# SD Card example Here are the [docs for the SDCard pins](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/hw-reference/esp32/get-started-wrover-kit.html#get-started-esp-wrover-kit-v4-1-microsd-card-slot). | . | ESP32 Pin | MicroSD Signal | |---|---------------|----------------| | 1 | MTDI / GPIO12 | DATA2 | | 2 | MTCK / GPIO13 | CD / DATA | | 3 | MTDO / GPIO15 | CMD | | 4 | MTMS / GPIO14 | CLK | | 5 | GPIO2 | DATA0 | | 6 | GPIO4 | DATA1 | | 7 | GPIO21 | CD |