A modular fluid connection assembly includes a female connector (1) for fluid connection, provided to receive a male connector (2) having an external annular retaining rim (24), the female connector including a body (10) with an axial bore X, and a slide forming a transverse housing (4), the housing (4) including two parallel lateral grooves (41, 42) and the housing opening at at least one of its ends (40) along the direction of the slide Z, the assembly including a non-unlocking locking element (3), in the form of a deformable locking ring (3), the assembly including an unlocking locking element (5), in the form of a locking slider (5), in which the female connector is configured to receive equally either a non-unlocking element, or an unlocking element.
