technics42

Actually you don't need any adapter. You can directly connect sd-cards to ESPs. Adapter just is needed if you want to have possibility to connect without soldering. I connected SD...

You have to solder/wire your SD card to your ESP, just like the adapter. The adapter just passes through the signals, as SD-cards do have SPI itself - e.g. take...

You don't have to solder your card directly, just solder your micro-SD-adapter and you can exchange your micro-SD like usual. I just wanted to clarify, that those adapters you were...