The heights of the sides are 1U, 2U, 3U, 6U; (U = 44.45mm) respectively.
The depth of the sides is 211mm (for a cassette with a depth of 160mm) or 271mm (for a cassette with a depth of 220mm).
.The sides of the 3U and 6U / 220 cassettes also allow the installation of beams on dimension 160.
Sides
The sides of the cassettes are made of aluminium sheet, roughened on both sides - anodised. It is possible to order chromium-plated or powder-coated sides.