I've made a few videos on this topic in the past, but are fake flash storage scams still around in 2023.  Yes.  Yes they are, and it's worse than ever.

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Links to some resources on fake flash storage:
Burnintest: https://www.passmark.com/support/bit_fake_USB_detection.php
FakeFlashTest: https://rmprepusb.com/tutorials/007-all-about-fake-sd-cards-and-usb-flash-drives/
RMPrepUSB:https://rmprepusb.com/
H2TestW (site is in German, but Google Translate works on it): https://www.heise.de/download/product/h2testw-50539
F3: https://fight-flash-fraud.readthedocs.io/en/latest/

Timestamps:
00:00 Intro
00:27 Device for testing
01:28 (Fake) reviews
02:53 Unboxing
03:52 Testing
06:28 Results & analysis
07:09 How does the scam work?
09:08 Refund
09:43 Amazon's Response
11:59 Tips
13:26 TEST your flash storage