Bip39 Standard. Have the demanded range of COLDCARDs, select Import Existing in the course of setup and load exactly the same backup file onto Each and every of them. Give Each and every COLDCARD its personal passphrase after which lock down the seed. Your seed words will not be recognized https://socialbuzzfeed.com/story4138900/bip39-generator-https-linktr-ee-bip39-an-unbiased-view-of-bip-39