Should I invest in a class 6 and apps2sd? - Hero CDMA Accessories

So I am thinking about buying a Samsung micro SDHC 8 gig class 6 card and doing apps2sd and moving the dalvik and etc to the sd card. For those who have done this how much improvement have you seen?
Also should I go ahead and drop the 70 dollars for a Transcend 16 gig class 6, or would an 8 gig class 6 be plenty?
I don't really plan on keeping tons of crap on my phone so I think I will just go with the 8 for 20 bucks but is it even worth the money in terms of performance increase?
Also probably going to buy that 2 pack of spare batteries with charger from Hong Kong as its only 12 bucks but whatever.
Thanks.

i just got a 8 gig c6 card and im glad i did the speed boost is great

Related

Kaiser Memory Card capacity

Some people say Kaiser can manage up to 8GB and some say it can manage
up to 16GB all I have is 4GB and its more then enough. But a friend wants to send me one and asked me what is would prefer. I would go for 16GB but I don't know if I can use it. I have a AT&T Tilt.
Thank You.
Hi and welcome around,
searching a little bit around may have answered your question .
The Kaiser definitely supports µSDHC up to 16 GB. As soon as 32 GB comes up, it will also support it.
Got a 16Gb in mine. Runs great. Just got to find stuff to fill it now!
What 16 GB are you using?
Edris said:
Some people say Kaiser can manage up to 8GB and some say it can manage
up to 16GB all I have is 4GB and its more then enough. But a friend wants to send me one and asked me what is would prefer. I would go for 16GB but I don't know if I can use it. I have a AT&T Tilt.
Thank You.
Click to expand...
Click to collapse
Thanks Guys.
SaltyDawg said:
What 16 GB are you using?
Click to expand...
Click to collapse
I also have a 16 gb micro sdhc card - got it a couple of weeks ago. It's a sandisk, and works great. I've had no problem whatsoever getting more than half filled already!
Edris said:
Some people say Kaiser can manage up to 8GB and some say it can manage
up to 16GB all I have is 4GB and its more then enough. But a friend wants to send me one and asked me what is would prefer. I would go for 16GB but I don't know if I can use it. I have a AT&T Tilt.
Thank You.
Click to expand...
Click to collapse
I am also using a 16GB sandisk. It works great and have no problems. The only thing I will say, as with any flash memory, is that mine is just below 15GB. I personally think that the labeled amount should be the minimum amount available. Sorry for that... go for the 16GB!
Where are you guys buying these 16GB cards? I can't even find them on any of the major retailers' sites. I'm curious to see how much they run. 16Gb used to be a pipe dream to me. heck, the 4 gig I'm currently using used to be such a pipe dream. I remember when I paid $350 for a 1 gig SD card...
16 gigs would be lovely though. I could load up on music.
SaltyDawg said:
Where are you guys buying these 16GB cards? I can't even find them on any of the major retailers' sites. I'm curious to see how much they run. 16Gb used to be a pipe dream to me. heck, the 4 gig I'm currently using used to be such a pipe dream. I remember when I paid $350 for a 1 gig SD card...
16 gigs would be lovely though. I could load up on music.
Click to expand...
Click to collapse
Here are 2 threads dicussing where to find them: here and here.
I got my 16 gb sandisk card on ebay, for $52.00 delivered. I've bought a number of accessories for my tilt off ebay. It's a good place to buy things, as long as you buy from a seller with a really good feedback rating.
16 GB SanDisk Best Buy $100.00
danfr said:
16 GB SanDisk Best Buy $100.00
Click to expand...
Click to collapse
You can get far better prices than that like this http://www.amazon.com/SanDisk-16GB-...2?ie=UTF8&s=electronics&qid=1230674794&sr=8-2
16GB MicroSDHC Class 6 card (DRATS!) - ONLY $24.99 (s&h FREE)
