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Technical Details
- Seamless speed and performance with microSDHC - compatible devices
- Tested under the most extreme conditions
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Product Description
Providing you the high capacity to meet the needs of today's business professional. Whether you are stuck in an airport or taking a taxi to your next big pitch, SanDisk mobile memory cards enable you to meet deadlines by plugging your files directly into most phones with a microSD card slot, providing convenience and reliability. Class 4 Speed performance rating.
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Customer Reviews
Most Helpful Customer Reviews
219 of 227 people found the following review helpful
By K. Folsom
Amazon Verified Purchase
I've been impressed with the Sandisk 32GB Class 2 microSDHC card so far. I bought it with bulk packaging, which means it came in a small plastic clam shell case slipped into a little plastic envelope. There were no included adapters.
I'm using the card in my Android Nexus One cellphone. I've used a benchmark app on the phone to gauge performance of the card, and it is doing about 5MB/sec writes and 9MB/sec reads. This is with settings at 10MB test data size and 8KB write unit size. I saw similar write performance when the card was mounted on my PC via a USB 2.0 card adapter. These numbers indicate it's performing somewhat better than the minimum guaranteed for Class 4 cards, which is great. I'm coming from a 16GB Class 6 card and haven't noticed any performance hits, so far.
I'm using the card in my Android Nexus One cellphone. I've used a benchmark app on the phone to gauge performance of the card, and it is doing about 5MB/sec writes and 9MB/sec reads. This is with settings at 10MB test data size and 8KB write unit size. I saw similar write performance when the card was mounted on my PC via a USB 2.0 card adapter. These numbers indicate it's performing somewhat better than the minimum guaranteed for Class 4 cards, which is great. I'm coming from a 16GB Class 6 card and haven't noticed any performance hits, so far.
1,294 of 1,394 people found the following review helpful
By Michael M.
Just a caution for you all, if you intend to use these chips for camcorders or cell phone video recording, make sure the chips are a minimum Class 4, or ideally Class 6 or 10. For file storage or file transfers Class 2 chips are fine, but I would not use Class 2 cards on newer devices that require a faster SD or microSD card.
Bottom line first: I have some of these cards (bought because of the price and even I can't resist a good deal on cheap storage), but also Class 4, 6, and 10 chips. (In fact, my review of this chip is based on owning about 300 chips (or cards if you prefer and using chips back in the days when 2 MB chips were $90, yes, I said "megabyte" :)
The caution you have to take is that if you are getting these chips as a primary or principal card, keep in mind that its speed rating may be insufficient for use on SOME of your devices. (E.g., some cell phone camcorders record video fine, others require a faster chip, such as Class 4 or 6).
Details:
An SDHC's "Class" rating is its performance based on how fast the chip can transfer digital information on or off the chip. Why is this important?
In layman's terms some Class 2 chips are too slow, on some devices. Basically, Class 2 SDHC chips (even brands brand name cards) cannot record/transfer modern-day HD video digital information fast enough. Your video will record with lag and play with lag ("lag" means delay or choppiness).
Transfer rates (sometimes called "speed ratings") for the current chips are:
Class 2 = 2 MB per second file or digital information transfer speed.
Class 4 = 4 MB per second.
Class 6 = 6 MB per second.
Class 10 = 10 MB per second.
Interesting: Until recently most chips have had the Class rating imprinted on the label. It's the letter "C" with a number 2, 4, 6, 10 inside the C loop. Also until recently it was only chips from questionable manufacturers who did not identify the chips speed rating on the label (because those chips were typically low speed Class 2 chips). That's why it's not cool for SanDisk to be doing this, hiding the fact that a chip is Class 2. (Of course SanDisk is simply doing what its customers want, providing a high capacity chip at the lowest possible price.)
Sidenote: Some device manuals will warn about the minimum Class (speed) a chip/card should be, some manufacturers do not clearly disclose chip speed requirement for video recording/playback.
Pricing: Generally the faster the chip the more expensive it will be. If a card is 16GB for $20, that's usually a hint that it is a Class 2 or 4. As you may have correctly assumed, brand name cards with high capacity (32 GB), Class 6 and 10, from a reputable seller are going to be way more expensive than chips with one or all of these factors missing. That old saying applies here: "you get what you pay for."
And no offense to people, but if you think that because a chip is 32 GB and says "SanDisk" on it, that the card must be good, well, that makes as much sense as thinking $100 digital camera must be good because it has "12 Mega Pixels" emblazoned on the front.
