Optoelectronic module (T), intended to ensure a conversion of an electrical signal from a main electronic board into an optical signal or vice-versa, the optoelectronic module (T) comprising: - a housing inside which are fixedly housed: • the main electronic board ; • at least one optical subassembly , OSA, comprising: • at least one optoelectronic component, adapted to transmit or receive a light signal by its top surface along an optical axis (X), • at least one holding sleeve adapted to hold, with centring within it, a complementary optical ferule incorporated in an optical contact element extending about its central axis (X1), with the central axis (X1) coinciding with the optical axis (X); and • a first mechanical abutment fixing the longitudinal position of the complementary optical ferule once connected inside the holding sleeve ; characterized in that the optoelectronic module (T) also comprises: - at least one blade comprising a clear opening , the blade being fixed flexibly to the main electronic board and/or the housing between a bent unlocking position in which the clear opening allows passage both of the complementary optical ferule and at least a part of the body of the optical contact element , in which the complementary optical ferule is housed, such that the complementary optical ferule can be pushed and guided in the holding sleeve and a non-bent locking position in which the blade forms a second mechanical abutment and thus locks the body of the optical contact element inside the housing with the complementary optical ferule inside the holding sleeve . - a housing inside which are fixedly housed: • the main electronic board ; • at least one optical subassembly , OSA, comprising: • at least one optoelectronic component, adapted to transmit or receive a light signal by its top surface along an optical axis (X), • at least one holding sleeve adapted to hold, with centring within it, a complementary optical ferule incorporated in an optical contact element extending about its central axis (X1), with the central axis (X1) coinciding with the optical axis (X); and • a first mechanical abutment fixing the longitudinal position of the complementary optical ferule once connected inside the holding sleeve ; characterized in that the optoelectronic module (T) also comprises: • the main electronic board ; • at least one optical subassembly , OSA, comprising: • at least one optoelectronic component, adapted to transmit or receive a light signal by its top surface along an optical axis (X), • at least one holding sleeve adapted to hold, with centring within it, a complementary optical ferule incorporated in an optical contact element extending about its central axis (X1), with the central axis (X1) coinciding with the optical axis (X); and • a first mechanical abutment fixing the longitudinal position of the complementary optical ferule once connected inside the holding sleeve ; characterized in that the optoelectronic module (T) also comprises: - at least one blade comprising a clear opening , the blade being fixed flexibly to the main electronic board and/or the housing between a bent unlocking position in which the clear opening allows passage both of the complementary optical ferule and at least a part of the body of the optical contact element , in which the complementary optical ferule is housed, such that the complementary optical ferule can be pushed and guided in the holding sleeve and a non-bent locking position in which the blade forms a second mechanical abutment and thus locks the body of the optical contact element inside the housing with the complementary optical ferule inside the holding sleeve . <EOS>