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This thread is produced for people who may have interest in purchasing the 4GB micro SDHC memory Card, with info and a simple test that I have conducted with the latest 4 GB, 6GB and 8GB micro SDHC memory cards.
So far there are only four brands available on the market, but may be more, these are the Toshiba, kingston, Adata and Sandisk. So before you go out and buy yourself one of these, you must take into consideration of the following points.
-Micro SDHC is not compatible with all device that supports Micro SD,
-Micro SDHC/Full size SDHC are only in there early stage of the market,
And 4 GB is the smallest size available going up to 32 GB, Although larger sizes may not even make their way onto the market.
-Some people have issues with these cards, saying they are thicker than normal Micro SD, and having problems removing them from their devices, although none of the problems has arisen yet for me.
-The prices of these cards are quite expensive, anything from USD 47 to USD 140, depending where you buy them from.
-Due to high prices not many places stock these cards when they were first released, but now they are more popular and are much easier to find. The Adata, Sandisk and kingstons are much easier to find, but the Toshiba brands are mainly sold in Asian, and harder to find in US and the UK.
-Unlike normal Micro SD/SD cards, where manufacturer label individual card for their speed as 25X, 45X, 60X, 66X, 150X, high speed, ultra high speed, turbo and super etc.
This is very confusing for people in search for a fast memory card and can be very misleading, for SDHC the speed is divided into three classes.
Class 2 = 2MB/s
Class 4 = 4MB/s
Class 6 = 6MB/s
The Classes are referred to the minimum write speed, as for the read speed, this will depend on the manufacture.
-The only devices that I know which supports the 4 GB SDHC is:-
Nokia N95 mobile phone
Nokia 6110 Navigator mobile phone
Nokia 6500 classic slider mobile phone
Motorola Z8 mobile phone
HTC Touch window mobile 6 PDA
HTC Touch Enhanced version
HTC Touch Dual
HTC P3600I
HTC Tytn II and all the variations
Cyclops Cyclos DS Evolution Flash Carts
M3 DS Real
M3 DS one SDHC
There are others, these are the only one I know.
Here is a simple test using the program HD Tach to test the speed of these cards.
To conduct this test, the following were used:-
PC using p4 3.00GHZ CPU, 80GB HD with 512MB Ram, with only five programs installed.
6GB and 8GB tested on my Pentium III Dual 1.266GHZ cpu, 120GB HD with 768MB Ram.
HD Tach windows program
Micro reader (memory card reader made by Adata, one of the fastest readers on the market for Micro SD)
Kingston/Toshiba 4 GB class 4 SDHC micro SD made in Japan
Sandisk 4 GB class 2 SDHC micro SD made in China/Taiwan
Adata 4GB class 6 SDHC micro SD made in taiwan
*Updated 6-12-2007
*Added
Adata 4GB class 6 made in Taiwan Version 2 (Second released batch has different layout of the PCB)
Sandisk 6GB class 4 made in china (test has been done on a lower spec PC, so if a better spec PC is used, results may be better)
*Updated 7-12-2007
*Added
Sandisk 8GB class 4 made in china (test has been done on a lower spec PC, so if a better spec PC is used, results may be better)
*Updated 2-1-2008
*Added
Kingmax 4GB class 4
Test Results
Sequential Read Speed
Toshiba 20MB/s
Sandisk 10.8MB/s
Adata 20MB/s
Adata V2 20.1MB/s
Sandisk 6GB 19.4MB/s
Sandisk 8GB 19.5MB/s
Kingmax 4GB 16MB/s
Burst Speed
Toshiba 20.6MB/s
Sandisk 10.8MB/s
Adata 20.4MB/s
Adata V2 20.4MB/s
Sandisk 6GB 19.9MB/s
Sandisk 8GB 20.1MB/s
Kingmax 4GB 15.9MB/s
Random Access
Toshiba 0.9ms
Sandisk 1.1ms
Adata 0.7ms
Adata V2 0.7ms
Sandisk 6GB 1.6ms
Sandisk 8GB 1.7ms
Kingmax 4GB 0.8ms
Average Read Speed
Toshiba 19.8MB/s
Sandisk 10.7MB/s
Adata 19.8MB/s
Adata V2 19.7MB/s
Sandisk 6GB 19.3MB/s
Sandisk 8GB 19.5MB/s
Kingmax 4GB 15.5MB/s
Write Speed in Seconds with 129MB (131MB for 6GB and 8GB Micro SDHC) of Data transfer from PC to Card using Cut and Paste.
