SDHC or SDXC?

Richie

Richie

Richie

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I was going to put this into the S3 thread but thought others might want find any info useful.

I am looking at getting an SD card for my S3. The two I am looking at are both Sandisks:

32GB SDHC Mobile Ultra (largest SDHC)
64GB SDXC Mobile Ultra (only size available)

I know the S3 supports SDXC but the question(s) I have are:

1. Will future devices support SDXC as standard or will I be stuck with a card that is only compatible with some devices.
2. Is there any real World difference between SDHC and SDXC apart from the 4GB+ file size allowed by SDXC

Dependant on the answers to these would possibly make me change from 32GB SDHC to 64GB SDXC. The larger one is double the price.

Thanks :)
 
4GB+ fize size is to do with the the file format not SD standard. A 16GB card can be formatted to exFAT to access 4GB+ files in the S3.

SDXC just means Xtreme Capacity afaik - i.e. starting from 64GB upwards cards.

Get a class 10 for fast 10MB/s+ write speeds if you do a lot of copying.
 
Hmmm...

The way I have read it is

1. SD
2. SDHC
3. SDXC

Devices that support SDXC also support SDHC and SD (backwards compatible)
Devices that are SDHC also support SD (backward compatible) but NOT SDXC (forward compatible)

This appears to be a separate issue from exFAT.

I am happy to spend more on the SDXC card but I don't want to be stuck with a useless card if I ever change devices and the new device only supports upto SDHC cards....

I am hoping new devices all support SDXC standard...
 
I answered your second question.

To answer your first q - all future high end devices should support SDXC from now on.
 
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