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Sandisk - 64Gb Mobile Ultra Microsdxc Class 6 Memory Card With Sd Adapter - Retail Packaging


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ASINB0081EAK34
Best Sellers Rank #4,025 in Grocery & Gourmet Food (See top 100)
Shipping Weight907 g
Date First AvailableMarch 20 2012
  
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CHOKING HAZARD -- Small parts. Not for children under 3 yrs.

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Product Description

Ultra Storage With the development of smart phones, your phone is often used for much more than just making calls or sending the odd text. It now functions almost as a handheld computer, being capable of capturing images, videos, and providing access to music files and downloaded apps and games. SanDisk Mobile Ultra microSDHC memory cards provide an easy to use, high performance storage solution for all your data files so you don't need to worry about running out of internal memory. Ultra Speed Class 6 performance rating ensures that the data stored on your card can be recorded, played back and transferred quickly and easily, granting you full access to all your images, videos and other files with little delay! Ultra Compatibility Compatible not just with mobile phones, but with any device with a microSDXC slot, this card can be used with an array of different modern devices including MP3 players and tablet PCs as a shared file storage and transfer medium. Ultra Adaptability With the included SD adapter, compatibility doesn't just stop there. Simply insert your card into the corresponding slot on the adapter and then plug directly into any SD slot for maximum compatibility across both microSDXC and SDXC devices. Perfect for transferring your favourite images, music or video onto your PC without having to hunt around for that pesky connection cable! Ultra Reliability Backed by a lifetime limited guarantee, you can have confidence in the quality of your card and its ability to withstand some of life's toughest conditions to continue to provide you with a long-lasting, reliable memory storage solution throughout its own lifetime and that of your microSDHC compatible device.   Please check compatibility with your device or its manufacturer. Your device needs to be SDXC Compliant for this card to work.

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1 of 1 people found the following review helpful By K.A. TOP 100 REVIEWER on June 16 2012
Verified Purchase
I am not sure what Sandisk's problem with compatibility of their product is, this product is rated only for microSDXC-compatible devices. I can't think of a single such device right now. I read that this memory card works on the Samsung Galaxy Note, and decided to risk buying it for my Samsung Galaxy S2 SGH-T989D (TELUS version of the T-Mobile Samsung Galaxy S2 - this is the exact same phone as far as hardware is concerned). Guess what: for the first time in 5 years, I can carry my entire music collection with me at all times! Not only did it work, it is recognized at full capacity. There are two caveats:

1) Formatting this memory card as FAT32 appears to come with some performance penalty: it took more than 3 hours to copy all my music into it. Even adjusted for size, this is a few times slower than what I was getting out of my trusty 32GB memory card. Early adopters beware.
2) Make sure you format this card with your cell phone. It comes formatted with a file system not currently supported by gadgets.

If you just want someplace you can stuff all your music for your phone or media player to play, this would be it. If you want performance, then you are better off with two 32GB cards. I can't tell you if having a microSDXC-rated device makes a difference in performance. Maybe, maybe not.
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By Dan Marcelino on Feb. 22 2013
Verified Purchase
Very fast and vast ;] great buy!! Would definitely recommend to others when looking for a great quality sd card.
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Most Helpful Customer Reviews on Amazon.com (beta)

Amazon.com: 17,920 reviews
2,086 of 2,166 people found the following review helpful
UPDATED - Great w/ Galaxy S4 & Galaxy Tab 4 10.1 - No Complaints Here!!! May 1 2013
By Hyoun Kim - Published on Amazon.com
Product Packaging: Standard PackagingSize Name: 64GB Verified Purchase
[[ UPDATE - 6/19/2014 ]]
So my lovely wife bought me a Samsung Galaxy Tab 4 for Father's Day and I've been loving it ever since. Just as other with Samsung products, the Galaxy Tab 4 has the ability to add a microSD card to expand the memory on the device. Since it's been over a year, I decided to do some more research to see if SanDisk offered anything new. As of 6/19/2014, their product lineup for microSD cards from worst to best (performance-wise) are the as follows:
SanDisk
SanDisk Ultra
SanDisk Ultra PLUS
SanDisk Extreme
SanDisk Extreme PLUS
SanDisk Extreme PRO

Now, the difference between all of these cards are simply the speed in which you can read/write data to the card. Yes, the published rating of most all these cards (except the SanDisk regular) are Class 10/UHS-I but that's just a rating... Actual real world performance does get better with each model, but with faster cards come more expensive prices. Since Amazon doesn't carry the Ultra PLUS model of microSD card, I had to do direct comparisons between the SanDisk Ultra ($34.27), Extreme ($57.95), and Extreme PLUS ($67.95).

