Integral Memory's new 512GB microSD card is the biggest microSD card yet - The Verge
BaseQi NinjaDrive Aluminum 512GB Memory Card SD Card for MacBook Air 13" and MacBook Pro Retina 13" / 15"|Memory Cards| - AliExpress
Amazon.com: Samsung Micro 512GB Evo Plus Memory Card Class 10 Works with Android Phone - Galaxy A20s, A20, A10, A70 (MB-MC512) Bundle with (1) Everything But Stromboli MicroSD & SD Card Reader: