YELUFT 10pcs Micro SD TF Adapter Reader Card Module Supports Micro SD Card and Micro SDHC Card, 6Pin SPI Interface for Arduino

["6Pin SPI Interface: SD card reader/writer module has 6 pins, of which GND is the ground; VCC is the power supply; MISO, MOSI, and SCK are the SPI bus; CS is the chip select signal pin. Standard SPI communication interface, can be easily connected to any device with SPI interface","Level Conversion Circuit: Onboard level conversion circuit, the signal to the SD card is converted to 3.3V, and the MISO signal from the SD card to the control interface is converted to 3.3V. Generally, the AVR microcontroller system can read this signal","3.3V Voltage Regulator Circuit: The 3.3V output of LDO voltage regulator is used to power the level conversion chip and SD card","Easy to Use: 4 x M2 screw positioning holes with a hole diameter of 2.2mm, making the module easy to install and position, and realizing the combination between modules; Self-elastic card holder, which is convenient for card insertion and removal","Applicable Card Types: Micro SD card, Micro SDHC card (high-speed card)"]