As mentioned in my earlier review, I purchased the SanDisk Ultra for my Galaxy S4. My question was, did I want to pay over $20 more for a card that is faster than the one I already owned? Or I could pay almost double to get SanDisk's 2nd-most fastest microSD card.

The Ultra works perfectly fine for my style of usage (storing/capturing pictures & HD video and movie playback) on my phone. So in the end, I ended up just buying another SanDisk Ultra 64GB card. I use my cell phone *more* than I do my tablet and if the card is good enough for my phone, it's good enough for my tablet. I don't own a 4K HD camera or anything like that, so I honestly didn't see a need to get one of the faster cards at this time.

I am now a proud owner of 2 SanDisk Ultra cards and have absolutely 0 issues with it in my Samsung devices.

[[ ORIGINAL REVIEW - 5/1/2013 ]]
I haven't had to buy a microSD card in a long time. The last time I bought one was for my cell phone over 2 years ago. But since my cellular contract was up, I knew I would have to get a newer card in addition to my new phone, the Samsung Galaxy S4. Reason for this is because I knew my small 16GB microSD card wasn't going to cut it.

Doing research on the Galaxy S4, I wanted to get the best card possible that had decent capacity (32 GB or greater). This led me to find that the Galaxy S4 supports the microSDXC Class 10 UHS-I card, which is the fastest possible given that class. Searching for that specifically on Amazon gave me results of only 3 vendors (as of April) that makes these microSDXC Class 10 UHS-1 cards. They are Sandisk (the majority), Samsung and Lexar. Nobody else makes these that are sold on Amazon.

Seeing how SanDisk is a pretty good name out of the 3 (I've used them the most), I decided upon the SanDisk because Lexar was overpriced and the Samsung one was overpriced (as well as not eligible for Amazon Prime).

But the scary thing is that when you filter by the SanDisk, you literally get DOZENS of options. All of them have different model numbers, different sizes, etc. Then there's that confusion of what's the difference between SDHC & SDXC?

SDHC vs SDXC:
SDHC stand for "Secure Digital High Capacity" and SDXC stands for "Secure Digital eXtended Capacity". Essentially these two cards are the same with the exception that SDHC only supports capcities up to 32GB and is formated with the FAT32 file system. The SDXC cards are formatted with the exFAT file system. If you use an SDXC card in a device, it must support that file system, otherwise it may not be recognizable and/or you have to reformat the card to FAT32.

FAT32 vs exFAT:
The differences between the two file systems means that FAT32 has a maximum file size of 4GB, limited by that file system. exFAT on the otherhand, supports file sizes up to 2TB (terabytes). The only thing you need to know here really is that it's possible your device doesn't support exFAT. If that's the case, just reformat it to FAT32. REMEMBER FORMATTING ERASES ALL DATA!

To clarify the model numbers, I I hopped over to the SanDisk official webpage. What I found there is that they offer two "highspeed" options for SanDisk cards. These are SanDisk Extreme Pro and SanDisk Ultra. SanDisk Extreme Pro is a line that supports read speeds up to 95MB/sec, however they are SDHC only. To make things worse, they are currently only available in 16GB & 8GB capacities. Since one of my requirements was to have a lot of storage, I ruled these out.

The remaining devices listed on Amazon's search were the SanDisk Ultra line. But here, confusion sets in because SanDisk separates these cards to two different devices. Cameras & mobile devices. Is there a real difference between the two or is this just a marketing stunt? Unfortunately I'm not sure but I do know the price difference between the two range from a couple cents to a few dollars. Since I wasn't sure, I opted for the one specifically targeted for mobile devices (just in case there is some kind of compatibility issue). To find the exact model number, I would go to Sandisk's webpage (sandisk.com) and compare their existing product lineup. From there, you get exact model numbers and you can then search Amazon for these model numbers. That is how I got mine (SDSDQUA-064G).

As for speed tests, I haven't run any specific testing, but copying 8 GB worth of data from my PC to the card literally took just a few minutes.

