Coinkite’s Coldcard is a simple design and easy to use Bitcoin security hardware in which you can store your Bitcoins. The company Coinkite is a leading bitcoin security expert and hardware manufacturer. ColdCards are manufactured in Canada and delivered with a tamper evident numbered bag which makes sure you are the first user and your information is secure with the device.

ColdCard stands out with its offline signing with the MicroSD feature. You don’t need any special software to use Coldcard, because it accepts standard PSBT (Partially Signed Bitcoin Transaction) transactions stored on a MicroSD card. ColdCard code is open source. All you need to do is connect ColdCard to your computer.

You can connect ColdCard to your computer with a micro USB data cable or using a MicroSD card. But for extended security purposes, avoid connecting ColdCard with a cable, and use the MicroSD method instead.

You can insert a MicroSD in its place on the back of the device, transfer wallet info to the memory card then take the memory card off and insert it to any computer you want to use. By doing so, you don’t transfer your wallet, you simply make a copy of your wallet’s public info only, it is called skeleton wallet file, generated by the Coldcard hardware, After you save the skeleton wallet file on your computer, you can see your balance, send or receive funds. When you are sending funds, you can initiate a transfer order on the computer and save a file to MicroSD and then finalize the process by inserting MicroSD to the ColdCArd, completing confirmations, finally, you need to take the MicroSD card off and insert it back to the computer to broadcast the transaction. The option of using a MicroSD instead of connecting hardware wallet device to a computer is a great feature that makes your funds even safer against all kinds of hackings.

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CoinKite Coldcard Reviews

Which Cryptos Does The CoinKite Coldcard Support?

The CoinKite Coldcard supports only Bitcoin.

Supported Software and Platforms

Which crypto software wallets and platforms does the CoinKite Coldcard support? The CoinKite Coldcard supports 10 crypto software wallets including Electrum, Bitcoin Core Wallet and BTCPAY.

CoinKite Coldcard Specification

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