cross-posted from: https://lemm.ee/post/41907712

14 points

So what?

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35 points

All the comments are fun and games but they could’ve used aluminium which is way cheaper. It’s nothing more than a marketing gimmick.

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4 points

Was about to say

  • cheaper
  • lighter
  • non-conductive
  • softer, won’t wear the port
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18 points

How is aluminum non-conductive? It’s literally used as a lighter and cheaper alternative to copper in wires

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2 points

to my knowledge, the only place they use aluminum as a conductor is in overhead external transmission lines, because you can wrap them around a steel or fiberglass/carbon fiber core (due to the skin effect this incurs minimal losses) while increasing strength and reducing weight (with the composites at least)

the secondary reason is because you can just use more aluminum, since it’s not nearly as dense as copper, and also allows you to string farther, since again, not nearly as dense.

most aluminum wiring is actually cladded in copper, it’s called CCA for what should be fairly obvious reasons.

Also i believe the oxide coating of aluminum isn’t conductive? The bare material itself is, but once it oxidizes it’s probably not a good conductor, this is why we use shit like gold plated contacts. Copper also oxidizes as well, but it’s not nearly as bad.

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2 points

Aluminium corrodes, and is a relatively soft metal.

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55 points

I feel like dealing with SD cards’ inevitable demise is more important than armoring them. What good is a stainless SD card that no longer functions after 2 years of use?

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2 points

Well considering that most of the SD cards I’ve had always died from foul play or physical destruction of some kind I think that armoring them is not without merit.

Obviously like all solid state media they do wear out over time, and their wear leveling isn’t as good as an SSD which has a much more sophisticated controller with much more sophisticated wear leveling management.

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49 points

What good is a stainless SD card

Better thermal conductivity and in turn dissipation than plastic does tend to longer lasting flash chips, how much this change means in real world practice though remains to be seen

Heat is a flash storage killer of all kinds

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24 points

It’s hard to believe that it would have taken 25 years for the many SD card builders out there to figure out that a heat spreader could solve the degradation problems.

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33 points

Why would they want to solve an issue that causes you to need a new product from them

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22 points

Isn’t there a danger of someone shorting data to voltage by inserting this thing wrongly?

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21 points

Also a good way to wear down your SD port if you remove this with any regularity.

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55 points

Should have used glorious Nippon steel, folded over 1000 times.

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4 points

Easy there Weeby McWeebson.

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19 points

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