So I bought this microSD:
http://www.amazon.com/gp/product/B00M55BS8G?psc=1&redirect=true&ref_=oh_aui_detailpage_o00_s01
(SanDisk Extreme 32GB)
and when I used crystal mark with my laptop card reader to bench it I got read and writes (even random 4k) around 20MB/s, which I think might be due to my laptop being somewhat old (2012). And when I tried using a benchmark on my S5 I got read and writes around the 30s. I was expecting reads to be much higher than that. I already ran FakeFlashTest and had no problems. Should I be worried that it could be a counterfeit? Am I probably doing something wrong?
Sounds normal to me, especially for the built-in reader. An USB3 Reader for the PC, which also harmonizes well with the particular card, could show much higher reads. Counterfeits usually have only 8GB, resulting in data corruption if mor stuff gets onto them. Counterfeit sticks always have a USB2 interface, to make it harder to test their real capacity.
I have such Sandisk mSDs, Class10 UHS I. Class 10 guarantees a continuous minimum transfer rate of 10mbyte/s, and if the reader is compliant, a somewhat higher rate according to UHS I standard.
lecorbusier said:
Sounds normal to me, especially for the built-in reader. An USB3 Reader for the PC, which also harmonizes well with the particular card, could show much higher reads. Counterfeits usually have only 8GB, resulting in data corruption if mor stuff gets onto them. Counterfeit sticks always have a USB2 interface, to make it harder to test their real capacity.
I have such Sandisk mSDs, Class10 UHS I. Class 10 guarantees a continuous minimum transfer rate of 10mbyte/s, and if the reader is compliant, a somewhat higher rate according to UHS I standard.
Click to expand...
Click to collapse
Yep, I tried using my brother's laptop and the results were much better! Its seems that the S5 cant really use it to its full potential though. At least I can record 4k directly to it
Related
I am about ready to buy a 16 GB class 10 micro sdhc for my Nexus One. Any ideas if this is a good card. Will it be totally compatible? And will I be able to transfer at the advertised speed? Does anyone have one of these?
http://www.newegg.com/Product/Product.aspx?Item=N82E16820139121&Tpk=SDC10/16GB
I think a class 6 is enough. Don't see a need for a class 10.
If HD recording ever gets adapted....or divx playback I'm sure the extra speed wouldn't hurt. The question is whether or not to nexus 1 will utilize it.
My class 6 micro sdhc card is only transferring at 2 MB/s through the data cable from phone to computer and vice versa. Either my card is taking a **** or something is wrong, it's definitely not 6 MB's.
So if I can pick up a class 10 micro sdhc and actually being able to copy music onto my sd card mounted in my phone at 10 MB/s I would be really pleased.
I just pulled the my micro sd card out of the phone and plugged it into a micro sdhc to usb adapter, and I transferred music onto the card through the adapter and it transferred at 6 MB/s no problem. So there is nothing wrong with my micro sd card. WTF Has it always been this way.
What I mean is: while the card is in the nexus and when you transfer music to the phone through the data cable, is the nexus only able to transfer at 2 MB/s? Through the Data Cable?
tommyarmour said:
I just pulled the my micro sd card out of the phone and plugged it into a micro sdhc to usb adapter, and I transferred music onto the card through the adapter and it transferred at 6 MB/s no problem. So there is nothing wrong with my micro sd card. WTF Has it always been this way.
What I mean is: while the card is in the nexus and when you transfer music to the phone through the data cable, is the nexus only able to transfer at 2 MB/s? Through the Data Cable?
Click to expand...
Click to collapse
Yup... I've noticed this too. It was the same on my G1. The card is capable of 6mb/s but the phone can only do 2mb/s through the usb...
uansari1 said:
Yup... I've noticed this too. It was the same on my G1. The card is capable of 6mb/s but the phone can only do 2mb/s through the usb...
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Click to collapse
That really is a bummer, I don't know why in the hell I haven't noticed this before. It really doesnt matter to me how fast my sdcard card is then. Because I never ever remove it from my phone. So a class 2 is pretty much all you need because that is the only speed the phone will ever transfer at.
tommyarmour said:
That really is a bummer, I don't know why in the hell I haven't noticed this before. It really doesnt matter to me how fast my sdcard card is then. Because I never ever remove it from my phone. So a class 2 is pretty much all you need because that is the only speed the phone will ever transfer at.
Click to expand...
Click to collapse
Unless you're rooted and run Apps2SD... but yeah, I'm unrooted on my N1 and plan on staying that way and I don't understand it either. Maybe there's a way to speed it up with a software update?
i get a steady 5.6...
piggie916 said:
i get a steady 5.6...