One last note is that Amazon attaches additional characters to the end (for example SDSDQUA-064G-AFFP-A vs SDSDQUA-064G-U46A). The difference between the two is that the "AFFP-A" means "Amazon Frustration Free Packaging". Other than that, these are exactly the same. If you're wondering what I got (and want to use it in your Galaxy S4), I got the SDSDQUA-064G-u46A and it works like charm.
1,532 of 1,614 people found the following review helpful
Top of the class among all (budget-priced) micro-SDHC cards I have tested / Works great in Galaxy S3 Sept. 26 2012
By NLee the Engineer - Published on Amazon.com
Product Packaging: Standard PackagingSize Name: 32GB
I have tested dozens of SDHC and micro-SDHC cards. One disturbing trend I noticed is that: the speed class rating for micro-SDHC is typically inflated. For example, a 'class-10' rating means the card must deliver a sequential write speed of at least 10MB/s. But somehow, a class-10 microSDHC cards is always slower than a class-10 SDHC card from the same manufacturer. Case in point: the PNY 32 GB microSDHC Card (P-SDU32G10-EFS2) claims to be 'class-10', yet it can only write at 8.6MB/s maximum, while the full-size PNY P-SDHC16G10 achieved 13.4MB/s according to CrystalDiskMark v3.01.

This SanDisk Ultra 32 GB microSDHC Class 10 UHS-1 card (SDSDQUA-032G-U46A), however, proves to be the exception. It achieved a sequential write speed of over 10MB/s according to two different benchmark programs (11.8MB/s in "CrystalDiskMark", 10.6MB/s in "H2testw v1.4"). This is faster than all my other microSDHC cards, including two 'class-10' cards from PNY and Polaroid.

A closer look at the file transfer speed using "Flash Memory Toolkit" revealed another nice surprise: For writing small files, this Sandisk Ultra microSDHC card performed just as well as its full-size counterpart, the SanDisk Ultra SDHC (SDSDU-032G-AFFP). In contrast, all my other class-10 microSDHC cards perform poorly while writing smaller files. See the benchmark results I uploaded to 'Customer Images' for details.

When you use a memory card in a digital camera to record HD video, it needs to store a huge video file each session. That means its sequential write speed is most critical. When used in a tablet or a smart phone, however, the card's random write speed for small files is more important. That's why in such applications, the Sandisk microSDHC will perform faster than the PNY and Polaroid cards, even though they are also rated as 'class-10'.

[Bottom Line]
As of this writing, the Sandisk Ultra microSDHC card ia actually priced lower than other class-10 cards from PNY and Polaroid. This makes the Sandisk the best value - especially if you need honest class-10 performance across all platforms.

[Side Notes]
- Do not confuse this Sandisk Ultra card with SanDisk Mobile Ultra microSDHC (SDSDQY-032G-U46A). The latter is rated for class-6 only.
- The size of this '32GB' card is 29.7GB according to my computer. This is actually normal because computer people count one Gig as "2 to the power 30", which is 7.3% larger than one billion. So 29.7GB translates to 31.9 billion bytes, which is '32GB' according to marketing people.

[Update on Feb 4, 2013]
1. Amazon combined the Sandisk Ultra 32GB and 64GB cards on the same product page. Please beware that your intended appliance must be compatible with 'SDXC' in order to used the 64GB version. My original review refers to the 32GB 'SDHC' version.

2. There are two part numbers for the same card. If you start from the Amazon product page and select 'Retail Packaging', you'll see the part number of SDSDQUA-032G-U46A. But if you click on 'Frustration Free Package', the part number changes to SDSDQU-032G-AFFP-A.

[Update on Oct 5, 2013]
The Sandisk microSDHC card works great in my new Samsung Galaxy S3, without the need for reformat (the default format is FAT32)

[Update on Dec 26, 2013]
My old test results were limited by the card reader and USB 2.0 port used. I re-tested the Sandisk UHS1 micro card using the Transcend RDF5 Card Reader connected to an USB 3.0 port. Here are the results from 'CrystalDiskMark 3.01 x64':
- Sequential Read speed = 40.0MB/s (was 34.8MB/s when connected to USB 2.0 port)
- Sequential Write speed = 13.1MB/s (was 12.6MB/s when connected to USB 2.0 port)
1,830 of 1,977 people found the following review helpful
1 Star reviews - Micro SDXC card unmounts itself in Galaxy S4 - Solution found - RMA card - Faulty card - instructions in review Aug. 5 2013
By SkincareCEO - Published on Amazon.com
Product Packaging: Standard PackagingSize Name: 64GB
NOTE: please read the last update (scroll to the bottom) - I'm leaving this review as 1 star as it appears to help others who purchased and had a similar experience.

