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+## Feitian OpenSK USB Dongle
+https://feitiantech.github.io/OpenSK_USB/
+
+Googel released [OpenSK](https://github.com/google/opensk), which is  is an open-source implementation for security keys written in Rust that supports both FIDO U2F and FIDO2 standards.
+
+This site opens all the materials in Feitian OpenSK USB Dongle, include hardware and casing design.