The best bang for your buck right now for a Class 6 MicroSDHC card, is the 16GB made by ADATA - from Newegg.com:
http://www.newegg.com/Product/Product.aspx?Item=N82E16820211300
- - -
What SPEED is the Tilt able to handle for the MicroSDHC cards? There are Class 2, 4, and 6 - Class 6 being the fastest. However, if the Tilt is only able to transfer up to or slightly below the speed of a Class 4 card, then buying a Class 6 rather than a Class 4 would be a total waste of money for the higher speed -
- - -
I was going to post something about the ADATA 8GB card I actually have, because I thought it was a great buy at 18.99, but when I checked their web site today, it turns out since I bought mine only about 2 weeks ago, they posted the above Class 6 speed card with 16GB!
I would make a fuss and return my old one, the only thing is, I don't even have any way of filling up the 8GB card - so I may as well wait until the 32Gb cards come out - also anothjer reason is my Tilt is getting to bee a little long in the tooth with scratches, etc. - so by the time the 32GB cards come down in price there may be other models coming onto the market I want to buy instead of the current phone I have now...
KruseLudsMobile said:
The best bang for your buck right now for a Class 6 MicroSDHC card, is the 16GB made by ADATA - from Newegg.com:
http://www.newegg.com/Product/Product.aspx?Item=N82E16820211300
- - -
What SPEED is the Tilt able to handle for the MicroSDHC cards? There are Class 2, 4, and 6 - Class 6 being the fastest. However, if the Tilt is only able to transfer up to or slightly below the speed of a Class 4 card, then buying a Class 6 rather than a Class 4 would be a total waste of money for the higher speed -
- - -
I was going to post something about the ADATA 8GB card I actually have, because I thought it was a great buy at 18.99, but when I checked their web site today, it turns out since I bought mine only about 2 weeks ago, they posted the above Class 6 speed card with 16GB!
I would make a fuss and return my old one, the only thing is, I don't even have any way of filling up the 8GB card - so I may as well wait until the 32Gb cards come out - also anothjer reason is my Tilt is getting to bee a little long in the tooth with scratches, etc. - so by the time the 32GB cards come down in price there may be other models coming onto the market I want to buy instead of the current phone I have now...
Click to expand...
Click to collapse
There will no doubt be better phones on the market in the near future (HTC's leaked road map has some nice looking phones due out this year, and that Nvidia Tegra system looks awesome). But, the beauty of the situation here is, pretty much any phone worth buying in the future should have a micro SD slot. It kind of sucked buying SD cards with Mini SD on the horizon, and then buying Mini SD cards with Micro SD on the horizon. But Micro SD seems to have settled in as the standard, so your 16 gig card will probably work on your next device.
According to A-Data's website, they don't make a 16gb microsd card
The link above takes you to a 16gb flash card, but it's not a microsd card. The cheapest ones I've seen are 50+ on ebay, probably fakes, but I have an 8gb, probably fake that I go on ebay, and it works perfectly.
I have a 16 gb micro sd card that I bought on ebay, and it works great. I've had no problems whatsoever with it, and I've really loaded it up! I paid $52.00 for it (shipping included).
It Supports up to 32gb
Correction 16GB MicrSDHC not yet available?
My first post tothis thread was wrong, that was a 16GB sd card, not a micro sdhc card. All I can find for highest capacity (class 6) is an 8GB card which I am now using (and itis fast):
http://www.newegg.com/Product/Product.aspx?Item=N82E16820211341
And it's only $15.49!
It appears that the class 4 and class 6 make little difference in speed tests,maybe the tilt read/write throughput gets maxed out at the class 4 speed??? Any thoughts anyone?

