[chbot] SD cards...

[hamster]

You detect only the tiniest bit sarcasm for pointing out that every
silver lining (cheap uSD) has a cloud (low write speeds). I am pretty
sure that everybody knows that an inexpensive uSD card is a inexpensive
SD card, and you have to pay for performance. 

But I was not sure that
everybody knows about the "UHS Speed class mark" (aka "number in a
bucket") that indicates the guaranteed write speed for SD cards, in tens
of MB/s. So far from the write performance being unspecified it is
clearly indicated on the card itself (if anything in a tiny logo on a
uSD card can be considered clearly indicated!). 

I didn't know about
the new "Vnn" mark (where 'nn' is the guaranteed write speed in MB/s)
till I just looked at
https://www.sdcard.org/developers/overview/speed_class/ - obviously a
new attempt at confusing consumers :-). 

Mike 

On 29.04.2018 20:07,
Volker Kuhlmann wrote: 

> On Sun 29 Apr 2018 19:42:10 NZST +1200,
Michael Field wrote:
> 
>> You could always instead pay $89.90 for a
32GB SanDisk card with the '3 in a bucket' logo (30MB/s) if write
performance is important to you.
> 
> That would be somewhat daft.
> 
>
I just paid $31.50 for a 16GB Sandisk ExtremePro 90MB/s write speed
>
(special order but available), big enough for many RPi applications
and
> I don't waste my time over $14.50,
> $31 for 32GB Sandisk Extreme
60MB/s write speed,
> $39 for 64GB Samsung EVO plus 60MB/s write speed,
because the specs are
> good and it's cheap so why not check it out.
>
All PB Tech Easter special.
> 
> Am I detecting a bit of sarcasm in your
reply which I think is misplaced
> here, or am I being overly sensitive?
I pointed out a factor to
> consider. I didn't tell anyone what they
should or should not do with or
> for their applications.
> 
> Volker

 
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