Best way to store ledger nano 24 words seed phrase.

[SFR10]

I'm using safepal cypher metal to store my seed phrase and that's more than enough secured I think as you can lock the metal box, box won't melt down in fire and also not possible to get destroyed by anything else.

I couldn't find any stress test review for this specific seed storage model but despite their high melting point, it appears that some of the tiles tend to fall out ^{[under certain stress]} in almost all of the other similar rail-based storage models ^{[IMO, the expansion part is a design flaw]}:

e.g.

• Keystone Tablet Plus
• Cobo Tablet
• Steely
• Steeldisk
• Cryptosteel Cassette

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[dkbit98]

No one recommended a better storage option?
I'm using safepal cypher metal to store my seed phrase and that's more than enough secured I think as you can lock the metal box, box won't melt down in fire and also not possible to get destroyed by anything else.

Safepal cypher metal is one of the worst choices you could pick, and there are multiple reasons for that, but if you don't trust me check out testing Jameson Lop did with many metal seed storage solutions.
It has a bad design of individual letters in combination with overpriced product ($45?!) that never undergone independent testing, and it would most likely crumble under high pressure, making it unusable.
All similar design failed miserable in Jameson Lop testing, so you can pick anything from that list that has rating A:
https://jlopp.github.io/metal-bitcoin-storage-reviews/

Never buy anything with removable individual letters and screws for seed phrase backup!

Much better and cheaper DIY alternative for this is to use stainless steel washers and add your own seed words.
There is one example how to do this posted by (Italian pizza mafia boss) member fillippone:
https://bitcointalk.org/index.php?topic=5389446.0

[fillippone]

I would recommend backing up the seed phrase following the KISS principle.
Very important privacy-wise:

Securing Your Seed Phrase with Washers

This methods allows you to securely store your seed phrase with a very good mix between security and privacy.

[Tibu]

Did you check Seedkeeper.io ?

This is a smart card that act as a secure element.
Chip memory access is secured by a PIN code.

You can safely store your seeds and other secrets within the chip memory.

Waterproof, low form factor... The card is pretty affordable. You can get multiple card and create multiple backup.

Check out: https://seedkeeper.io
And the webshop: https://satochip.io/product/seedkeeper-crypto-secrets-vault/