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Click to collapse
Let me get this right. You have your micro sdhc card in your phone. Then you plug the the usb data cable into your phone, then you mount the phone to your computer by the pull down menu on your phone, then you can transfer music to your sdcard at 5.6 MB/s? Are you sure about that? And you have to be able to transfer music off of your phone onto your computer at the same speed I assume.
The reason I am mentioning all this is I partition my sdcard to 3 partions fat32, ext3, and swap. So another words I had to transfer everything off of my sdcard, and transfer it back on after you created the partitions. And if you have 6 gigs of music this can take a very long time. Then I formatted my sdcard again for 1 partition and had to do everything again. At 2 MB/s that is a very long wait.
I guess I could of just pulled the sdcard from the phone and plugged it into my adapter and transferred at 6.0 MB/s. This sucks you would imagine the nexus could do this np.
It's amazing you can do it at 5.6 MB/s to your phone. Maybe you got a better version of the Nexus than I did?
Don't forget, there are two sides to the issue, the phone side and the computer side. Perhaps you could try another computer? I average 5.5MB/s from my Linux workstation.
Are you going through an old USB hub or direct to the computers ports?
rotohammer said:
Don't forget, there are two sides to the issue, the phone side and the computer side. Perhaps you could try another computer? I average 5.5MB/s from my Linux workstation.
Are you going through an old USB hub or direct to the computers ports?
Click to expand...
Click to collapse
Direct to the computer ports, and I am running windows 7, maybe I should try my ubuntu pc.
The phone's USB interface might be the limiting factor; when the phone is communicating directly with the SD card, it may be able to use its full potential. This would matter when you're recording video or using Apps2SD. Meaning that class 6 cards aren't necessarily pointless.
Also note that class 6 means 6 MB/s write speed, not read speed (as has been kind of said above - just waned to make it clear) - if you're reading it at 6 MB/s, that doesn't necessarily mean it's working right.
I don't have one to test with, sadly.
What I wanna know is where are the 32Gb Micro SDHC cards??
I have a 16GB a-data micro SDHC transferring via usb at speeds between 2-3MB/s
when i put the card in a card reader instead of the phone, xfer speeds are between 5 and 8MB/s
I'll try copying files to SD via wifi and bluetooth. if either of those are faster than 2-3MB/s, then the usb may be the bottleneck.
Are you guys benchmarking , or just going by screen stats ?
dang i didn't know they even made class 10.... I bought a class 2 16gb when they first came out, it just died actually so i'm waiting for sandisk to replace it. I've considered a class 6 but i don't see the point with 32gb cards coming out soon.
I've seen pre orders for late april on the 32gb's. other then that you can get one now if you import it from asia.
I am just wondering exactly what speed the Nexus One is capable of transferring at? Cause I can see alot of people are having the same problem as I am having with higher class sd cards. I know for a fact my class 6 sd can transfer at 6 MB/s and it does when its not in my Nexus One, so it's either the Nexus or the Data Cable that is eating the other 4 MB/s, cause I am only cable of transferring at 2 MB/s and no more.
Now when I talk about transferring I am solely talking about transferring music or data off of my Nexus to my computer and vice versa. I want to think it's just my Data Cable. But I wish I had this answer, I will today for sure.
Now is there a low speed Data Cable, maybe that is what Google sent me a low speed one, and maybe this 1 penny high speed data cable might solve me some problems.
http://www.amazon.com/gp/product/B0...11189&creative=373489&creativeASIN=B0018A6W94
Hi,
have you guys heard of a phone supporting usb 3.0? With my phone being capable of supporting up to 32GB MicroSD cards I found that transferring data is rather slow. I wish the Nexus Prime would support usb 3.0 but there is no information at all about this.
Probably I should go with a 3.0 card reader and use a MicroSD to SD card adapter to transfer my files...what a hassle...or what do you think?
I don't think microusb has been uptaded to 3.0 yet.
Sent from my LG-P500 using Tapatalk
Even if there was some kind of usb 3.0 support, I don't believe even microsd readers would be able to read at full usb 3.0 speeds. Hell, we still a lot of times don't even fully use usb 2.0.
True, but moving tens of gigabytes of music back and furth got me thinking about a faster solution...and then there are the roms for my playstation emulator...too slow with usb 2.0.
If I'm right, there should be this SD card reader that connects to your motherboard but I think that I'm wrong.
Sent from my LG-P500 using Tapatalk
You can buy a USB 3.0 capable card reader online (new so not able to post links yet) but they are quite pricey. I'm sure prices will drop when it becomes more wide-spread.