Toshiba 26-27s
Sandisk 28-29s
Adata 15-16s
Adata V2 16-17s
Sandisk 6GB 13s
Sandisk 8GB 12-13s
Kingmax 4GB 16-17s
Actual write speed in MB/s
Toshiba Approximate 5MB/s (32X)
Sandisk Approximate 4.3MB/s (28X)
Adata Approximate 8.6MB/s (56X)
Adata V2 Approximate 8.2MB/s (52X)
Sandisk 6GB Approximate 10.1MB/s (70X)
Sandisk 8GB Approximate 10.2MB/s (70X)
Kingmax 4GB Approximate 8.2MB/s (52X)
Actual usable memory size of cards before format in GB.
Toshiba 3.74GB
Sandisk 3.79GB
Adata 3.81GB
Adata V2 3.74GB
Sandisk 6GB 5.68GB
Sandisk 8GB 7.60GB
Kingmax 4GB 3.74GB
All info and data from this test was collected and produced by me, so if anyone has questions regarding the accuracy of the contents, I will not be held responsible for any errors that you may encounter from it.
Due to differences of the card reader and PC specs used, other ppl will get different results whether it's better or worse, but figures will be very similar.
FYI: The Red and Black micro SDHC reader in the photo is called the mobile mate micro reader by sandisk, it can reader and write both micro sd and sony M2, and is supplied as a package with the 8GB Micro SDHC, and read/write at full speed, although the test did not use it.
kms
Awesome info! So, no difference in reading between Class 4 and 6 with your set up. But the advantages were seen in writes.
So, from your writeup, no phone was used in this test. Any chance a similar test could be run using the phones? I dont know if any such tools exist for WM...
if you buy a card with a class 6, you definate get at least 6MB/s transfer speed, as for class 2 and class 4, it doesn't mean it's slower, even these can reach a data transfer rate higher than the class 6, but is not guaranteed, looking at my results, you can see that class 2 and 4 has only a minor differances.
as for testing them out on the phone, i have'nt come across any programs that you can test out, but a fast card like the toshiba, kingston or the adata allows the phone to display thumbnail photos much quicker, as it does have a read rate of about 20MB/s compared to the sandisk at around 11MB/s.
kms
Does anyone know the speed of the microSDHC interface in the Kaiser? Maybe Class 6 would show no improvement at all over Class 2 ??
Chris
According to your tests, I bought the slowest card available! The Sandisk.... Thanks for the info!
Don't know if these figures are of any help (I really don't know what they mean in terms of speed etc) but I used Pocket Mechanic Professional to give me the info on my 4GB Sandisk in Orange TyTn II
Here's what it said . . . . .
File system read test (unbuffered) - 7.32 MB/sec (buffered) - 9.32MB/sec
File system write test (unbuffered) - 394.16 kb/sec (buffered) - 3.21 MB/sec
Does that help anyone??
tiptoekirk said:
According to your tests, I bought the slowest card available! The Sandisk.... Thanks for the info!
Click to expand...
Click to collapse
if you look carefully....
Sandisk is class 2
Toshiba is class 4
Adata is class 6
all with 4GB of space.
so infact, it shows how slow the Toshiba is in terms of writting....
all else, are quite well proportioned.
actually the toshiba is'nt the slowest, it does meet the industial standard, class 4, which offers at least 4MB write spped, by offering 5MB/s.
kms
kms108 said:
actually the toshiba is'nt the slowest, it does meet the industial standard, class 4, which offers at least 4MB write spped, by offering 5MB/s.
kms
Click to expand...
Click to collapse
well, all the cards did meet its specifications... just that when comparing in this test, and considering the classification at the same time, it just slightly faster than a class4 card, so that is relatively slow.... thats what I meant anyway.
Any Idea where i can by the Adata microsdhc card?
Prefered in Germany.
I can't find it.
