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wondering if anyone heard of this PQ1 sd mini card. Its a 2gb that has 10gb transfer spped. listed for 75.00$ Please post with any info
From previous reviews I think its a good one.
I even think its a SLC type mini sd (mostly Samsung flash chip inside), which is preferrable to MLC (mostly Toshiba flash chip inside):
Longer lifetime
Faster
Less power consumption
Better reliability in some devices (very often HTC phones, not pda phones, are mentioned here)
Main drawback of SLC is price: Its more expensive.
It is a pity most shops/eBayers dont mention whether its SLC / MLC or not.
I <think> the majority of fast cards is SLC but havent found any proof of that.
Sandisk seems to be MLC as is Kingston.
Only shop that does this reliable is Mobymemory.com They sell the 2GB SLC for 59 GBP.
I am not quite sure about this..
The Class 6 is 40% more expensive than class 2 ... But which one is better for my HD2 ?
Is class 6 will worth it ? any tech glitch if I use class 6 (maybe too fast ?)
Thanks
sectorlord said:
I am not quite sure about this..
The Class 6 is 40% more expensive than class 2 ... But which one is better for my HD2 ?
Is class 6 will worth it ? any tech glitch if I use class 6 (maybe too fast ?)
Thanks
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I dont think its woth it. but its a bit faster. if your budget allow you go for it
I think class 4 is the best of both worlds...
class 2 maybe too slow on saving something like a long video u shoot with your cam and i think that class 6 doesnt worth its money.. i have a 8gb class 4 and im really happy with it..
I have a Transcend 16GB Class6 and it is especially fast when use HD2 as "storage memory" or when insert the microSD directly in to my PC.
During the normal use probably a Class 4 is ample.
Regards
Class 2 is more than adequate. Your card is only as fast as the writer/reader hardware.
Food for thought: The majority of 16Gb MicroSD failures with the HD2 have been Class 4 (me included - I had a 2 month old Sandisk Class 4, 16Gb fail on me in this phone, bought a new Kingston Class 2, 16Gb and have not had a problem)
Obviously, yes. But I have no problem at all with my microSD Transcend 16GB Class6 on my Leo HD2.
All works fine and fast. And the hardware reader/writer on the HD2 is used at maximum of it's performance
Regards
Class 6 is too expensive. I got the Sandisk 16GB uSDHC Class2 and it's fine.
Xeon said:
Class 6 is too expensive. I got the Sandisk 16GB uSDHC Class2 and it's fine.
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same here, working perfect
Same with me!
I disagree with most guys in here. considering that you have just spend a hell lot of money on the HD2, I think that you might as well spend a few more bucks on a class 6 card, than a class 2. Especially considering that micro sd cards are so cheap today, I see no problem in that tiny bit of extra cost.
Class 6 value?
Of course it's worth it.
Copying, TomTom, photos, are all faster.
I don't believe Sandisk make a class 6 16g
It is important to note that using a class 6 rather than class 2 card will make absolutely no difference whatever to the performance of the phone - the phone itself is unable to read from or write to the card any faster than a class 2 card can easily cope with. The only time the class of the card makes a difference is if you take it out of the phone and plug it into a card-reader attached to a desktop PC.
Shasarak said:
It is important to note that using a class 6 rather than class 2 card will make absolutely no difference whatever to the performance of the phone - the phone itself is unable to read from or write to the card any faster than a class 2 card can easily cope with. The only time the class of the card makes a difference is if you take it out of the phone and plug it into a card-reader attached to a desktop PC.
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Are you sure about this? Got any source?
Stoferr said:
I disagree with most guys in here. considering that you have just spend a hell lot of money on the HD2, I think that you might as well spend a few more bucks on a class 6 card, than a class 2. Especially considering that micro sd cards are so cheap today, I see no problem in that tiny bit of extra cost.
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HD2 600 euros
+
Piel Frama case 80 euros
+
Sandisk 16GB SDHC 45 euros
------------------------------
725 euros approx. 1100 USD
That is already too much for a phone. ( not considering the additional 10% VAT in my country )...
Xeon said:
...That is already too much for a phone. (considering the additional 10% VAT in my country )...
