Free Tools to Check SD Card Speed and Capacity - Make Tech Easier
Cheap SD Cards from eBay are Fake - Raspberry Pi Spy
GameChap on Twitter: "Fake VS real SanDisk 64GB microSD card. Fake (from eBay) has incorrect/misaligned print, hard to see. Back is also different #NintendoSwitch https://t.co/InydBQ6ek6" / Twitter
ELECTRONICS: Beware of Fake SanDisk Ultra MicroSD Card From Online Sellers | Lady Rattus Blog
How to Identify and Test Fake Memory Cards
FAKE VS REAL (SanDisk Ultra 256 GB microSDXC Memory Card) comparison - YouTube