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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.
I'll toss it when I toss my plastic tupperware. The problem is re-usability, not what it's made out of. SD card gets tossed out, doesn't matter what it is made out of, it's going to pollute.
What a downvote Nancy.