Bip39 Tool. Get the needed quantity of COLDCARDs, pick Import Present throughout set up and load the identical backup file on to Every of these. Give Every single COLDCARD its personal passphrase and after that lock down the seed. Your seed words won't be known to any with the devices https://ledbookmark.com/story4438292/bip39-words-https-linktr-ee-bip39-the-fact-about-bip39-wallets-that-no-one-is-suggesting