Keystone 3 Pro
An air-gapped hardware wallet that uses three separate secure element chips and signs entirely over QR codes, with no USB or Bluetooth data path required. Firmware is published as open source.
Services
- Air-gapped QR signing
- Three secure element chips
- Fingerprint unlock
- Multisig
- PSBT support
Highlights
Source: Official website — product page. Last checked 2026-09-18. Spot an error? Tell us.