What is the currently fastest 4GB Card for my Kaiser?
Seppl82 said:
Any Idea where i can by the Adata microsdhc card?
Prefered in Germany.
I can't find it.
What is the currently fastest 4GB Card for my Kaiser?
Click to expand...
Click to collapse
it's only available in hong kong so far, to what I know, may be is afew weeks you'll start seeing them in online stores.
kms
updated with adata second version and sandisk 6GB
updated with 8GB micro sdhc.
kms
kms108 said:
updated with 8GB micro sdhc.
kms
Click to expand...
Click to collapse
Any problems with the 8gb card and Kaiser? i'm looking to get an 8gb card you have any recomendations
Regards
Pilgrim
using the 8gb as i speak, you only get about 7771.30mb of usable memory.
kms
When is a larger one than 8GB coming out?
Supposedly the TYTN II & AT&T Tilt can support Micro SDHC up to 32GB... I am holding out until I run out of space on my old 4GB card... I want to buy a 32GB! But seriously...
when are the larger sizes coming out? Anybody read anything about what is appearing on the market and when?
Updated with kingmax 4GB Class 4
kms
KruseLudsMobile said:
Supposedly the TYTN II & AT&T Tilt can support Micro SDHC up to 32GB... I am holding out until I run out of space on my old 4GB card... I want to buy a 32GB! But seriously...
when are the larger sizes coming out? Anybody read anything about what is appearing on the market and when?
Click to expand...
Click to collapse
This is just technology business as usual. Why release the latest thing when you can milk the people out of there money by releasing the new technology in stages. Don't be fooled it will be awhile before the bigger sizes come out. But anyway HAPPY NEW YEAR TO ALL, THIS SITE ROCKS.
hi everybody
i'm looking for a SHDC microSD card and many thanks to who had open this topic.
i've listen all but i don't understand which is the better microSD for my Tilt: which is the most important parameter that i've to check to find it?
is it possible that the Adata are very good?i've right undestand?
help me
bye bye
if you can afford the 6GB or 8Gb, they are the best choice, with high read and write speed, but if your budget is low, consider the adata 4GB.
but in any case, the transfer rate for any of these cards when transfering direct from the phone, the speed are very similar, it's when you use a fast micro sd card reader, that it takes full advantages of the speed.
just a word to note, more is better, it's always better to have more memory available, than finding out you may need to buy another memory card later on.
kms
Related
Does Jade support "Sandisk Mobile Ultra 8 GB Class 6"?
or any brand with Class 6?
Yes. I use the Sandisk 8 GB class 6.
How about '"Sandisk Mobile Ultra 16 GB Class 6"? Anyone have try?
i heard it supports up to 16 GB SanDisk,
but i actually i tried the 4 GB one and it is Excellent
The SanDisk Mobile Ultra microSDHC 8GB, Class 6 (SDSDQY-8192) does not work with my htc touch 3g (german standard rom).
The Transcend microSDHC 8GB, Class 6 (TS8GUSDHC6) works great.
What does "Mobile Ultra" mean?
It's just a model name or something else?
Pom-AWD said:
What does "Mobile Ultra" mean?
It's just a model name or something else?
Click to expand...
Click to collapse
I think it is a Class 6 model..... as I didn't see Class6 in other series of Sandisk. What do you think?
I mean this model:
http://www.sandisk.com/Products/Ite...M-SanDisk_Mobile_Ultra_microSDHC_8GBCard.aspx
u995
I use ultra mobile 8GB class 6 Sandisk. Work perfectly fine.
Best result is actually 4GB or less. This is because the reading speed will be faster with a smaller capacity, esp when accessing MP4 video.
Writing speed will only be useful when u transfer file straight from PC.
GACL212004 said:
I use ultra mobile 8GB class 6 Sandisk. Work perfectly fine.
Best result is actually 4GB or less. This is because the reading speed will be faster with a smaller capacity, esp when accessing MP4 video.
Writing speed will only be useful when u transfer file straight from PC.
Click to expand...
Click to collapse
I'm going to buy 1 of 8Gb., if u say smaller size will better speed, how about devide it to 2 partition? we'll getting better speed than 1 partition of 8gb. ?