I give SanDisk 5 stars for customer service and 1 star for the product (for those manufactured in the past) For those newly manufactured products that contain the software ROM fix, I'd give the product 5 stars.

To all those who purchased this card due to all the great reviews.... and then used it in a Galaxy S4 (GS4) smartphone for storage, the solution to the problem is not one you can solve without returning the card to SanDisk for a replacement under warranty. Believe me I tried everything that the Google searches returned as solutions... formatting as exFAT, formatting in the GS4 then copying data to the card while in the phone etc.... nothing worked... and so now please stop pulling out your hair and hopefully you will get the same result which I hope to get soon (just RMA'd and will send it back tomorrow for a free replacement under warranty).

The problem (As confirmed from the SanDisk customer support rep when I asked specifically asked him):

- When used in the GS4, this card will unmount itself inadvertently (may be true only for cards manufactured before the ROM patch described below was implemented in manufacturing). This can cause the data to become corrupt (luckily was not my experience) and / or can be very frustrating as most of us are saving 13 MP camera pictures to the card (or MP4 movies that stop in the middle of the movie) and it unmounts when you view the picture in the gallery or worse, right when you take the picture (this was the issue I experienced).

- SanDisk knows about this issue. Again, SANDISK KNOWS ABOUT THE ISSUE AND WILL REPLACE YOUR CARD. Call them (info below) and they WILL take care of it under warranty. They have a good name for a reason and they want to keep it. (sorry SanDisk about the 1 star, but I thought it was the way to get the message out to those searching for a solution)

- The customer rep told me that SanDisk tried to work with Samsung to resolve the issue but Samsung refused to acknowledge a problem exists with this card and some of their phones (especially their flagship GS4 phones).

- The customer rep told me that to their knowledge the card works fine in regular cameras (not Samsung GS4 phones with cameras, obviously) and even worked fine in some phones from HTC etc. that could accommodate the 64 GB cards. Hence the 5 star ratings from others.

- The solution SanDisk came up with was to write a patch into the ROM of the card itself to specifically address the issue on Samsung GS4 phones (and maybe other Samsung phones like the GS3). I was assured that the new card I would get would work flawlessly. will see in about 3 weeks.

- I purchased my card from Amazon June 2013, so the ones currently being manufactured and the one I should get will have the new patch. However, as SanDisk manufactures in batches (like most of the industry), old batches of "unpatched" cards obviously exist in warehouses.

- I asked about a software patch I could download and was told it's not possible... hence the "hard coded patch" in the card's ROM

So... how to take care of the problem....

After speaking with the SanDisk US customer support (link and info below), this is what I learned and did.
Go to the SanDisk site

1) [...]
2) call consumer products support (this is the US no.) 1-866-SANDISK (726-3475)
3) Tell them that the card is unmounting itself in your GS4 (I assume this is also a problem experienced by GS3 owners too)
4) They will then confirm your information, approve your return (10-15 min approval window by mine was basically instantaneously), and then send you emails with a UPS return label and instructions.
5) BTW, they also asked if I had a magnifying glass to ID the serial no. on the card, but I didn't and couldn't read it myself (those numbers are super small printed into the plastic... don't believe me? take a look yourself.) I told the rep I couldn't read them and he said no problem, they would process without the serial no. I assume this is because they send you a new replacement card only when they receive your card you send in. Makes sense.

Well, that's it. Problem (hopefully) solved. Let's see in 2-3 weeks. The rep was super nice about it and seemed like they were all too familiar with the problem. KUDOS TO SANDISK FOR TAKING CARE OF IT... however, it would be nice if there was some type of communication / notice of the issue besides Google info sources, forums etc. I spent hours, maybe a couple of days total hours worth, thinking it was an issue with my phone / my data transfer. oh well, that's how it goes.

I really hope that this review helps some of you out there with the same problem as me. GOOD LUCK!!

