drawer.

Answered by
Richard
Product & Technical Support · Data Cabinets Direct
Rack drawer basics 14 relevant products

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This answer applies to 14 products in the Rack Storage Drawers range.

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19" 3U Lockable Rack Drawer – 370 mm Deep Original product context 19" 3U Lockable Rack Drawer – 370 mm Deep SKU: DLX-C-DRAWER-19-3U View product →

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A selection of other products covered by the same answer.
10" 1U 200mm Rack Storage Drawer 10" 1U 200mm Rack Storage Drawer SKU: DLX-C-MINILINE-DRAWER-1U-200MM View product → 10" 1U 260mm Rack Storage Drawer 10" 1U 260mm Rack Storage Drawer SKU: DLX-C-MINILINE-DRAWER-1U-260MM View product → 10" 2U 200mm Rack Storage Drawer 10" 2U 200mm Rack Storage Drawer SKU: DLX-C-MINILINE-DRAWER-2U-200MM View product → 10" 2U 260mm Rack Storage Drawer 10" 2U 260mm Rack Storage Drawer SKU: DLX-C-MINILINE-DRAWER-2U-260MM View product → 10" 3U 200mm Rack Storage Drawer 10" 3U 200mm Rack Storage Drawer SKU: DLX-C-MINILINE-DRAWER-3U-200MM View product → 10" 3U 260mm Rack Storage Drawer 10" 3U 260mm Rack Storage Drawer SKU: DLX-C-MINILINE-DRAWER-3U-260MM View product →