Fireproof (2200° F), Waterproof, EMP Proof
METAL BITCOIN SEED STORAGE
Modular Design
Build your stack to your specs. Store one 24 word mnemonic seed per plate. Add up to 10 plates per stack.
METAL SEED STORAGE
Crypto Key Stack
Don't wait until it's too late. Start protecting your recovery seed phrases today.
Crypto Key Stack
KeepKey & Key Stack Bundles
Software based hardware wallets help protect your keys while transacting. The Key Stack helps protect your hardware wallet seed phrase from physical stress. Use them together to maintain best security practices.
SECURITY FEATURES
Fireproof
Black anodized stainless steel plates offer fire protection up to 2200°F. Twice the average temperature of a house fire.
Private Engraving
Electric engraver included with each stack purchase. Skip the third-party with a quick, easy, and private way to permanently backup your cryptocurrency keys.
Waterproof & Rust Resistant
Protect your private keys in the event of flooding and water damage.
Stack Plate Add On's
Each Crypto Key Stack can hold up to TEN stack plates total. Add on's are $15 per plate or $35 for three pack.
Medium Article
Metal Bitcoin Seed Storage Stress Test
Jameson Lopp blasted the most popular metal cold storage devices with a 2500°F butane torch, dropped them in a hydrochloric acid bath and crushed them with a 20 ton hydraulic press.
Crypto Key Stack PASSED EVERY TEST with straight A's.
Read more about his experiment on Medium.
