Coinkite SEEDPLATE 24
Center-punch stainless steel plate for a 24-word seed, from the Coldcard makers.
Overview
The Coinkite SEEDPLATE 24 is a no-frills stainless steel backup from the team behind the Coldcard hardware wallet. It's a flat plate pre-marked with the BIP39 wordlist, sized specifically for a full 24-word seed, which you encode by centre-punching dots next to the correct letters. It carries the same design philosophy as Coinkite's wallets: simple, robust and Bitcoin-focused, with no moving parts to fail.
As a punch-based plate, its strengths are durability and simplicity. The stainless steel is fireproof and waterproof, punched marks can't smudge or fade, and there are no loose tiles to fall out or reorder. Because it comes from Coinkite, it pairs naturally with a Coldcard workflow. The trade-offs are the familiar ones for punch plates: marking is permanent so mistakes are costly, and recovering your seed later means reading dot positions against the printed grid rather than reading plain words.
Buy it if you own a Coldcard or simply want a solid, reputable, punch-style steel plate built for a 24-word seed. If you use a 12-word seed you may prefer a plate sized for that, and if you want to read your seed back as spelled-out words, a tile or stamped-letter design will suit you better.
Key features
- Stainless steel plate from Coinkite, makers of Coldcard
- Sized and marked for a full 24-word BIP39 seed
- Centre-punch dot marking — permanent and smudge-proof
- Fireproof and waterproof solid-plate construction
- Pairs naturally with a Coldcard self-custody setup
- No tiles or moving parts to lose
- Simple, minimalist Bitcoin-focused design
Specs
- material Stainless steel
- method Center punch
Who it’s for
Coldcard owners who want a matching, no-frills steel plate.
Coinkite SEEDPLATE 24: frequently asked questions
Does it work with a 12-word seed?
It's designed around a 24-word layout. A 12-word seed can be recorded, but a plate sized for 12 words may be a tidier fit.
What tool do I need?
A centre punch to mark the dots. Any standard automatic centre punch works.
Do I have to own a Coldcard?
No. It stores any BIP39 seed from any wallet; the Coldcard link is brand affinity, not a requirement.
Can I edit it later?
No. Punched marks are permanent, so verify each letter before punching.
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