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SanDisk Ultra 64 GB MicroSDXC Class 10 UHS-1 Memory Card with Adapter (SDSDQU-064G-AFFP-A)
- Reformat into file system other than exFAT may cause instability
- Only compatible with SDXC enabled device in exFAT format per SD Standard
- Highest Full HD video recording performance available with class 10 rating
- Ideal for Android, other smartphones and tablets
- UHS-1 enabled
- Faster app performance with transfer speeds up to 30MB/s
- Ships in Certified Frustration-Free Packaging
- Water-proof, temperature proof, X-ray proof, shock proof
Perfect for today’s high-performance Android smartphone and tablet users who want to get the most out of memory-intensive activities like 3-D gaming and apps, the SanDisk Mobile Ultra microSDHC UHS-I card drives transfer speeds of up to 30MB/s for faster app response times. For shooting Full HD video and high-megapixel pictures, it delivers two times the speed of typical microSD memory cards and a class 10 rating for the highest video recording performance available. In addition, the included Sa
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SanDisk Ultra 64 GB MicroSDXC Class 10 UHS-1 Memory Card with Adapter (SDSDQU-064G-AFFP-A)
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Top of the class among all (budget-priced) micro-SDHC cards I have tested,
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 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.
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|Great card once it is formatted correctly,
Initially when I inserted the card into the Samsung Galaxy S3 it recognized it but it wasn’t able to format it correctly. After doing some research I found a free program EaseUS Partition Master [...] that will format the card into FAT 32 since Windows no longer allows you to do it by default. After formatting it into fat 32 the phone recognized the card and it works great now. I hope this helps anyone else that might run into this problem.
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|Galaxy S3,
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.
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