32GB microsd cards coming soon?

Since I've bought my Omnia II I've been looking forward to getting a 32GB microsd card which the device claims to support. Only problem is that they don't exist yet and I can't find any information on when I can expect them to be in the market, or how much i'll be expected to shell out for one.
Anyone else holding out for a 32GB card? 16GB is a lot, but not nearly enough to hold all my music, let alone having room left for taking photo's/videos.
hopefully in a few months ,according to this http://www.engadget.com/2010/01/13/samsung-announces-64gb-movinand-flash-32gb-microsd-card/
I wouldn't hold out for anything...
Matt174e said:
Since I've bought my Omnia II I've been looking forward to getting a 32GB microsd card which the device claims to support. Only problem is that they don't exist yet and I can't find any information on when I can expect them to be in the market, or how much i'll be expected to shell out for one.
Anyone else holding out for a 32GB card? 16GB is a lot, but not nearly enough to hold all my music, let alone having room left for taking photo's/videos.
Click to expand...
Click to collapse
32GB microSDHC has been "coming soon" since 2007...and we're STILL waiting.
http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=180478266772&ssPageName=ADME:X:AAQ:AU:1123
SanDisk 32GB class II microSD, anyone tried?
technillion said:
32GB microSDHC has been "coming soon" since 2007...and we're STILL waiting.
Click to expand...
Click to collapse
The new crop of microSD cards are getting ridiculous storage capacities for something this small - step back 16GB microSD cards, the 32GB cards are coming to town. SanDisk just might be the first to release microSD cards of this capacity.
By the way, this is the Swan song of microSDHC - they are capped at 32GB capacity. Coming to replace them will be the microSDXC variety (XC stands for "extended capacity").
Getting back on topic, SanDisk will release the world's first 32GB microSD cards next month and their price is expected to be 200 US dollars (150 euro), which obviously includes he early adopter's fee and the bragging rights that come with it.
We're joking of course, but 16GB microSD cards from SanDisk can be had for as low as 40 bucks - buying a phone with a hot-swappable card slot sounds like a good idea, doesn't it?
But if you absolutely must have one, you'd need 200 dollars by next month when these cards start shipping.
Source 200$?? LOL,,LET OBAMA PAY FOR EVERYONE OF THEM
SanDisk Launches 32GB MicroSDHC Card
Nazar78 said:
http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=180478266772&ssPageName=ADME:X:AAQ:AU:1123
SanDisk 32GB class II microSD, anyone tried?
Click to expand...
Click to collapse
i use "SanDisk 16GB class II microSD" very fast, no problem.
Hai everybody, i am a new member to forums, so i am intereseted
and want to gain knowledge on this topics..........................thank u
I'm using SunDisc 32 Gb class 2 without any problem. It is not very good for watching films from it because 2 class (slow for film streaming with high bitrate), but for data, photo and music it is very nice. I copy film from card in to internal (8 Gb) memory and watch it.
32GB micro SD class 10, the best!
be carefull about sd
supersaiyanx said:
32GB micro SD class 10, the best!
Click to expand...
Click to collapse
Not all micro SD class 10 have the same speed my friend.
class 10 card means that meets the minimum requirements of class 10 of SD Card Association protype, which is 10 MB/second
in fact some quality class 6 cards may give you speed more than 10 MB/s, while cheap - low quality class 10 will give you just 10 MB/s or even worse theoretically 10MB/s under perfect weather ect condintions.....
par example samsung sd class 10 plus gives you up to these
• Speed Rating Speed (read) : 24MB/s
• Speed (write) : 21MB/s
which i think worth the few extra usd.
same brand's class 6 cards give you
Speed (Read) 17MB / sec.
Speed (Write) 12 ~ 13MB / sec.
which is much faster than low quality class 10
So you should rethink about class 10 now
Yeah i agree.
My Class 6 Sandisk transfers at 10MB/s beating my Class 6 32GB Gskill transferring at 6 MB/s max.
Sent from my GT-I8160 using Tapatalk 2

16GB MicroSD - how much will the Class affect performance?

