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up vote 6 down vote favorite

The HTC Desire spec states that it supports:

microSD™ memory card (SD 2.0 compatible)

I saw on the Secure Digital entry on wikipedia that there are 3 protocols: SDSC, SDHC and SDXC - how can I know which of them my device supports?

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6 Answers

up vote 6 down vote accepted

the "HC" in every SD-Card name simply means "high capacity" - i.E. every SD card with more than 8GB is a SDHC card. Every "SDHC" Card is SD-Standart 2.0 ("SD 2.0"). Which means your device is compatible with a microSDHC card up to 32 GB.

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up vote 4 down vote

In general, you can assume that "SD" refers to "SDHC". It's the standard. If your phone supported SDXC, it would definitely be advertised.

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up vote 3 down vote

The HTC Desire supports only microSD and microSDHC up to 32GB. SDXC is still relatively new and at present no handsets support it.

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1  
Thanks, any chance you know this from official documentation - something you can refer me to? – RonK May 31 '11 at 12:30
up vote 1 down vote

I have a 8Gb Class 10 microSDHC in my Desire.

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up vote 1 down vote

16GB microSDHC here with no problems.

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up vote 0 down vote

32GB Lexar microSDHC class 10 card. With SD tools benchmark I get 23.7 MB/s read and 9.1 MB/s write performance on CyanogenMod 7.1-RC1. On stock 2.2 ROM it had considerably lower values with read even less than write. The benchmark is run just after reboot to prevent caching mechanisms inflating the real values.

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