Wiring of fan regulator on 4 + 1 node switch

I purchased (directly from Tinxy) the 4 + 1 switch which comes with a physical replacement fan regulator. See image of supplied unit:

The fan regulator has a 3-pin wire cable. However, no such socket is seen on the switch to connect this cable.

Where and how is this fan regulator supposed to get connected to the smart switch?

I also bought the same model from Amazon. In this case, the switch unit is embedded with a 3-pin socket to receive a 3-pin connector. See picture of yellow colred unit.

However, Amazon did not supply the accompanying fan-regulator so have asked for a replacement.

The question is, which one is the latest 4+1 with fan regulator, and were does the 3 pin wire lead for fan regulator fit on the Tinxy supplied unit (red coloured unit)?

sir give your number i will call you

Thanks for telcon and arranging for the replacement.