imKey S1 Fireproof Steel Crypto Seed Phrase Storage Metal Backup Plate for 12/18/24 Word Recovery Phrase Cold Bitcoin Key Mnemonic Phrase

Fireproof & Waterproof Stainless Steel Seed Storage: Made from 304 stainless steel with a 1398°C melting point, imKey S1 protects your seed phrase from fire, water, corrosion, humidity, and physical impact, exceeding typical house fire temperatures (~815°C).

Mistake-Proof Seed Phrase Backup Design: imKey S1 features a fixed-compartment, mistake-proof system. Physical dividers and dedicated slots separate each mnemonic word by groups of four letters, keeping characters securely in place. The tiles fit perfectly into their slots to prevent loss or misplacement, while remaining easy to read — reducing the risk of human error during backup and recovery.

Dual-Sided Backup for Multiple Wallets: The S1 offers dual-sided (A/B) storage. allowing you to securely stores two separate 12-word seed phrases, ideal for users managing multiple crypto wallets. All characters are laser-engraved for permanent legibility, and the enclosure is secured with a full set of screws and optional locking mechanism for added physical security.

BIP-39 Compatible & Easy Recovery: According to the BIP39 standard, each mnemonic word can be uniquely identified by its first 4 letters, which is sufficient for full recovery. For example, if your seed phrase includes “desert shift awesome”, you only need to record “dese shif awes” in the metal backup to accurately restore the complete phrase.

Offline Cold Storage for All Major Wallets: A 100% offline, non-electronic solution that eliminates hacking and network risks. Compatible with imToken, imKey Pro, Ledger, Trezor, MetaMask, Coinbase Wallet, and all BIP-39 wallets. Supports 12 / 18 / 24-word seed phrases.

Complete Kit, easy to Use: 1 x HeirBOX S1, 3 x metal letters plates, 1 x screwdriver, 6 x screws, 1 x instruction

Customer service: If you need assistance or encounter any issues, please contact us at support@imkey.im.