For that, I have no idea how to do that.
I even thought of defrag the content within SD card but was advised by the technical support that it will shorten the lifespan, and speed difference is very small. I did use 1GB card and it is way faster in say kick start a WMA file (about 9MB for one of them) or a mp4 video file at about 15MB.
You may wish to contact Vector Magnetics P/L, technical support on SD card.
Call Tel: 6338 0129 and ask for Rank. He might able to help you on card issue.
Hope the above helps
Hi All,
Just got myself a 16GB version of one of these:
http://www.transcend-uk.com/Products/ModDetail.asp?ModNo=195&SpNo=1&LangNo=0
to replace the stock 8GB Class 2 card that came with the phone. Unpackaged carefully to avoid dribbling on it
Have run benchmarks using both SKTools and Pocket Mechanic and ..... approx 5% SLOWER than standard card!! Have got SDTuneUp loaded, am I missing something glaringly obvious here???
SKTools summary results:
8GB Class 2 Sandisk (supplied with phone):
Buffered Write speed 910 KB/s
Read speed 7119 KB/s
16GB Class 6 Transcend:
Write speed 859 KB/s
Read speed 7021 KB/s
Could the glaringly obvious thing be *don't buy Transcend cards* ??!!! Am I benchmarking with the wrong software (figures vary greatly between the 2 apps but summary is the same - this card is slower)
Any tweaks I'm missing?
Cheers.
Bones.
Is this with the card in the phone or in a card reader?
Most likely it's the limitation of the phone. Try some desktop benchmarks with a good card reader.
You won't gain much speed from higher speeds cards on a phone.
ez2remember said:
Most likely it's the limitation of the phone. Try some desktop benchmarks with a good card reader.
You won't gain much speed from higher speeds cards on a phone.
Click to expand...
Click to collapse
hmm so whats the point of buying a higher class SD card?
Benchmarked in phone. I'll try in my card reader tomorrow. Got to say I'd be very disappointed if it's a hardware limit in the phone, class 2 cards are much cheaper than class 6 and HTC should have made this apparent if this is the case...
Will update when re-benchmarked, anyone got an comparison stats?
one comparison Class 6 to Class 4
At hand a Transcend 16gb Class 6 and Toshiba 2gb Class 4 SD cards measured in Thinkpad card reader:
Crystal Disk Mark mb/s
Transcend/Toshiba
Seq: 14.78/12.11 read 8.755/5.315 write
512K: 14.76/12.09 read 1.982/2.010 write
4k: 3.114/3.216 read 0.025/0.025 write
Not much there to recommend Class 6
Are you sure you have 8GB class 2 sandisk card? I got class 6 with the ppc.
My results in SKTools:
write: 642 KB/sec
read: 2963 KB/sec
That's 16GB class 2 sandisk card formatted with 32KB clusters. So i think your card is ok
Double post
Class6 does not mean that its faster its just "assure" you it can transfer up to 6mb/s. Thats prolly a device limit and not the card you should try it on a notebook or card reader outside phone. I thought the same when i bought a 16gb sdhc class6 SD for my axim - had no changes in speed at all =\
What speed is the 2GB stock MicroSD card the HD2 ships with? (Just to know)
IS Class 2 fast enough? I have a 16GB class two that I'd like to use, but not at the expense of performance on the phone, or problems, etc.
Anyone?
Class II is enough for a phone. Dunno the speed of the inserted one - guess it is class II. I'm using a class II 16GB mSDHC from Toshiba since more than a year and I never faced any problems.
Here I have done two micro SD benchmark using sandisk microSD reader:
SanDisk microSDHC 2GB Classe 2
SanDisk Mobile Ultra microSDHC 8GB Classe 4
The Ultra version has twice the speed of the stock one.
Yeah, that may be right and it could be faster when you copy some files to your phone or pull it down of it. But nevertheless the phone does not need more then class II, because it won't be able to exhaust it.
Even when recording video?
I'm sorry to report that I've returned the Kingston Class 4 32Gb microSD card for its failure to perform.
Performance writing to this Kingston card (from a desktop PC, card in either the N1, or the PC's card reader) was ~820KB/Sec
Writing the same data files to a Sandisk Class 2 16Gb card I achieved > 1.5MB/sec - i.e. approx twice as fast.