Evening XDA!
So... It's time I upgraded my HD2's capacity. 16GB MicroSD's are now reasonably (ish! @ under £30) priced so that's what I want to go for. Most are Class 2 but I've seen a few Class 6s knocking about too.
Is the speed difference, in reality, a massive issue? Stuff I do that perhaps might require speed:
Watching XviDs in TCPMP
Taking photos
TomTom/iGO
Music
Will I notice much of a difference between the two classes of cards?
Any feedback is much appreciated! Thanks!
u just can compare my
kingston sdhc 8gb class 6
to
sandisk sdhc 16gb class 2
i could figure out a speed advantage of the class 6 about 0.8 mb per sec
my 16gb class 2 got 3.8Mb/sec
my 8 gb class 6 got 4.5Mb/sec
copiing the same file....
if somebody got different rates pls post them there.
i never had any problem with the lower data transfer rate of my 16gb sdhc, smooth vids, instant starting apps, nearly same "short" install time for apps
Ps.: i was copiing a 7xx Mb video file to my HD2 in HDD mode
I have a class 2 16gb in my HD2 - I've had no problems with the speed.
watching AVI files with coreplayer is always smooth, tomtom loads up in about 3-4 seconds.
Remember the read speed is a lot higher than the write speed.
Generally you are going to be OK with a lower class. There are however certain things that a lower class memory card will limit, like HD video playback or a high speed game installed on the card (I think Asphalt is a good example of this).
You have to decide what your going to be using the card for and adjust how much you are expecting to spend accordingly.
Be aware that if you are going for a reputable brand then buy from a reputable site. Buying a Kingston or Sandisk from Ebay for a knock down price may mean you getting a cheap knock off. Tread carefully, and give this article a good read, give you a better idea of how easy it is to buy a knock-off card.
http://www.bunniestudios.com/blog/?p=918
Hope this helps
I have been wondering the same because I have been debating on buying the new Kingston Class 10 16GB MicroSDHC card but if the HD2 can't fully utilize the speed, I will probably splurge for the SanDisk 32GB MicroSDHC card and get rid of a few of my 16GB MicroSDHC cards. It is kinda a hassle to carry around a card full of movies, card full of music, and a card full of pictures so I would love to get a 32GB when the price comes down a little more.
Anyone know any reputable sites??? I'm in Australia... So hard to find one to ship Australia and cheap!
I'm after the Kingston 16GB Class 10 card!!!
Thanks a lot for the tip guys. I'll definitely have to have a think about whether I'll need the extra speed, of the top off my head I don't think so but there's a good chance I'll be slapping a few PSX ISO's on the SD card in the future which I guess might be a factor!
@above - unsure of Aus sites, but stay away from ebay as another poster said. 99% of stuff from China (and a lot of the stuff local too) is cheap, low capacity memory hacked to appear to be 16GB and often enough they even include viruses on the damn things too!
UK buyers - Play.com are doing Class2 16GB's for £28 delivered (+Quidco cashback, www.quidco.com)
Jackuuuuu said:
Anyone know any reputable sites??? I'm in Australia... So hard to find one to ship Australia and cheap!
I'm after the Kingston 16GB Class 10 card!!!
Click to expand...
Click to collapse
the only place in oz i could find a 16gb card for my hd2 was vodafone. it wasn't cheap ($89aud) but i've not had any issues with it. it says it's a class 2. i'm sure i read here on the forum that the class really isn't an issue with the hd2 anyway.
Jackuuuuu said:
Anyone know any reputable sites??? I'm in Australia... So hard to find one to ship Australia and cheap!
I'm after the Kingston 16GB Class 10 card!!!
Click to expand...
Click to collapse
Umart sell the Kingston 16GB Class 2 Micro SD for $55. Unfortunately it's the only one they sell (no class 6 available on the website). Have purchased several times from them with no issues.
I did not even know there was a difference in classes. Glad I read this thread.
Class 10 SD cards
Anything over class 2 (which means it can read at a minimum or 2Mb sec) will be a waste of money on a mobile phone. Class 4 and up to the latest class 10, are designed for the speed needed on high end digital cameras that shoot HD videos.
Save your money, buy a good quality, genuine class 2 card, you will not see any difference on an HD2 with a class 10 card in it.
Some users reported that after changing their bundled class 2 card with class 6, music, album etc are up to 3 times faster in loading.
I just ordered a class 6 card to change it with mine class 2, will report about it.
Class
Im using the 16 gb kingston class 2 and it works like a sharm... if you are really picky you can go with a higher class card but be prepared to add some extra cash for a tiny bit of quicker preformance
Just so you will understand how the cards are built there is not much diference amongst the classes. This cards all have 16 Gb space whitch cover the tiny sd card. the diference is that on the higher class cards, the bytes will be shared out in a much more constructive way so it makes it easyer for the phone to read the data. we talk up to 2 seconds faster from the lowest class card to the highest class card. I belive thats from class 2 to class 6.
Good luck with your choice

MicroSDHC 32GB C2 or 16GB C10?