A quick Google search will point you in the right direction.
You might be waiting till Q4 of 2012 or maybe a lil earlier before you start seeing internal readers in phones that have usb 3.0....But Bluetooth 3.0 is in phones already, so perhaps companies will develop a reader with 3.0 tech sooner or later. Class 10 cards right now seem to be buggy and inconsistent, i've seen threads with people complaining about low speeds and corruption among other things with 10 class cards.
Sorry to bring back the old thread, I am thinking about the same thing.
Does anyone know if the next generation Android phone will have MicroUSB that support USB 3.0 speed?
Transferring a 1.8 movie from PC to the phone takes around 12 minutes, that's ridiculously long.
I wouldn't count on seeing those kinds of speeds anytime too soon.. microSD can't handle it and as other users have said, the class 10 cards are buggy more often than not or don't even reach usb 2.0 speeds.
I need either 16gb or 32 gb but am unsure if these faster cards work in this phone..
this card particularly: http://www.newegg.com/Product/Product.aspx?Item=20-171-580&IsVirtualParent=1
EDIT: well I ordered this one, hope it works..
IDK what UhS1 is but optimus t supports class 10 sd card AFAIK
Sent from my GT-I9082 using xda premium
read below abouth this sd card, UHS it was introduces in 2009 as standard and O1 was introduced in 2010 as low end device, there are good chances not to work as intended, it will work as normal sd class...(dunno), this card is intended to use USB 3.0 adapters for full speed
http://kb.sandisk.com/app/answers/d...eed-class,-uhs-speed-class,-and-speed-ratings
"UHS Speed Class was introduced in 2009 by the SD Association and is designed for SDHC and SDXC memory cards. UHS utilizes a new data bus that will not work in non-UHS host devices. If you use a UHS memory card in a non-UHS host, it will default to the standard data bus and use the "Speed Class" rating instead of the "UHS Speed Class" rating. UHS memory cards have a full higher potential of recording real time broadcasts, capturing large-size HD videos and extremely high quality professional HD."
grigtm said:
read below abouth this sd card, UHS it was introduces in 2009 as standard and O1 was introduced in 2010 as low end device, there are good chances not to work as intended, it will work as normal sd class...(dunno), this card is intended to use USB 3.0 adapters for full speed
http://kb.sandisk.com/app/answers/d...eed-class,-uhs-speed-class,-and-speed-ratings
"UHS Speed Class was introduced in 2009 by the SD Association and is designed for SDHC and SDXC memory cards. UHS utilizes a new data bus that will not work in non-UHS host devices. If you use a UHS memory card in a non-UHS host, it will default to the standard data bus and use the "Speed Class" rating instead of the "UHS Speed Class" rating. UHS memory cards have a full higher potential of recording real time broadcasts, capturing large-size HD videos and extremely high quality professional HD."
Click to expand...
Click to collapse
good point... I have it in my p500 now and its working properly....as far as the speed its operating, its probably working at a lower speed... it is a class 10 / uhs-1 card....so I dunno...
at least I've got space now tho ha.. I was using a 4gb class 4 before it..
Hello, it turns out that 128GB is out of stock in my city. Now, I have to choose a SanDisk 64GB. Is the Ultra microSDXC UHS-1 Card with Adapter (Class 10, speed up to 30MB/s 200x) the best for this device? I think I read a posting saying that the PRO 12.2 cannot take advantage of the Extreme, Extreme Plus and Extreme Pro. Is that true? If not, please let me know the model number of the recommended one. Thank you.
http://www.sandisk.com/products/memory-cards/microsd/
I just got this one
Sandisk
Class 10 (64GB) microSD, full size SD adaptor and mobile mate USB Reader
Not true. Extreme plus does run faster. I have one on order and will post a comparison to an ultra when I get it. I know it is faster because i had one in my first note pro and it performed as quickly as internal memory whereas now with the ultra that I am using in my new note pro file transfer to external microsd is slower than to internal memory.
Sent from my SM-P900 using Tapatalk
Is this very noticeable? Given that there is a write problem with KK, is it worth to get the Extreme Plus?
Value is subjective man; you're asking someone who basically spent $1500 US on a note pro having lost his first rig in an act of stupidity. Worth it? Definitely for me. I don't like waiting for long file transfers. I'd rather have a 64 gb card that's twice as fast than a 128 gb card.
Sent from my SM-P900 using Tapatalk
Thanks. Which one do you recommend?
