[Q] Does 32 GB class 10 Memory Cards Compatible with the HD7

[ihabsad]

Hello Every Body,

Can any body please confirm if the class 10 32 gb memory cards such as Kingston or A-Data are compatible with HTC HD7.

I read here before in XDA that only the class 2 cards from Scandisk are only the one that are compatible with the windows phone 7 devises.

But in this thread http://forum.xda-developers.com/showthread.php?p=10354934
dorianmuthig says that class 4 cards are compatible also.

So my Questions are:
1- Are Kingston or A-Data or other brands are compatible with the HD7 (because I already have 32 gb class 10 A-Data memory card)?
2- Are class 4 or above classes are compatible also?

Thanks in advance and I appreciate if any body can clear these inquiries for all to be benefited.

 

[nuclear]

There is no such thing as a class 10. and as i have read at multiple places only class 2 sandisk cards have been confirmed working. everything else doesnt work this means class4 etc...

 

[ihabsad]

There is no such thing as a class 10. and as i have read at multiple places only class 2 sandisk cards have been confirmed working. everything else doesnt work this means class4 etc...

Thanks nuclear for replay,

for your information there is a class 10 32 gb memory card

I hope that some body who tries higher classes than class 2 tells us his experiment

 

[kwill]

Apparently there is class 10 (16 and 32gb) cards available. http://www.google.com/search?sourceid=chrome&ie=UTF-8&q=class+10+32+gb+microsd But, from what has been discussed class 2 are the only ones that have been confirmed to work properly (not decreasing boot times and app launching times). So, I would be cautioned to buy one until there is more definitive information as they have to be pretty expensive.

 

[nuclear]

Apparently there is class 10 (16 and 32gb) cards available. http://www.google.com/search?sourceid=chrome&ie=UTF-8&q=class+10+32+gb+microsd But, from what has been discussed class 2 and 4 are the only ones that have been confirmed to work properly (not decreasing boot times and app launching times). So, I would be cautioned to buy one until there is more definitive information as they have to be pretty expensive.

Where did you read about the class 4 card?

 

[kwill]

Where did you read about the class 4 card?

Oops, my bad. Mis-stated that one. Class 2 is all that's confirmed. For some reason i was thinking the tutorial to change it to 32 gb was using a class 4. Slap me

 

[ihabsad]

It seems that we should wait for some time to be sure

And if any body try other classes higher than class 2, please inform us withj the results

 

[dorianmuthig]

It may work, however since Kingston and A-Data use Sandisk or Samsung manufactured cards with a secure digital storage controller optimized for fast sequential read and write, small file access may actually be slower than in a comparable Class 2 card. Those fast cards are made for video recording and high resolution photography which isn't what Windows Phone 7 OS needs. You need to look at 4K random read, 512K random read/write and sequential write.

Get either a Sandisk SDSDQM-032G-B35 (definitely works) or SDSDQM-032G-J35A (current manufacturing cycle, promises faster speeds and lower power consumption, still rare)

 

[pencilcase]

kingston class 4 = does NOT work.
sandisk class 2 = works (same speeds as the kingston though!)

thats as far as i tested.

 

[ihabsad]

kingston class 4 = does NOT work.
sandisk class 2 = works (same speeds as the kingston though!)

thats as far as i tested.

Thanks for the advice,
But what about scandisk class 4 or higher are they workable

 

[nuclear]

Thanks for the advice,
But what about scandisk class 4 or higher are they workable

SanDisk class 4 has just been released and is available on Amazon for $100. I am getting a class 2 which is tested and confirmed working. The class 4 if it works should be much faster.

 

[lilila]

Sandisk SDSDQM-032G-B35 was not working properly on my HD7. Slow, freezing, crashing, and sometimes not detected card. All kinds of bad behavior. The original 16 GB card was sent back into the phone, now every thing works OK.