Coinkite
Coinkite Coldcard Q
Coinkite Coldcard Q
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Dual Secure Element for Key Storage
We find it quite scary that some hardware wallets trust the main microprocessor with their most valuable secrets. Instead, COLDCARD uses two Secure Elements, from different vendors, to protect your Bitcoin.
Specifically, the COLDCARD uses Microchip's ATECC608 and Maxim's DS28C36B, to store the critical master secret: the 24-word seed phrase for your BIP39 wallet.
For your funds to be compromised, a backdoor would need to exist for 3 different chips: both the Secure Elements, and the main microprocessor.
Questions about buying this wallet
Is this device genuine and factory sealed?
Is this device genuine and factory sealed?
Yes. The Crypto Merchant is an authorized reseller and sources every wallet from the manufacturer or its authorized distributor. Devices arrive new and sealed. We never open, pre-configure or ship a wallet with a pre-written recovery phrase. If a seal looks tampered with on arrival, do not use the device and contact us.
How long does shipping take?
How long does shipping take?
US orders ship free with tracking and usually arrive within 2 to 4 business days from our warehouse in Florida. International shipping options and rates are shown at checkout.
What is the return policy?
What is the return policy?
Unopened items can be returned within 30 days of purchase for a refund. Opened hardware wallets cannot be resold for security reasons, so they are not returnable. See our refund policy for the full terms, including restocking fees.
What if the device is faulty?
What if the device is faulty?
Hardware wallets are covered by the manufacturer's warranty. If a device is defective, email support@thecryptomerchant.com and we will point you to the right warranty process for your brand.
Can you help me set it up?
Can you help me set it up?
Yes. Our US-based team answers setup and transfer questions by email at support@thecryptomerchant.com and by phone at 386-222-2954. Our guides also walk through setup for Ledger, Trezor, BitBox and other brands.