4 for $23.41 😎
https://www.amazon.com/Raspberry-Pi-Pico-RP2040-microcontroller/dp/B09437S9X4/ref=mp_s_a_1_3?crid=1Y89B4TR7ELGW&keywords=pi+pico+4&qid=1656952153&sprefix=pi+pico+4%2Caps%2C197&sr=8-3