Ender 3 Pro Silent Board ?

A little while ago (about 2 -3 months) I bought 2 number Ender 3 Pros and am having great success with them. I recently watched a You tube video that said the ender 3 Pro had a Mini USB Connector and the new board on the Ender 3 V2 had a Micro USB Connector. Interestingly though both of my Ender 3 Pros have a Micro USB Connector and that made me think that perhaps my Printers have the later 32 bit board on them. The Ender 3xs Being sold by Bangood has the silent board So I wondered as mine are quite new if mine do also baased on the Micro SD Card Plug hole evidence

What do others think