Database Users

usb speed

Hey guys,
i just got an 8gb sd card for my xda star. when i used it with the shipped card reader i was very pleased to achieve about 20mb/s
now that i have it in my phone it's only about 1mb/s maybe even less.
how fast does your usb interface work?

1mb/s=10Mbits
10Mbits=USB1.1
It's normal speed for phone without usb2.0

ok,
the specs say, it's a usb 2.0 link so i expected more

My card is Sandisk 1GB, but it slow too...

UBS Cable Upload speeds very slow (1.5 MB/SEC) ??

When i try to UL large files to my desire HD I get very slow UL speeds around 2 MB sec max, sometimes it even gets stuck for a minute or so. I tried different USB ports etc.
What are your UL speed on average for larger files? How can I speed up my UL Speed?
Open to any suggestions
Thanks

you are using the wrong cable (UBS)
depending on the SD card class you have in your phone will determine the read and write speeds. I believe you recieve a Class 2 or 4 with the phone.

It depends on your SD card. A Class 2 card will have a max write speed of around 2 MB/s.

you are using the wrong cable (UBS)
Click to expand...
Click to collapse
LOL.
What SD card are you using? I'm still using the one that the device came with and it's copying at around 6MB/s.
Also If you copying a big as amount of small files the speed will decrease

I get 14MB/sec sustained transfer rate from PC to DHD on Kingmax 8GB Class 10 card.
On the original Class 2 card I get around 4MB/sec.

I've got a 16gb class 4 Dane-elec card and the write speed sometimes goes down to 850kb/s and never goes past 2mb/s
I tried the card in a different phone and also with the adapter to make it an sd card with the same results so i assumed the card was faulty. Getting it sent back for a refund, while copying my data back on to the standard 8gb card that comes with the phone the write speed is at 576kb/s.
Not really sure what to do now, have already reformated the 16gb dane-elec and that didn't help. My next card will be a SanDisk as i've heard good things from them.
Any help would be appreciated.

arielc said:
I've got a 16gb class 4 Dane-elec card and the write speed sometimes goes down to 850kb/s and never goes past 2mb/s
I tried the card in a different phone and also with the adapter to make it an sd card with the same results so i assumed the card was faulty. Getting it sent back for a refund, while copying my data back on to the standard 8gb card that comes with the phone the write speed is at 576kb/s.
Not really sure what to do now, have already reformated the 16gb dane-elec and that didn't help. My next card will be a SanDisk as i've heard good things from them.
Any help would be appreciated.
Click to expand...
Click to collapse
Might be a fake card. Class 4 should have a minimal write speed of 4 MB/s (actualy it should be even higher). SanDisk is an excellent choice if you have the money.

[q] sd card speed matters

Hello All I have a very simple question but plays a very important role in performance.
I got a 2GB SD CARD FROM SAMSUNG.
I have another LOCAL SD CARD 4GB
My question is will the SPEED Remain same to transfer or access data from both these SD CARDS.
I mean to say is will the LOCAL SD CARD BE SLOWER(since its not samsung branded) IN ACCESSING AND RETRIEVING DATA which will eventually slow down my phone or something like that.
I hope you all understood my question..will elaborate if u want me to.
hoping for a good answer.
Thanks

so many views yet no replies
cumon guys a small opinion would make a big difference

I am not very knowledgeable about this, but the class of the SD card matters when comparing performance. Here is a link that might help:
http://www.sdcard.org/developers/tech/speed_class/

i have noticed that when i changed sd card from samsung original (came with phone) to new transcend 8gb sd card, phone is now booting for 5 minutes....

It being a samsung card doesn't make the card more "compatible" with a samsung phone. A card is defined by the card, not by the brand.

martin.jeremic said:
i have noticed that when i changed sd card from samsung original (came with phone) to new transcend 8gb sd card, phone is now booting for 5 minutes....
Click to expand...
Click to collapse
yeah so it means that performance has degraded right.
Also i think booting is not much worry as its done from ROM
so apart from booting what else is buggy or degrading performance,comparing both 2 GB and 8 GB

its on a card to card basis, if it is slower for him it doesnt mean it will be slower for you.