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Vat at 10%? That's a luxury. We have to pay 17.5% in the UK (back up as from Jan 2010)!!
WB
wacky.banana said:
Vat at 10%? That's a luxury. We have to pay 17.5% in the UK (back up as from Jan 2010)!!
WB
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Off-topic but we have 10 times less annual income as average compared to Europe ( thank god it is not my case )
Shasarak said:
It is important to note that using a class 6 rather than class 2 card will make absolutely no difference whatever to the performance of the phone - the phone itself is unable to read from or write to the card any faster than a class 2 card can easily cope with. The only time the class of the card makes a difference is if you take it out of the phone and plug it into a card-reader attached to a desktop PC.
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Click to collapse
Surely this phone can read faster than that? Seems odd that a high spec phone like this can't read faster than a class 2 card.
wacky.banana said:
Vat at 10%? That's a luxury. We have to pay 17.5% in the UK (back up as from Jan 2010)!!
WB
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only 17.5%? lucky you
we have 25%... hungary sux.
could somebody test class-2-4-6 cards in hd2? I'm curious to know what should I buy.
The difference between class 2 and 4 is noticable to me on the HD2, so a class 6 would be nice, but so hard to find.
bzdemes said:
Surely this phone can read faster than that? Seems odd that a high spec phone like this can't read faster than a class 2 card.
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Well, you have to ask what the phone might be doing that would actually require data to be read or written that quickly. If you're watching a video, for example, the highest bit-rate you'll encounter will be 2 to 3 Megabits per second. Even the worst class 2 cards can be read at 3+ Megabytes per second. So you certainly won't get smoother video playback with a higher class of card. The camera doesn't take pictures quickly enough for the data transfer rate to the card to become a limiting factor. What might you be doing that needs more than class 2 speed? Given that you don't need more than class 2 speed, it would be a waste of money to enable the phone to read or write faster than that.
If you don't believe me, try running an SD card benchmark on your phone, and let us know the results.
The class ratings tend to be quite conservative, in fact, especially on name-brand cards. You can easily read at 8 or 9 MB/s off a "class 2" card from Sandisk (indeed, it may even outperform a no-name "class 6" card). That's more than enough speed for the phone.
I just fried my second transcend 32gb sd in just about a month. is there a problem with galaxy tab 2 with 32gb sd cards?:crying:
gokosan said:
I just fried my second transcend 32gb sd in just about a month. is there a problem with galaxy tab 2 with 32gb sd cards?:crying:
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NO, been using mine for 6 months. What else are you doing? Taking them in and out? Plugging into other devices?
Someone on here said they removed there sd card without unmounting it and fried theirs but thats all I've heard. Personally I run Sandisk 64GB for the MONTH I've had my tab 2 and it was in my SGP 4.0 for several months before, maybe you need a better brand.
These things are not indestructible. They are prone to static shock and physical shock.such as bending or impact.by fried , you mean it will no longer format Fat32?
I got my cheap 32GB micro-sd undetectable after 1 week.
the last thing I remembered is I was copying 1GB file to that SDCard and after it touch 70%-ish it just unmounted from my Tab and died.
lucky thing is the shop is near of my home and it accept RMA
Mine just died, i have'nt been mounting or unmounting the card it. it can't be detected from pc totally fried.
Amazon has great prices on SanDisk ultra class 10 cards save your self some trouble and buy a quality card.
Sent from my A500 using Tapatalk
gokosan said:
Mine just died, i have'nt been mounting or unmounting the card it. it can't be detected from pc totally fried.
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cruise350 said:
Amazon has great prices on SanDisk ultra class 10 cards save your self some trouble and buy a quality card.
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Click to collapse
Actually price or brand makes little difference since Samsung makes the majority of NAND flash memory chips SanDisk makes a small amount and the various vendors package and sell them. But if if makes you feel better buy the most expensive one
I strongly recommended using the SD Formatter instead of formatting utilities provided with operating systems that format various types of storage media. Using generic formatting utilities may result in less than optimal performance for your memory cards.
The approved format utility can correct some corruption problems that OS format cannot.
