I did print both of the original PeaceSMC's holders, but both of them were quite narrow.
My cable is 31-32mm wide, so I did adjust the holder to fit it.
On the photo it may look buldging, but it's just the result of the previous attempts, cable now fits completely flat. I just don't like buldging cables.
Cable_holder_v3-32mm.stl | 18.1KB |