(btw, I'd give the card 5 stars if this problem was solved in the patched ROM of newer cards as the data transfer speeds are awesome on the card (tested transferring data via a card reader hooked to my computer)... if the data transfer / remaining mounted in the GS4 issue never existed (pre-patch of ROM, of course))

UPDATE: 08/17/2013 - All went well with the return of the SanDisk Storage card. UPS shipping took about 2 days from when I sent it, SanDisk verified the warranty claim 1 day later and 5 hours later that same day, my replacement card had been shipped. waiting on the new card now, but expect to test it out very soon (early next week). will update the post after testing out the new card. Just as a reference, I've been using a 32GB Micro SD HC SanDisk card in the GS4 since having shipped the 64GB card. Obviously it's a different card and not the Micro SD XC kind. Other than a bit slower access speeds to the card, absolutely zero problems.... well if you don't count that it's basically filled up, hence why the 64GB option is great on the GS4. So it proves the point on the problem with the early build Micro SD XC 64GB cards.

I'm happy to see that my review has helped some others out there. Good luck to you in your warranty claim. my experience with SanDisk customer support has been excellent so far.

Update: 08/21/2013 - Received the new replacement SanDisk Storage card just a few days ago (shipping back to me once they agreed it was defective was a very short time window). Have had it running in the Galaxy S4 for a few days now without any jumps, stutters or card unloading in the middle of picture or video taking. Card seems to work flawlessly as the SanDisk Rep mentioned it would. One would think it's such a short time to test after a few days of use, but if this were not fixed already it would have dismounted in the first 45 minutes... that's how often and how fast it was occurring. so it would seem the problem is solved. The new SD card makes the phone even more responsive when moving between pictures in the gallery and performing other tasks like copying files to the card. Thanks SanDisk! Unless I update this review by next week, you will know that the problem has been fixed.

Good luck to those with similar problems as we now know how to get it fixed thanks to SanDisks great responsive customer service.

Update: 08/31/2013 - This is the last update to this review just to "close the loop". The new replacement card from SanDisk has been running flawlessly for about 2 weeks now. I have not experienced any of the initial problems. SanDisk really did fix the issues in the new batch of cards.

Update: 12/09/2013 - The card has been running in my GS4 flawlessly since replacing it around Aug 21st. Pretty good track record so far (~ 3.5 months) so it appears to be fixed with the newly manufactured (replacement) cards.

For those that have left comments that I should change the rating upwards now that the issue is fixed (see my addition at the beginning of this review)... When searching for a solution to a problem with a purchased product, most people start at the 1 star reviews to see what others have experienced. This is especially true for products with a lot of reviews (this is what I did in the beginning with this product). Therefore I think leaving it at 1 star and adding the comments at the beginning should clarify the review.

Thanks to review commenter "Da Shocker" for his input. I think he sums it up very well when it comes to the value of files stored on media like this:

"One more thing.. to those not happy with the one star rating by this person go ahead buy one. Take tons of pics vids and save some music on there then when the card crashes come back and give it a five star. A card cost $50-$100 pictures from a vacation or family event are priceless.. "
446 of 505 people found the following review helpful
Galaxy S3 July 2 2012
By A. Deanda - Published on Amazon.com
Product Packaging: Standard PackagingSize Name: 64GB Verified Purchase
Works great with my Galaxy S3. Didn't need to format the card or anything. Just popped the card in and everything worked great out of the box. Transfer speeds are excellent with this card. I would recommend this card to everyone.

August 2013, 1 Year Update: My card is still working great to this day. I haven't had any issues with my card at all and transfer speeds are still great. I have had more than 50 GB of information on the card at all times as well.
89 of 97 people found the following review helpful
Failed after one week. July 5 2012
By G. Taylor - Published on Amazon.com
Verified Purchase
As someone else mentioned I was also surprised to get the class 10 version of the SanDisk 64GB MicroSDXC card when the description shows a class 6. Faster is better so I had no problem with that. I inserted it into my Galaxy S3 and it was recognized by the phone and my Windows Vista machine. Using Vista I created several directories and loaded about 10GB of pictures onto the card. Everything seemed ok. I could see them on the phone and the computer. A few days later I took some pictures with the phone which were sent to the card. After 8 pictures the phone reported the card was malfunctioning and all further pictures would go to the built in phone memory. I plugged the phone into the computer and the card was no longer readable. It showed up as empty. I reformatted the card using the phone and now it refuses to recognize the card at all. When I attempt to mount the card it reports an error and refuses to mount. In the documention from the seller it states that there is no returns once the package is opened so now you know. Buy at your own risk.

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