Pololu Wixel with SD Card as USB Mass Storage Device
spi - Make an SD card installed on PCB readable through USB - Electrical Engineering Stack Exchange
PC-3000 Flash. Monolith pinout determination guide. Variant 1 | PC-3000 Support Blog
How to build a device to read SPI/SDIO input and convert to USB to read/write data onto a USB storage device from a 9-pin SD card interface? : r/embedded
DIY a LEGO micro SD card reader for Samsung Galaxy Tab - Protag Multimedia
MicroSD Pinout: A Step-by-step Guide
2019 Student Build - Part C: Add Wires to the SD adapter - YouTube