You should use a Class 6 SD card. Slower cards are not adequate.
Sent from my GT-I5801 using XDA App

You can use a class 6 SD card, however, i do not think the phone is capable of handling such high speed cards, and thus the read/write speed of the phone will limit the speed.
Conclusively i don't think there will be an increase in performance!

what is the Read&Write speed of the SD card slot on Note 4 ?!

what is the Read&Write speed of the SD card slot on Note 4 ?!
which SD card should i buy?! if i buy an SD PRO CARD 64 GB 90MB speed
will it really work with 90MB when its pluged in to the note 4 ?! (couse i had it already and looked like it didn't)
so if i buy a normal EVO 64 GB it will be enough? or the note 4 SD card slot is capable for more speed of read and write ??

http://forum.xda-developers.com/note-4/general/post-questions-t2866827
/CK

amir84 said:
what is the Read&Write speed of the SD card slot on Note 4 ?!
which SD card should i buy?! if i buy an SD PRO CARD 64 GB 90MB speed
will it really work with 90MB when its pluged in to the note 4 ?! (couse i had it already and looked like it didn't)
so if i buy a normal EVO 64 GB it will be enough? or the note 4 SD card slot is capable for more speed of read and write ??
Click to expand...
Click to collapse
I am using Samsung EVO Pro 64GB microSD card. I was able to get around 80mb write and 120mb read speed. The 90mb speed is factory standard and you are likely to experience below 90mb transfer speed.

so i have no point to buy a SD pro with 90 speed MB ?
there is no full spec for what the note 4 is capable of...?? (the SD CARD SLOT )

..............??

External SD card painfully slow speeds?

Hi All,
I was wondering if I'm doing something wrong or if it's just to be expected. I have an S7 edge that I'm attempting to move apps to the SD card and they are just painfully slow, if they transfer at all. I'm using a Samsung Evo 128gb class 10 micro sd card. I've also tried a SanDisk 128gb Ultra class 10 card and it was really really slow. Is there some trick to speed this up? Am I using too beefy of a card? Any help is greatly appreciated!!

move the apps always has been slow even in class 10 sd cards, or at least thats what I remember.... but every other thing is just right

re: microsd card speed
slim011 said:
Hi All,
I was wondering if I'm doing something wrong or if it's just to be expected. I have an S7 edge that I'm attempting to move apps to the SD card and they are just painfully slow, if they transfer at all. I'm using a Samsung Evo 128gb class 10 micro sd card. I've also tried a SanDisk 128gb Ultra class 10 card and it was really really slow. Is there some trick to speed this up? Am I using too beefy of a card? Any help is greatly appreciated!!
Click to expand...
Click to collapse
The speed of the external microsd card fully depends on the quality and the specs of the microsd card
itself. That's why some microsd cards are slow or super slow.
I have two 128GB microsd cards, one of them is Sandisk Extreme $80 model and it reads and writes
almost 5 times faster than my other off-brand $28 128GB microsdcard. Both microsd cards are class 10.
I am not talking about speed benchmarks, I am talking about real life transfer speeds under heavy usage..
I also have a 64GB off-brand $17 microsd card which is just as slow as my 128GB $28 off-brand microsd.
All 3 of my microsdcards were purchased at Amazon.com
Good luck,
Have a great day!

I have same problem here I have : https://www.amazon.de/gp/product/B00V62XBQQ/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
And I go 13Mb/S Write and 60 MB/S Read
((((((

same here...
Just got my S7 and transferring speed from PC to external SD is extremely slow (I tried 64GB and 128GB sandisk class 10 which worked great on my last LG-G3...)
I also tried transferring from internal memory to external SD and it was still extremely slow..
Can it be HW problem (I can send it back for refund - but if it SW issue which can be fixed it would be a better)?