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Anyone have experience with Kingston industrial microSD cards? I’m seeing 16GB around $20.

Looking for a couple backups (for something like a ColdCard) and $40 for the ones sold by CoinKite just seems like a lot.

I do recognize these cards aren’t cheap and it can be tough to find good ones, so if the advice is “just go with CoinKite”, I will. Also trying to gauge what sort of storage space I’d need for a rarely-used cold storage signer.

Thoughts? #asknostr

QW 11mo ago

I did enough research to come to this conclusion. It’s a little rabbit hole but less is more in regards to security when splitting hairs on storage size

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Discussion

rejon 11mo ago

Just go with coinkite because they doing QA

SD card are super unregulated and mess to get tested chips

boston wine 11mo ago

This is why I’ve been hesitant/hoping to find a reputable company with reasonable pricing

SLCW 11mo ago

The 8gb San Disk are the way to go. There's no reason to buy a 16gb for a Coldcard. 8gb is plenty of space for what you need. Amazon has a good sale on multi-packs of these SanDisk cards.

boston wine 11mo ago

Perfect 🤙

Marc Kat 11mo ago

I use these too. I like the Q BBQ codes though. SD cards suck.

boston wine 11mo ago

I’m working with an MK4 (and of course have steel too) so just looking for redundancy (and also forgot that the coldcard doesn’t automatically come with an SD card when I bought a second one)

Marc Kat 11mo ago

I have an MK4 too. I have a hard time with the NFC though. NFC works great with the tap signer, but not so much with the MK4.

I like using it with the Cold Power and a 9v battery though. It looks cooler, but the AAA batteries on the Q are easier.

boston wine 11mo ago

Looove the ColdPower

boston wine 11mo ago

Thanks brother! Appreciate you