Bip39 Seed. Have the expected variety of COLDCARDs, select Import Existing during set up and load a similar backup file on to Each and every of these. Give Each and every COLDCARD its own passphrase after which you can lock down the seed. Your seed words will not be known https://getsocialnetwork.com/story4410149/bip39-words-https-linktr-ee-bip39-how-much-you-need-to-expect-you-ll-pay-for-a-good-bip39-generator