I was thinking about upgrading from my current Sandisk 16GB c2. As many of you know Sandisk is out with there 32GB c2 MicroSDHC which is selling for $100 by Verizon. But if you look on ebay you can also find other 32gb c2/c4 MicroSDHC from TopRAM and Centon. Now I personally have never heard any of these company so I am very spectacle.
Now my question is which would you go with 32GB c2 or 16GB class c6/c10? To me its storage vs transfer rate.
1) Sandisk 32GB MicroSDHC Class 2 = $100
2) Kingston 16GB MicroSDHC Class 10 = $135
Clearly you should really been far 16GB storage even as decided to use even go want to do look more like 32GB transfer rate?
FYI 16gb class 10 Kingston is $98.99 over @ newegg and if you look hard enough u can find it around $79
I am not sure what you are saying but some claims that the Sandisk 32GB C2 they get around 5mb/s write. So IDK ATM as Kingston 32GB Class 6 is selling for $700 on ebay WTF? Last time I check they didn't even have 32GB class 2, could be fake who knows.
sti-06 said:
FYI 16gb class 10 Kingston is $98.99 over @ newegg and if you look hard enough u can find it around $79
Click to expand...
Click to collapse
I am aware of that as they been had it for sometimes now but I was more leading to 32GB but who knows if I do decide to go with 16GB I might go with C10 from Kingston.
But has anyone tried TopRAM 32GB Class 4 or Centon 32GB Class 4? If so is it thoughly tested via R/W IOPs and fully chunking the card.
HyperNode said:
I am aware of that as they been had it for sometimes now but I was more leading to 32GB but who knows if I do decide to go with 16GB I might go with C10 from Kingston.
But has anyone tried TopRAM 32GB Class 4 or Centon 32GB Class 4? If so is it thoughly tested via R/W IOPs and fully chunking the card.
Click to expand...
Click to collapse
You cant go wrong with ScanDisk
its a safe bet
ilordvader could you test the R/W speed of your card and post back.
So after searching and reading many threads in various forums I came to the conclusion that even class 6 is an overkill so class 10 is out of the question other than bragging rights.
Now has anyone used Transcend or A-Data? they seem to be selling at Newegg so they can't be questionable unknown like TopRAM or Centon which I never even heard of until I was searching for MicroSDHC.
Anyone recommend any 16GB class 6 cards? I am still unsure on not ordering SanDisk 32GB Class 2 as storage is high but the speed is low. As majority of user who running Android port do recommend getting anything over class 2.
Extreme candidates:
Sandisk 32GB MicroSDHC Class 2 - $100 < Storage
Kingston 16GB MicroSDHC Class 10 - $135 < Speed
Are these the only reputable 16GB Class 6 candidates?
A-Data 16GB Class 6 - $53.99
Transcend 16GB Class 6 - $62.99
Lexar 16GB Class 6 - $69.99 < Questionable; produce inferior products
Has anyone heard of these company before?
Centon 16GB Class 6 - $58.99 < Questionable; but listed under Newegg
3C_Pro 16GB Class 6 - $44.99
TOPRAM 16GB Class 6 - $44.99
Team 16GB Class 6 - $44.99
i bought this. Komputerbay 32GB MicroSD SDHC Microsdhc Class 6. £88, which was preety steep.
i get read speads of around 3.5 mb/s and write speeds of 4.5 mb/s, i cant find my 2 speed to compare but it does seem quicker.
though the web site gaurantees minimum 6 mb/s write speeds.
it was amazon so i though it would be ok.
edit.
just tested it again i am getting 6 mb/s read speeds now.
johnwalk did you thoroughly test the card? by formatting and filling it up fully with chunks? if you can confirm its overall performance then I might also order it. Can't wait for other vendors to make it as I need it now. On class 2 card it takes like 30min to just move around 4.5gb now that's way to long for me as I'm always on the go, but thanks for your reply as ill look in to that company.
I don't want to spoil anything, but my HD2 just destroyed my 8GB Sandisk card. 'Luckily' this was not a $100 card, but still.......
Are you shure you want to spent that much, or did you never have your previous card(s) being destroyed?
Wish you goodluck anyway
i just formated it normally the filled it up with music and video still got two gigs left im like a dog with two tails i dont know what to listen to first lol. but the tests i done with it was when it was 28 gigs full only had it two weeks and at first it was slow, especially when you went into the music player it took a few seconds to update but hey a lot of files to browse but its been ok the past few days, but im now at the stage where i dont plug it into my computer anyway i just access my pc and transfer albums by wifi takes about a minute an album, any video usually gets streamed anyway, but wanted a bigger selection when i go on holiday next month.
def recomend this card thougth the first few days i thought i should have gone for the class two, im now happy with it now it all working properly.
I'm at work now and in an hour when I go home ill thoroughly look in to this card and post my finding. As I never even have heard of the company and if I like it ill post feedback here so others can buy it with confidence.
Far as flr goes how did HD2 destroy your card? corrupted the data? or the flash device is unreadable fully? BTW I never needed an flash card before as this is my first smartphone. Also I was welling to spend $750 few months before HD2 was officially deployed in USA. So I'm not worried about $100.
PS: Also have an eye on HD3 as the spec is 90% accurate from my guess after looking at the specs. So let's see what happens as I don't want a device which may have 2 versions, hence EU-Leo512 and EU-Leo1024.
off topic but im seriously looking into the new batch of android tablets which are just coming out now, maybe 7" or 10"
HyperNode said:
I'm at work now and in an hour when I go home ill thoroughly look in to this card and post my finding. As I never even have heard of the company and if I like it ill post feedback here so others can buy it with confidence.
Far as flr goes how did HD2 destroy your card? corrupted the data? or the flash device is unreadable fully? BTW I never needed an flash card before as this is my first smartphone. Also I was welling to spend $750 few months before HD2 was officially deployed in USA. So I'm not worried about $100.
PS: Also have an eye on HD3 as the spec is 90% accurate from my guess after looking at the specs. So let's see what happens as I don't want a device which may have 2 versions, hence EU-Leo512 and EU-Leo1024.
Click to expand...
Click to collapse
Hope the HD3 is for Att this time
I've got up to 14.7 MB/sec on my 16GB Kingston Class 10.. and my phone works soo smooth now!
Compared android sliding of homepage on my 2GB Class 2 card and my 16GB Class 10 card, and there is some lag with the 2GB card, and none at all (100% realtime) with the 16GB card..
So, personally I'd say; save some exrtra bucks and go for the 16GB Class 10 Kingston one!
@HyperNode
There are several threads here regarding SD cards being destroyed, or whatever description is given to it.
From one moment to another you get the message that you're card has to be formatted. If you accept it, it says something like (only) 30 MB being available, which doesn't get formatted. Your card can no longer be seen by your HD2, nor by your PC or any other cardreader (afaik)
I´ve never had this problem before. It looks like a specific HD2 problem.
Either with or without a combination to a specific brand or card.
I'm very curious about your experiences.
Please keep us updated.
Thanks and goodluck!
Same here. Mythen hd 2 just destroyed my SD card des SYstem ago
It happened already bevor, Thatcher i couldn't See Thema data anymore , but nie i Cantel even Format it anymore
Sent from my HTC Desire using Tapatalk