(PC is Acer Quad core 2.6Ghz jobbie with 8Gb RAM running Windows 7)
I found it really hard to get 4MB/sec out of the Kingston card - and only achieved it with 1 of the test options on CrystalMark. (write 1Gb sequential files)
When I tried this test with the 16Gb Sandisk class 2 card I got 10MB/sec. Clearly the SanDisk isn't a class 10 card - so I'm guessing the Crystal benchmark test isn't completely appropriate for SD card writers!.
I supplied Kingston with the packaging details / photos etc and they confirmed that it IS a real Kingston class 4 card. They agreed that performance should be better. LamndaTek clearly agreed too - after they received my return and tested it they gave me a full refund. (32Gb £83.66 (Inc VAT)). (Many thanks guys)
I guess the card was faulty.. but I might just be placing my trust in Sandisk now, as I've never had any problems with their cards.
I just thought that you all should know..
Graham
did you test it with a card adaptor or from the nexus one?
Also, if you're writing hundreds of small files vs one large file it makes a difference.
I think it was just a defective card.
Even the POS 32Gb cards floating around out there write at faster than 800kb/sec mb/sec.
SanDisk suck!
I will never buy any sandisk flash,sd card, micro again.. they have the worst CS i have ever delt with.. THey stand on their High Horse thinking their **** dont stink just because they said they only have a 1% defective rate.. which is crap if you ask me.. i went through some many defective flash drives used as keeping files on them and music to play in my scion xb.. So pretty much they told me i was mis using the device.. so i told them i would never buy from them..
so Kingston all the way now. they have the best CS i have ever delt with.. good day!
mynameisjon said:
did you test it with a card adaptor or from the nexus one?
Click to expand...
Click to collapse
I tested it with both options - the supplied adaptor - and also in the Nexus 1 - couldn't get it faster that I quoted, in any combination. Even tried a reformat - still no good.
Also, if you're writing hundreds of small files vs one large file it makes a difference.
Click to expand...
Click to collapse
It was a mixture of file sizes for the main copy, i.e. the contents of the 16Gb drive over to the 32Gb drive. About 14Gb were music files which come in at about 4Mb each.
As the other guys said above Kingston customer services were very responsive once they identified the card as genuine.. but LambdaTek were even more so.
I've still never had a Sandisk product give me an error though (I have 3 cards from them)
G.
I've used SanDisk for years without issue. Also been extremely happy with Lexar. Kingston, on the other hand, has been a complete letdown to me! A couple years ago, I bought a 4gb class 6 Kingston card for my digital camera. I didn't run any controlled benchmarks, but real-world use showed only about 2-3mb/sec transfer rates, which I thought was kind of slow. Also, as I was using a card reader instead of just plugging my camera in every time I needed to move pictures, the card was constantly being moved between devices. This proved fatal to the card, as the cheap plastic began to come apart. Never ever have I seen that happen to *any* SD card, even the cheap no-name ones! It started with the little tabs between each of the contacts, but didn't take long before the top and bottom of the card had begun to split. After a few months, the Kingston card was no good - all because of a disappointing casing. I wasn't rough with the card - I didn't treat this card any differently than others. In fact, I still have a 64mb SanDisk card from several years ago that's still going strong (great for sharing some jpgs, docs, etc.) So it might be worthwhile staying away from Kingston altogether...
Brands I've been happy with:
SanDisk
Lexar
Duracell
Transcend
Brands I've been disappointed with:
Kingston
so what is the deal with the N1 and its SD card speed?
i have a Transcend 8gb Class 6 card, i bought it for my G1 and recently got a N1.
on my G1 i would get an as expected 6 mb/sec or better copying files to/from it. in the N1 its never much more than 2mb/sec at most. this is apparently just when copying files via usb though
i just ran the app j bench mark 1.0.
when set to 10mb (2kb buffer) the default and lowest test setting i get
1.5mb sec write 2.5mb sec read
when set to 100mb (8km buffer) i get
6.16 mb/sec write
10.34 mb/sec read
so clearly internally the phone can and does handle the card at full speed but connected to PC's it does not.
and before anyone says it yeah i know just use a card reader to transfer large files.. whatever shouldn't need to do that imho
(megabytes not bits i am quoting here, i know the difference)
I have sandisk 16gb class 2 and under android 2.2 I gоt 1.5 mb/s and under android 2.1 I gоt 7-8 mb/s
gf_gollum said:
I'm sorry to report that I've returned the Kingston Class 4 32Gb microSD card for its failure to perform.