SanDisk Extreme PLUS microSDHC/microSDXC UHS-I Card SanDisk Extreme PLUS microSDHC/microSDXC UHS-I Card
SanDisk Extreme microSDHC/microSDXC UHS-I Card SanDisk Extreme microSDHC/microSDXC UHS-I Card
For me write speed is critical. Both of those top out at around 50MB/s so you probably can't go wrong with either.
The one that I've ordered (and had before) is the Extreme Plus 64GB.
Ok I have to take back this statement: "it performed as quickly as internal memory"
Here's my test results utilizing two types of tests, one for approximately 125 files totalling 1.4GB (digital camera pics from a D7000) and another for a 1.9GB video file again from a D7000 camera. The files were placed on a Sandisk Extreme USB 3.0 64GB flash drive which was inserted into a USB 3.0 port. This served as the source for all test copies to the tablet/microSD cards and the source USB flash drive stayed in the same USB 3.0 slot throughout.
All times are presented in minutes and seconds.
Note Pro Internal Storage
1.9GB video file over USB 3.0: 0:40
1.9GB video file over USB 2.0: 1:24
1.4GB of photos over USB 3.0: 0:40
1.4GB of photos over USB 2.0: 1:07
Clearly, USB 3.0 transfer speed to internal memory is faster than USB 2.0.
MicroSD - Sandisk Ultra 64GB
1.9GB video file over USB 3.0: 4:42
1.9GB video file over USB 2.0: 4:48
1.4GB of photos over USB 3.0: 4:17
1.4GB of photos over USB 2.0: 4:18
1.9GB video file using USB 3.0 card reader: 4:45 **
1.4GB of photos using USB 3.0 card reader: 4:19 **
Clearly the write speed to this card is the limiting factor. It made little difference between USB 3.0 and USB 2.0. These measurements are not scientific, I'm merely using a stopwatch here and watching the progress bar on my Windows 7 machine.
MicroSD - Sandisk Extreme Plus 64GB
1.9GB video file over USB 3.0: 2:19
1.9GB video file over USB 2.0: 2:20
1.4GB of photos over USB 3.0: 1:47
1.4GB of photos over USB 2.0: 1:47
1.9GB video file using USB 3.0 card reader: 1:35 **
1.4GB of photos using USB 3.0 card reader: 1:18 **This is where I eat my words. It's not as fast as the internal storage in the tablet, but in my defense it definitely is faster than the Sandisk Ultra which is a Class 10 card. Also note that using a USB 3.0 card reader did give me faster results. I'm not quite sure what's going on there.
So . . . is it worth it to go to an Extreme Plus ? It's subjective once again but for me, spending $75 vs $40 isn't a big deal to get double the speed. If i'm rushing out the door to a meeting and I need to copy a few gigs of data to my device I know what card I'd want in it .. . .
If all you're doing is loading storage up with video files for use during downtime, say movies and TV shows then either card would be fine. If you're pushing data on and off of the card more often though then perhaps the speed will make a difference for you.
** Note: USB 3.0 Card reader was plugged into the PC. This test was to confirm transfer speed to the two different types of MicroSD card themselves without interaction with the tablet at all.
Thank you very much for the tests. The results could be very useful to all of us. Good job! Why you used a usb 3.0 reader instead of inserting the card directly to the internal sdcard slot? I think the PRO 12.2 only has a usb 3.0 port. Where are the data related to usb 2.0 coming from? It would be very useful to have the data when you use the card inserted into the memory slot.
The SD Card Reader results are to show transfer to the MicroSD card when it's inserted into an SD Card Reader that's plugged into the PC not the tablet.
Sorry I didn't make that clear. I'll edit my post to mention that.
The USB 2.0 speeds are data transfer when the tablet is plugged into the PC using a USB 2.0 cable. I'm not sure if you're aware but the only difference between a microUSB 3.0 and 2.0 cable is the addition of data conductors in the USB 3.0 cable. Hard to describe but if you look at the ends of the cables the end of the MicroUSB 2.0 cable is identical to one side of the 3.0 one. Charging is accomplished using this edge of the 3.0 cable so charging speed is no different between the two types but the additional conductors for data transfer yield increased transfer speeds on 3.0.
Sorry I am a bit confused. Where is the test results of using the SD card slot?
They are the ones without the asterisks.
Sent from my SM-P900 using Tapatalk
muzzy996 said:
They are the ones without the asterisks.
Sent from my SM-P900 using Tapatalk
Click to expand...
Click to collapse
Thanks. But those without the asterisks are either usb 2.0 or usb 3.0. I am looking for data related to the Ultra and Extreme PRO inserted into the sdcard rather than usb slot. Am I missing something?
