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?
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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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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.
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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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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?
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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
I am getting between 1000KB/s and 1500KB/s transfer speed both to my class 4 8GB Sandisk MicroSD, and the internal flash storage (/sdcard/)..
I am nearly positive it goes much faster when I plug in my microsd into a adapter and transfer that way. Is there an explanation to this?
I have adb version 1.0.29
I am using SGS2 with Restruction ROM with Fluxi Kernel and transferring files to external SD (Samsung Class 10) through mass storage mode and it is extremely slow (less than 1MB/s even when large files). Took out the card and tested with card reader, it can write more than 20MB/s.
zhihao said:
I am using SGS2 with Restruction ROM with Fluxi Kernel and transferring files to external SD (Samsung Class 10) through mass storage mode and it is extremely slow (less than 1MB/s even when large files). Took out the card and tested with card reader, it can write more than 20MB/s.
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The speed is limited by weakest point in the system. Check USB cable, port and other end device, too.
SachinShekhar said:
The speed is limited by weakest point in the system. Check USB cable, port and other end device, too.
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Previously I got no problem with Gingerbread (CheckROM). Same port, same cable.
The reason I post here is I got less than 10 post. Hope to find answer here anyway...
Edit: Solution Found: USE REMOUNTSD
Hey all,
i bought a 64GB MicroSDXC Class 10 / UHS 1 for use in my HTC Sensation XE. It came formatted with exFAT which isnt an option on the Sensation so i reformatted the card to FAT32 (allocation unit size 32KB, was the default setting in the tool i used). Now, when i transfer files while accessing the card via card reader in my computer, the write speed is somewhere between 9 and 10 mb/s, which is fine. When i use the card in my phone though, the write speed for large files is only about 5 mb/s. The really odd thing: for the last months i've been using a 32GB card that also has class 10, and it gave me those 9-10mb/s while using it in the phone, too. Which means the bigger card is considerably slower than the old one, although the speed class is the same, and they both work at they same speed when plugged in in the card reader. Why is the new card working so much slower in my phone?
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.