Performance writing to this Kingston card (from a desktop PC, card in either the N1, or the PC's card reader) was ~820KB/Sec
Writing the same data files to a Sandisk Class 2 16Gb card I achieved > 1.5MB/sec - i.e. approx twice as fast.
(PC is Acer Quad core 2.6Ghz jobbie with 8Gb RAM running Windows 7)
I found it really hard to get 4MB/sec out of the Kingston card - and only achieved it with 1 of the test options on CrystalMark. (write 1Gb sequential files)
When I tried this test with the 16Gb Sandisk class 2 card I got 10MB/sec. Clearly the SanDisk isn't a class 10 card - so I'm guessing the Crystal benchmark test isn't completely appropriate for SD card writers!.
I supplied Kingston with the packaging details / photos etc and they confirmed that it IS a real Kingston class 4 card. They agreed that performance should be better. LamndaTek clearly agreed too - after they received my return and tested it they gave me a full refund. (32Gb £83.66 (Inc VAT)). (Many thanks guys)
I guess the card was faulty.. but I might just be placing my trust in Sandisk now, as I've never had any problems with their cards.
I just thought that you all should know..
Graham
Click to expand...
Click to collapse
Had the same problem... RMA'd it with newegg and the replacement comes in tomorrow... I hold out hope.
Sandisk more me, no problem so far
My replacement Kingston class 4 holds out class 2 speeds on write of large files, less than that on write of small files. Blazingly slow on write, but faster on read than my class 6 8gb sandisk...
All in all... I can live with it for now...
The article below is an interesting read regarding Kingston and the sdcard market in general.
http://www.bunniestudios.com/blog/?p=918
Hi guys,
So I recently got an Acer a500 and was wondering what the best MicroSD card I can get for it is. I was thinking about a Sandisk class 4 32Gb SD Card. Is that good? I'm looking for a card that will be fast for supporting apps to SD Card. I also heard Sandisk is the best SD cards for Android. Would a class 10, 16Gb be better? I seen one but not Sandisk. Thanks for the help.
Papaniz said:
Hi guys,
So I recently got an Acer a500 and was wondering what the best MicroSD card I can get for it is. I was thinking about a Sandisk class 4 32Gb SD Card. Is that good? I'm looking for a card that will be fast for supporting apps to SD Card. I also heard Sandisk is the best SD cards for Android. Would a class 10, 16Gb be better? I seen one but not Sandisk. Thanks for the help.
Click to expand...
Click to collapse
There is no such thing as "best" as there are several dozen manufacturers selling cards, and still almost all the flash chips on them come from the same factories. If you want speed then obviously class 10 is better than class 4. Just make sure you don't buy one from eBay or such as those places sell fakes for suckers who do not know how to check if they are fakes or not.
My adata one I got off new egg a class 4 32GB had been good performs at class four speed and can load to full cap. Without error
Sent from my Nexus S 4G using Tapatalk
I'm thinking of getting a 16Gb, Class 10 flash card Kingston. Don't know if links are allowed otherwise would've linked it. It's $43.
SanDisk Mobile Ultra Class 6 32GB
I'm going for the SanDisk Mobile Ultra 32GB it's a Class 6 30MB/s depending where you are checking you can find it from 43 euros (amazon.de) to 100e, I think it's the fastest, I use SanDisks in all my devices, DSLR, mobile etc, most reliable so far. Not sure why Samsung for example calls its card a Class 10 if it's 24MB/s
Class is the write speed, like class 10 is 10 MB/s. The class bits can't go higher than 10, so it's a limitation of the SDHC specs. The read speed can vary though, so a 30MB/s read means it could probably write that fast, but it can't report over 10. It's set to whatever the mfg thinks is reliable for write speeds.
