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f3 github.com ↗

Open-source tool that tests flash drives for their real capacity and can fix counterfeit size reporting.

ToolDev toolsflash-storagefake-drive-detectionlinux

Screenshot of github.com, f3's site

Captured 6 Nov 2026

Recommended in 1 thread

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Proves fake multi-terabyte USB sticks are counterfeit so buyers can claim refunds.

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Link from a commenter, not checked or endorsed by us: ↗ https://github.com/AltraMayor/f3