Abstract: A device for fastening and/or guiding strand-shaped elements, in particular cables or cable bundles wind turbines includes retaining bodies (5) combinable with a supporting structure (3) in the form of a star body to form a modular fastening system, having a strand passage (31) for a strand element. Each retaining body has two partial bodies (25 and 27), each of which has a part (29) of the strand feedthrough (31). Between surfaces (13) of consecutive spokes (9) of the star body of the supporting structure (3) extending parallel to each other, installation spaces (21) for retaining bodies (5) are formed. The installation spaces are open towards the outside of said star body and have sides that are parallel to each other, A retaining device (59, 61, 63) is provided between each partial body (25, 27) and the spoke (9) adjacent to it.