This module is called mini, because it's smaller that regular arduino SD Card module.that's partially due to lack onboard voltage regulator. It supports MicroSD card though.This module is practically just a breakout of a MicroSD socket. Board size: 18.5 (mm) x17.5 (mm) https://elecena.pl/product/17485462/mini-sd-tf-memory-card-module 2021-03-29 https://elecena.pl/product/17485462/mini-sd-tf-memory-card-module 2023-08-14