Hot swap SPI devices. PLZ check the schematics.
SD Card Pinout Basics| Delkin Devices- Rugged Controlled Storage
How to design the microSD circuitry
Sd card
AVR SD Card Initialization Tutorial Part 1
Wiring & Data Reading with SD Card Module | 14core.com
microSD Card Pinout, Features & Datasheet
SD/TF Card Reader Module - Wiki
SD card - Wikipedia
SD Card Module Slot Socket Reader | Electrical Engineering and Computer Science | Oregon State University
How a USB Memory Card Reader Works? Pinout - ETechnoG
PJRC Store
ESP32 Vs Micro SD issue - ESP32 Forum
SD and Micro SD card pins with description and functions
SD card adapter hack: A sheet music light!
GitHub - pixelmatix/sd-card-library: An Implementation of the Arduino/Sparkfun SD Card Library for the Spark Core
Connect a microSD card to the ESP8266 or ESP32 using a microSD to SD adapter — Alex Lubbock
How to Use MMC/SDC
Arduino micro SD Card Data Logger
MicroSD Pinout: A Step-by-step Guide
microSD Card Pinout, Features & Datasheet
In-Depth Tutorial to Interface Micro SD Card Module with Arduino
Circuit diagram of the SD Card Module. | Download Scientific Diagram
18 Series Microcontroller - Chapter 14 - SD Card Part 1