I'm not sure where the confusion lies. Hopefully what I describe below will clear things up for you. All of the information is right there with headings and all.
Its broken up to 3 sections:
Section 1 - Note Pro Internal Storage: describes copying either 1.9GB single movie file or 1.4GB worth of photos to the internal memory of the tablet (not MicroSD) . . . utilizing EITHER a USB 3.0 cable connected to the computer, OR a USB 2.0 cable connected to the computer.
Section 2 - Sandisk Ultra 64GB: describes copying either 1.9GB single movie file or 1.4GB worth of photos to Sandisk Ultra 64GB card while its inserted in the tablet . . . utilizing EITHER a USB 3.0 cable connected to the computer, OR a USB 2.0 cable connected to the computer. . .
The card reader results (which are now identified with asterisks) are merely there to show what the file transfer times are IF THE CARD IS IN YOUR COMPUTER as opposed to being in the tablet. I included the card reader results to show you the maximum write speed of the card using the same test . . taking the tablet completely out of the equation. I suppose this is where you're getting confused because you're seeing the phrase "card reader" and thinking that I'm plugging a reader into the USB port of the tablet . . I'm not . . Again the purpose of testing write speed to the microSD cards in a card reader that's plugged into the PC is to set the benchmark for how fast the memory card really is without the tablet even being a factor.
Section 3 is the same thing as section 2 except for the Extreme Plus . . .
Again, all times are WRITE times . . either to the stock internal memory of the tablet or two the microsd card which is either inside the tablet or in an external card reader connected to the PC (no tablet involved).
By reviewing the times you can clearly draw a few conclusions:
1) that if you buy a Sandisk Ultra then the memory is slow enough to completely negate the need for a USB 3.0 cable when copying data to the card from any external source (clearly no matter what cable is used the times are the same) and
2) that the Extreme Plus is about twice as fast as the Ultra for write speed.
3) that the write speed for the tablet's internal memory is faster than the extreme plus which is currently one of the fastest available microSD cards
muzzy996 said:
I'm not sure where the confusion lies. Hopefully what I describe below will clear things up for you. All of the information is right there with headings and all.
Its broken up to 3 sections:
Section 1 - Note Pro Internal Storage: describes copying either 1.9GB single movie file or 1.4GB worth of photos to the internal memory of the tablet (not MicroSD) . . . utilizing EITHER a USB 3.0 cable connected to the computer, OR a USB 2.0 cable connected to the computer.
Section 2 - Sandisk Ultra 64GB: describes copying either 1.9GB single movie file or 1.4GB worth of photos to Sandisk Ultra 64GB card while its inserted in the tablet . . . utilizing EITHER a USB 3.0 cable connected to the computer, OR a USB 2.0 cable connected to the computer. . .
The card reader results (which are now identified with asterisks) are merely there to show what the file transfer times are IF THE CARD IS IN YOUR COMPUTER as opposed to being in the tablet. I included the card reader results to show you the maximum write speed of the card using the same test . . taking the tablet completely out of the equation. I suppose this is where you're getting confused because you're seeing the phrase "card reader" and thinking that I'm plugging a reader into the USB port of the tablet . . I'm not . . Again the purpose of testing write speed to the microSD cards in a card reader that's plugged into the PC is to set the benchmark for how fast the memory card really is without the tablet even being a factor.
Section 3 is the same thing as section 2 except for the Extreme Plus . . .
Again, all times are WRITE times . . either to the stock internal memory of the tablet or two the microsd card which is either inside the tablet or in an external card reader connected to the PC (no tablet involved).
By reviewing the times you can clearly draw a few conclusions:
1) that if you buy a Sandisk Ultra then the memory is slow enough to completely negate the need for a USB 3.0 cable when copying data to the card from any external source (clearly no matter what cable is used the times are the same) and
2) that the Extreme Plus is about twice as fast as the Ultra for write speed.
3) that the write speed for the tablet's internal memory is faster than the extreme plus which is currently one of the fastest available microSD cards
Click to expand...
Click to collapse
Thank you very much for the excellent tests!
I just bought a Kingston Kingston SDCA3/32GB which according to the Amazon page and many reviews should read and write at aroun 80Mb/s, I just inserted it in my phone and using A1 SD Bench it maxes out at around 35Mb/s, same with the phone connected to my PC with USB in Mass Storage mode, if not even less. Does anyone here own a similar Class 10 card? What are your r/w speeds? I'm trying to understand if the phone is unable to get the maximum bandwidth from this card or they sent me a fake. Unfortunately I don't have any decent adapter to benchmark it properly on my PC.