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Lexar unveils the world's first SD cards made of 316 stainless steel
(www.techspot.com)
This is a most excellent place for technology news and articles.
Yes, stainless is "bad", compared to other metals. But like you also mentioned, it's loads better than plastic.
I'd doubt they make an aluminum one, it's probably not worth the tooling.
When dealing with only 100-200mW, even a small change in thermal conductivity will make a big difference.
One day the card will be conductive enough for us to complain it's hot when we take it out
Elemental silver SD card casing for maximum thermal transfer, when????
When somebody finds a better source of silver than the mines on Earth and is able to increase silver supply by several orders of magnitude.
What an age we live in
Seriously, my plastic cookware is terrible
But there's no better way to make a really traditional dioxin omelette.