I believe it is RND connect 3.81mm spacing (RND 205-0013x – RND 205-0015x).
I can now be more precise:
It's KaiFeng KF2EDG-Y-3.81-xxP for the plugs (xx being the number of pins, so 03P for 3 pins, 08P for 8, etc.) and KF2EDGR-Y-3.81-xxP for the sockets with right-angle pin header (KF2EDGV for the straight pin header variant).
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