Well, I just got the SanDisk 64GB microSDXC. As I predicted, the SGS2 couldn't read the exFAT filesystem the card is formatted with. However, the SGS2 did format it as FAT32, and seems to accept it as a valid device.

I'm now copying my old 32GB card to the new 64GB, using standard USB microSDHC card readers on a Windows box. But before I did that, I ran SDTools on the microSDXC. Read speed 18 MB/s, write speed 6.6 MB/s; see the attached snapshot. Those numbers suggest to me that the device is the bottleneck, not the card.

So, aside from the lack of exFAT support, it looks like microSDXC will work.

Does ur phone see 64 GBS AND WILL IT LET U ACCESD THAT SPACE ?

Sent from my PG06100 using Tapatalk

I reckon by next year you'll be able to use a 96GB Micro SD card in smart phones, i still have only 8GB and am happy enough with that but ill probably get a 32GB card at some stage.

Originally Posted by 3waygeek

Well, I just got the SanDisk 64GB microSDXC. As I predicted, the SGS2 couldn't read the exFAT filesystem the card is formatted with. However, the SGS2 did format it as FAT32, and seems to accept it as a valid device.

I'm now copying my old 32GB card to the new 64GB, using standard USB microSDHC card readers on a Windows box. But before I did that, I ran SDTools on the microSDXC. Read speed 18 MB/s, write speed 6.6 MB/s; see the attached snapshot. Those numbers suggest to me that the device is the bottleneck, not the card.

So, aside from the lack of exFAT support, it looks like microSDXC will work.

I get the same speeds with my class 6 TeamMicro 16gb. Must be a limit of the S2. See what speeds you attach the SD to your computer.

Originally Posted by Trev186

Does ur phone see 64 GBS AND WILL IT LET U ACCESD THAT SPACE ?

Yes and Yes. The phone says the SD card contains 59.46 GB, all of which appears to be accessible. I bought the card directly from SanDisk, so I'm pretty sure it's not a fake.

Originally Posted by jonny68

I reckon by next year you'll be able to use a 96GB Micro SD card in smart phones, i still have only 8GB and am happy enough with that but ill probably get a 32GB card at some stage.

Actually it is most likely to be 128 GB next year. It should double year after year if not quicker. Look up SDXC it goes to 2 TBs. If this only requires us to reformat the SD card this is going to be a lot of fun

I use several streaming services for movies and music. With this u can tell em to shove it and keep everything on the card. Who cares about the cloud when u have it with u everywhere without it

Sent from my PG06100 using Tapatalk

Originally Posted by 3waygeek

Well, I just got the SanDisk 64GB microSDXC. As I predicted, the SGS2 couldn't read the exFAT filesystem the card is formatted with. However, the SGS2 did format it as FAT32, and seems to accept it as a valid device.

I'm now copying my old 32GB card to the new 64GB, using standard USB microSDHC card readers on a Windows box. But before I did that, I ran SDTools on the microSDXC. Read speed 18 MB/s, write speed 6.6 MB/s; see the attached snapshot. Those numbers suggest to me that the device is the bottleneck, not the card.

So, aside from the lack of exFAT support, it looks like microSDXC will work.

Any further updates on how its working in the phone?

Originally Posted by NZtechfreak

Any further updates on how its working in the phone?

Seems to be working fine so far. I ran the SD Card Tester app overnight, creating a 40 GB file to fill up the card and verify that all 64GB are accessible. I've also played some HD video and MP3 audio off the card, all without issue.

I'm pretty satisfied with that. I've established that microSDXC cards will work in the SGS2 with a reformat to FAT32. Native support for exFAT would be nice to have, so you wouldn't have to reformat, and so you can have files > 4GB and not have to split up your DVD/BluRay rips.

Awesome, thanks again for that. Mine will arrive later in the week, so I will also post results here for people who are still sitting on the fence. Can't wait, I need 78GB!

Wow, good to know this, would definately use more GB for my music/video collection :P So is it really confimred that 64gb micro SDXCs are working ? Do you think 128gb would work too ?
But I cannot find them anywhere, can anyone send me a link for a 64gb sdxc on ebay ?