Product advantages: compatible with Arduino built-in 3.3V stabilizer serial bus SPI3 The module has all the necessary elements for communication with the SD card through, for example, Arduino. The SD card slot has a built-in ejector, so to remove the card, press it again and it will pop out of the slot. Specification: power supply: 5V or 3.3V Compatibility: Arduino interface: SPI resistors: adjusting the voltage levels input: SD card dimensions: 52x30mm https://elecena.pl/product/22606106/sd-memory-card-reader-module-arm-avr-pic-arduino 2023-02-22 https://elecena.pl/product/22606106/sd-memory-card-reader-module-arm-avr-pic-arduino 2023-04-07 https://elecena.pl/product/22606106/sd-memory-card-reader-module-arm-avr-pic-arduino 2025-10-25 https://elecena.pl/product/22606106/sd-memory-card-reader-module-arm-avr-pic-arduino 2025-10-29