New interfaces are using UHS (50 MB/s r/w), DDR UHS (95 MB/s) while still calling it class 10 for older compatibility. Then there's UHS-2 which is 4x that.
Sorry to hijackthe thread, but we can go up to 64GB on the iconias, right?
Nope. 32GB is the limit for SDHC. SDXC goes to 2TB, but the Iconia is only compatible with SDHC.
my Asus transformer prime takes sdxc just waiting for some larger spec and cheaper ones to come out currently limited to 128 gb
Sent from my Transformer Prime TF201 using xda premium
CuriousTech said:
Class is the write speed, like class 10 is 10 MB/s. The class bits can't go higher than 10, so it's a limitation of the SDHC specs. The read speed can vary though, so a 30MB/s read means it could probably write that fast, but it can't report over 10. It's set to whatever the mfg thinks is reliable for write speeds.
New interfaces are using UHS (50 MB/s r/w), DDR UHS (95 MB/s) while still calling it class 10 for older compatibility. Then there's UHS-2 which is 4x that.
Click to expand...
Click to collapse
Oh yeah! My mistake.
Update: It is actually a UHS-I class, just read the description more carefully!
I'm using the Sandisk 64GB SDXC in my A501 and it works fine. I only had to format it in the PC to NTFS.
Sent from my A501 using xda premium
Interesting! What does it show for total space after NTFS format? If it's SDXC compatible, it should be able to handle anything up to 2TB.
It says total memory ("Gesamtspeicher" in German) is 59.46 GB.
I have copied many movies on the card (now only about 14GB empty space is available) and all files can be accessed fine.
It would really be nice to know if this means that we even could use cards above 64GB once these will be available...
Sent from my A501 using xda premium
Murpsel said:
It would really be nice to know if this means that we even could use cards above 64GB once these will be available...
Click to expand...
Click to collapse
SDHC-standard supports only up to 32GB cards, SDXC-standard supports much more than than but A500 does not support SDXC. So no.
Murpsel said:
It says total memory ("Gesamtspeicher" in German) is 59.46 GB.
I have copied many movies on the card (now only about 14GB empty space is available) and all files can be accessed fine.
It would really be nice to know if this means that we even could use cards above 64GB once these will be available...
Sent from my A501 using xda premium
Click to expand...
Click to collapse
There's no reason that it should have any trouble if it can handle 64GB as SDXC and NTFS have an addressable range of 32 bits x 512 (2TB). It's similar to switching from a 16-bit CPU to a 32-bit CPU. There's no 17-bit CPU.
It's hard to believe this has an SDXC interface though, but then the difference isn't as much hardware related as SD to SDHC.
I know that the A500/A501 should not be able to handle SDXC cards.
But at least my A501 does it very well with the Sandisk 64GB card. For everybody with doubts I have attached some proof.
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Sent from my A501 using xda premium
I know that the A500/A501 should not be able to handle SDXC cards.
But at least my A501 does it very well with the Sandisk 64GB card. For everybody with doubts I have attached some proof.
View attachment 879470
View attachment 879471
Sent from my A501 using xda premium
i to have put a 64 gb card in my tablet. It does work . I Have the card formatted NTFS. In 3 partitions.. i actually bought it to use in a windows tablet that i no longer own.
In my iconia i now keep a class 10 16 gb card that is PNY BRAND....I see No reason for anything larger.. With what i use my tablet for no reason to be bigger. the 64 gb card was over 100.00. but got on amazon with a gift card from another site...I also have a 1.8 micro drive. that is 128 gb .. that works awesome thru usb port.. I forget the brand as its in a generic case. i think its a Toshiba drive..Not looking while writing this as its in my purse downstairs...
every chic should have a hard drive in her purse right.. Giggles..
erica_renee said:
every chic should have a hard drive in her purse right.. Giggles..
Click to expand...
Click to collapse
I actually have a very neat portable hard drive in my phone: it has 32GB internal storage plus it also can be expanded with an SDHC card. And the phone can act as a regular USB drive, so it can be plugged to A500 or whatever. Terribly handy.
Yeah, I don't think I'd buy one right now at $3 per GB or even $100, but that's great news for the future when 32 is considered too small to be useful