MicroSD Socket : ID 1660 : $1.95 : Adafruit Industries, Unique & fun DIY electronics and kits
USB 3.0 DUAL SLOT TYPE A & TYPE C MICRO SD AND SD CARD READER
hardware - Micro SD card slot on Pi 2 - Raspberry Pi Stack Exchange
Amazon.com: SD Card Reader for iPhone iPad 4 in 1 SD Micro SD Card Reader Memory Card Reader Adapter with Dual Card Slot and USB for SLR Camera Trail Game Camera SD