An optoelectronic apparatus comprising a casing (110) inside which an electronic unit and an optical unit electrically interconnected are disposed; the optical unit comprises an element (100) on which at least one component is housed, which can be of an optical type, of optical connection, of an electro-optical type (270, 275, 300), said element (100) comprising a plurality of separate areas (190, 195), so that each area houses components substantially of a single type.