Mini Terminal Hat Expansion Board For Raspberry Pi 4B/ 3B+/ 3B/ 2B Zero/Zero W.
It is very suitable for Raspberry Pi. Does not occupy other space, very convenient when doing DIY circuits. 4 x M2.5 Copper Pillar. 2 x M2.5 Double Pass Copper Pillar. No need to worry about them. We'd get back to you A.S.A.P.