Answer: WireFlow's modules use standardized connectors. Different modules use different connectors.
The WF 3132 module has a 37-pin male D-sub connector.
It is not delivered with any plug. Any standard D-sub 37 female plug can be used.
Figure 1 - 37 pin D-sub female plug
The WF 3144 and WF 3154 modules have a 10-pos male connector (MSTB 2,5/10-GF-5,08 BK).
It is delivered with a matching 10-pos female plug with screw terminals (FRONT-MSTB 2,5/10-STF-5,08BKNZ - 1763504).
Figure 2 - 10-pos female plug
The WF 3168 and WF 3169 have a 2x18-pos male connector (S2L-SMT 3.50/36/90LF 3.2SN BK BX).
It is delivered with a matching 2x18-pos female plug with spring terminals (B2L 3.50/36/180F SN BK BX).
Read more on connector genders on Wikipedia.
Wikipedia: Gender of connectors and fasteners