Get it here
https://www.sdcard.org/downloads/formatter_3/
DigitalMD said:
Actually price or brand makes little difference since Samsung holds all the patents and makes every flash memory chip in the world and the various vendors package and sell them. But if if makes you feel better buy the most expensive one
I strongly recommended using the SD Formatter instead of formatting utilities provided with operating systems that format various types of storage media. Using generic formatting utilities may result in less than optimal performance for your memory cards.
The approved format utility can correct some corruption problems that OS format cannot.
Get it here
https://www.sdcard.org/downloads/formatter_3/
Click to expand...
Click to collapse
NAND flash gets sold by manufacturers (there are more than just Samsung by the way) in "binned" stocks. They're binned by the quality and amount of dead blocks on the chips. Cheap SD cards are usually from lesser quality bins, though not always. Transcend is known for using quality components though, it's unusual the OP would be having problems with it. Perhaps there's a problem with your tablet, or another device in which you're using the cards.
In my experience Kingston and Sandisk have the lowest MBTF (mean-time between failures), and that's from observing return rates / complaints where I work, and in personal use. Also keep in mind cheaper SDXC cards are almost always poorly binned, high-density NAND is a lot more expensive than low-density.
DarkStar851 said:
NAND flash gets sold by manufacturers (there are more than just Samsung by the way) in "binned" stocks. They're binned by the quality and amount of dead blocks on the chips. Cheap SD cards are usually from lesser quality bins, though not always. Transcend is known for using quality components though, it's unusual the OP would be having problems with it. Perhaps there's a problem with your tablet, or another device in which you're using the cards.
In my experience Kingston and Sandisk have the lowest MBTF (mean-time between failures), and that's from observing return rates / complaints where I work, and in personal use. Also keep in mind cheaper SDXC cards are almost always poorly binned, high-density NAND is a lot more expensive than low-density.
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Click to collapse
Nahhhhh.
I work with a lab that buys raw Samsung chips for high speed data drives and they never offer to sell us lower quality chips at a reduced price. Everything is priced by storage size and speed. and of course the quantity you purchase. SanDisk is not competitive in the raw market. Transcend buys Samsung and packages it. Packaging is somewhat important, flex and impact can destroy the chips and connectors.
Hello,
It seems NST can be fussy with MicroSD cards so a thread to determine requirements would be fantastic:
1) MicroSD, MicroSDHC and MicroSDXC - Which are supported? Which are recommended?
2) Capacity - After rooting what reasonable size card is required (basic app installation and an 'average' library)?
3) Class rating. You might think bigger is better but I've read reports that class 10 are no good. Similarly, below what class rating is the performance impaired?
For my own part, I am interested so that I either use a card I have or buy one as necessary. I have a plain old 2GB MicroSD (not HC or XC, and therefore without class rating). I'd like to use this to save a bit of cash (and because I've got it here ready and waiting, otherwise unused) however I'd like to be sure that it will operate acceptably both in terms of capacity and performance.
Thank you!
I used my NST for a short while with an old 2GB card, and it worked. I upgraded to a 32GB SanDisk Ultra Class 10/UHS-I SDHC, because I use Aardict with offline copies of Wikipedia etc. (~16GB or so) and it wasn't really economic to buy anything smaller or slower new. However, I've run into problems with the SD card disappearing until after a reboot (even with latuk's kernel with the Class 10 timeout patch that I pointed out to him), and when it comes back, it sometimes comes back with a corrupt filesystem (presumably as a result of the unexpected logical disconnection). I'm putting this down to the Class 10 speed of the card, and I've ordered a replacement Samsung 32GB Class 6 SDHC which I expect to be able to test soon.
cowbutt said:
I used my NST for a short while with an old 2GB card, and it worked. I upgraded to a 32GB SanDisk Ultra Class 10/UHS-I SDHC, because I use Aardict with offline copies of Wikipedia etc. (~16GB or so) and it wasn't really economic to buy anything smaller or slower new. However, I've run into problems with the SD card disappearing until after a reboot (even with latuk's kernel with the Class 10 timeout patch that I pointed out to him), and when it comes back, it sometimes comes back with a corrupt filesystem (presumably as a result of the unexpected logical disconnection). I'm putting this down to the Class 10 speed of the card, and I've ordered a replacement Samsung 32GB Class 6 SDHC which I expect to be able to test soon.
