KeystoneActive Open Source Air-Gapped USB
Keystone 3 Pro
Brand
Keystone
Connectivity
QR Code (air-gapped), USB-C (charging only)
Display
LCD 4" colour touchscreen
Supported Coins
5,500+ coins
Released
2023
Price
$149
About Keystone 3 Pro
The Keystone 3 Pro is an air-gapped hardware wallet that communicates exclusively through QR codes. It features a large 4-inch touchscreen, triple secure element chips (EAL5+), a PCI anti-tamper self-destruct mechanism, and fingerprint authentication. The device supports multi-chain and multi-signature setups, is compatible with MetaMask, and runs open-source firmware. It represents one of the most feature-rich air-gapped wallets available.