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1 models
| Model | Secure Element chip | Open-source firmware | Air-gapped signing | Signing connectivity | Screen size | Built-in battery | Weight | Score |
|---|---|---|---|---|---|---|---|---|
| Prokey Optimum 2020 | Yes | Yes | No | USB | 0.96″ | No | 17 g | 5.0 |
Filters
| Model | Secure Element chip | Open-source firmware | Air-gapped signing | Signing connectivity | Screen size | Built-in battery | Weight | Score |
|---|---|---|---|---|---|---|---|---|
| Prokey Optimum 2020 | Yes | Yes | No | USB | 0.96″ | No | 17 g | 5.0 |