Click to expand...
Click to collapse
Thank you for the reply.
So;
1) Is 2GB enough for 'normal' usage - Stock apart from i) rooting, ii) Kindle App (and dictionary), iii) Launcher 8, iv) small collection of Kindle books (for future proof, let's say <100) and v) misc small apps (e.g., BBC News, BBC Weather)?
2) If Class 10 is to be avoided - Will there be any 'real life' speed difference between a SD and a Class 6 SDHC?
Thanks again!
Apps live in /data which is ~800MB of the Nook's built-in memory. Android 2.1 has no 'move to SD' option, so apps will only use the SD card for caches and offline data (e.g. like Aardict). epubs are usually a few hundred KB, so even if you only have 1GB free, that's still ~3500.
I don't think IO speeds are much of a factor when reading books on a Nook; the CPU and eInk display are probably far more relevant.
SD Card for me like most holds books which are tiny. I do use it to store titanium backup path. I have a few BnW Mangas on there. 2GB should be more than fine. If your buying a card then get a 8GB / 16GB / 32GB class 6 whatever is cheapest GB per £ or $
Class speeds have greatest affect on the write speed of the card. For my other less fussy devices I tend to use samsung class 10 32GB cards which are quite cheap at around £20. They seem just as reliable (or I should say as unreliable) as more expensive ones which have died on me.
I wish I had a cache of little crappy sdcards as I constant have to put disk images on them to flash an android device and it usually involved me backing up one of data sdcards and retask it.
Thanks for the help - I think I'll give the 2GB a try. I can always replace it if it is not up to task and it is not doing anything else, so...
For books (only use I'll have for it) it would seem capacity is a non-issue. As for speed - Well, it's not going to be up to Class 6 standard but I have my doubts that I'd even be able to tell... Especially after a numerous reports that in certain cases (small files) some higher class cards are actually outperformed by lower class cards. And, hey, after getting the guy so cheap the idea of another £20 on an SD card is not ideal. I'll report back if I encounter any problems. Thanks again!
LavaChild0809 said:
Thanks for the help - I think I'll give the 2GB a try. I can always replace it if it is not up to task and it is not doing anything else, so...
For books (only use I'll have for it) it would seem capacity is a non-issue. As for speed - Well, it's not going to be up to Class 6 standard but I have my doubts that I'd even be able to tell... Especially after a numerous reports that in certain cases (small files) some higher class cards are actually outperformed by lower class cards. And, hey, after getting the guy so cheap the idea of another £20 on an SD card is not ideal. I'll report back if I encounter any problems. Thanks again!
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Write speed is not issue when using as how often do you write the books etc to sdcard. I only mention it for if your spending money.
Trouble I small or low speed sdcards are still usually around £5 min so its does not make financial sense to buy them. Also beware buying cards on ebay or similar sites alot of fakes. If there a few pound how cares but if your spending more.
Got an old phone in drawer? Might have a 1GB card in it etc.
My SGS7-Edge arrives tomorrow; it's time to look for a MicroSD!
In the past SGSx phones I've had issues from time to time with MicroSDs where the phone got heated and at times the MicroSD became unreadable (even on a desktop). I had to change 2-3 MicroSDs.
Any recommendation for a high performance / quality and reliability card?
Thanks.
gilbnx said:
My SGS7-Edge arrives tomorrow; it's time to look for a MicroSD!
In the past SGSx phones I've had issues from time to time with MicroSDs where the phone got heated and at times the MicroSD became unreadable (even on a desktop). I had to change 2-3 MicroSDs.
Any recommendation for a high performance / quality and reliability card?
Thanks.
Click to expand...
Click to collapse
I've never had issues with Samsung or SanDisk. I don't think I'd trust some of these off brands.
Samsung pro+ has fastest read write speeds
Long discussion here in the accessories sub-forum: http://forum.xda-developers.com/s7-edge/accessories/suggestions-microsd-t3321569