On 23/02/2021 20:56, David wrote:
I've just seen details of a device which uses a TF card.

Hadn't heard of this before so I tried to look it up but the information
seems to be a bit garbled and different depending on where you look.

I THINK that a TF card is a subset of a microSD card. That is, it has the
same basic functionality but doesn't come with a write protect tab or
extra data channels for use e.g. as a bluetooth adapter.

Don't think a micros SD has a write protect tab either (unless you put
it into a MicroSD to SD card adapter.

However it might just be an early name for a microSD card.

Or not.

Anyone know for sure?

I get the impression that its basically an old name for what we now call
a microSD - that went out of use when the SD consortium bought the
technology, but it has gained some use again (possibly due to licensing
issues with the SD consortium).

There is a somewhat garbled article he

https://www.easeus.com/computer-inst...s-sd-card.html


--
Cheers,

John.

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