> For the complete documentation index, see [llms.txt](https://docs.citadelwallet.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.citadelwallet.io/wallet-spec/hardware-spec.md).

# Hardware Spec

- [Microprocessor](https://docs.citadelwallet.io/wallet-spec/hardware-spec/microprocessor.md)
- [Secure Element](https://docs.citadelwallet.io/wallet-spec/hardware-spec/secure-element.md)
- [Storage](https://docs.citadelwallet.io/wallet-spec/hardware-spec/storage.md)
- [Battery](https://docs.citadelwallet.io/wallet-spec/hardware-spec/battery.md)