Flush-mounted connection unit for individual modules in keystone design, plug-in direction of the module inclined 45° downwards, strain relief on the module, with viewing window for enclosed label insert, label sheet 209 x 294 mm see accessories, integrated dust protection flaps (also available in color), cover parts pure white RAL 9010, matt structured surface, compatible with design center pieces of switch ranges, variants: 1 port, 2 port, 3 port