Opinion about Coldcard Q

Opinion about Coldcard Q (hardware)

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Coldcard Q is the latest device from Coinkite, which is known for its focus on security and air-gapped operation. Its Bitcoin only mantra is also an appreciated value for bitcoiners. It has several improvements compared with the previous mk4 model.

Pros:

• Privacy and supply chain security: PO box delivery support, payment with bitcoin in official store, tamper evident bag, and more
• Lots of security features: different ways to protect the wallet with PIN, passphrase, etc
• Lots of advanced features for the more expert users: testnet, secure elements, multisig, miniscript, user added entropy, etc
• You can connect it with lots of software wallets, working as coordinators
• The QR code scanner allows you sign transactions using QRs.
• The bigger screen and qwerty keyboard are important usability improvements
• The device is powered by 3x AAA batteries, which is very practical

Cons:

• The source code is available but the anti selling clause in its license makes it not fully open source.
• A bit complex for beginners

• thebitcoinhole.comthebitcoinhole.com

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