[Q] 16 GB class 10 card...

is the nexus capable of handling a class 10 sdhc? or should i just stick with a class 4/6 card?
Yes, but you're not really going to gain much by using a class 10.
i figured that but will it help with usb2.0 transfers?
i have one
its faster than my class 2 one, thats for SURE.
now, i never had a class 4 or class 6 to compare
dang. anybody? i want to get a 16 gig card. can't find any info to the performance of a class 10 card on nexus one. i don't want anything less than 6 though which is still about half the 90+ dollars a class 10 would cost.
pukemon said:
dang. anybody? i want to get a 16 gig card. can't find any info to the performance of a class 10 card on nexus one. i don't want anything less than 6 though which is still about half the 90+ dollars a class 10 would cost.
Click to expand...
Click to collapse
I use a class 6 and it's fine. If you want fairly cheap sd cards, go to microcenter. They have their own brand and they're much cheaper than the name brands. I've had mine for over 2 years and never had a glitch.
a little info for the general user...
well, after doing some research here and there, it seems there is little reason to get beyond a class 6 card for the nexus. there is very little chance you will even reach 6 through an usb cable. it seems the most common speeds are 1-3 MB's a second. i generally get a little over 2 MB's and sometimes up to 3. the only reason to get a class 10 card is if you manually take out your card and slap it in a reader and directly transfers large files such as mp3's and video, especially if you do it often.
as far as this SDHC card crap goes... THEY ARE NEVER as fast as they say.
I bought a class 4 card and it said on the dealership that it's 4MB/s transfer. Put it in the phone it went 1 MB/s.. WTF.. put it in a card reader... 1.5 MB/s.. returned it and demanded money back.
Then I got a class 6 from transcend. It's marked as 10 MB/s?! .. going on 4 MB/s sometimes 5MB/s in the phone. haven't tried it in the card reader though.
so my advice to you.. buy and return them until you are satisfied

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