Bonus Tip: On eBay there's thousands of sellers in China selling counterfeit chips (estimates are that 90% of eBay chips are counterfeit. Chips that are labeled SanDisk when they are not, Class 6 when really Class 2, etc.)
So I would buy chips from an established seller on Amazon, someone who sells only chips and has been doing so for a long time, and who has great reviews, or buy from your local retailer. More expensive, for sure, but that's better than the 90% chance you will be getting a fake chip on eBay.
If you do buy on eBay, NEVER buy chips from Hong Kong sellers, including the ones who post a fake U.S. address. A hint that something is amiss is to ask yourself how a Hong Kong seller can list on eBay cards for 1/10th the price that U.S. online sellers require to purchase the supposed same chip. (And remember that the Chinese sellers are very good at making the fake product look like the real thing.)
Bonus Tip: The "HC" in "SDHC" has nothing to do with speed. The "HC" designation came out when chips went over 2GB. It stands for "high capacity."
Bonus Tip: Class 2 chips will in fact record video. On older devices a 2GB chip was state of the art at the time, so in 2009, for example, a phone or camcorder will record quite well using Class 2 chips. But in these days of 720p and 1080p true HD recording, even on cell phones, a Class 2 chip may not do. (Note: some manufacturers include a warning on the device, including in the video troubleshooting section, that a chip may be too slow for some recording settings).
The way you will find out that you needed a Class 4, 6, or 10 MB/s chip is when you play the video. It will be choppy (and some videos won't even play).
If you get poor playback, the culprit is usually the Class 2 chip. (Also, poor playback can happen if you are playing the video on your PC directly from the chip, that is, rather than transferring the file to your PC then playing it from there. If the chip is too slow, simply transfer the file to your PC then play the video.)
Bonus Tip: Ideally always buy Class 4 or greater chips. More expensive, yes, but the performance can range from better to outstanding. Plus while any chip can transfer files from the chip on to the computer, the higher speed chips transfer files a lot faster. That's a huge benefit when transferring HD video, that can get up to 4GB in size.
Note: Ever wonder why some devices limit the length of your video, say to 10 minutes? That's because the device cannot handle large files and/or the chip may be too slow to work with files 2GB or larger. Easiest workaround for device manufacturers, limit the length of your video.
Bottom line first: I have some of these cards (bought because of the price and even I can't resist a good deal on cheap storage), but also Class 4, 6, and 10 chips. (In fact, my review of this chip is based on owning about 300 chips (or cards if you prefer and using chips back in the days when 2 MB chips were $90, yes, I said "megabyte" :)
The caution you have to take is that if you are getting these chips as a primary or principal card, keep in mind that its speed rating may be insufficient for use on SOME of your devices. (E.g., some cell phone camcorders record video fine, others require a faster chip, such as Class 4 or 6).
Details:
An SDHC's "Class" rating is its performance based on how fast the chip can transfer digital information on or off the chip. Why is this important?
In layman's terms some Class 2 chips are too slow, on some devices. Basically, Class 2 SDHC chips (even brands brand name cards) cannot record/transfer modern-day HD video digital information fast enough. Your video will record with lag and play with lag ("lag" means delay or choppiness).
Transfer rates (sometimes called "speed ratings") for the current chips are:
Class 2 = 2 MB per second file or digital information transfer speed.
Class 4 = 4 MB per second.
Class 6 = 6 MB per second.
Class 10 = 10 MB per second.
Interesting: Until recently most chips have had the Class rating imprinted on the label. It's the letter "C" with a number 2, 4, 6, 10 inside the C loop. Also until recently it was only chips from questionable manufacturers who did not identify the chips speed rating on the label (because those chips were typically low speed Class 2 chips). That's why it's not cool for SanDisk to be doing this, hiding the fact that a chip is Class 2. (Of course SanDisk is simply doing what its customers want, providing a high capacity chip at the lowest possible price.)
Sidenote: Some device manuals will warn about the minimum Class (speed) a chip/card should be, some manufacturers do not clearly disclose chip speed requirement for video recording/playback.
Pricing: Generally the faster the chip the more expensive it will be. If a card is 16GB for $20, that's usually a hint that it is a Class 2 or 4. As you may have correctly assumed, brand name cards with high capacity (32 GB), Class 6 and 10, from a reputable seller are going to be way more expensive than chips with one or all of these factors missing. That old saying applies here: "you get what you pay for."
And no offense to people, but if you think that because a chip is 32 GB and says "SanDisk" on it, that the card must be good, well, that makes as much sense as thinking $100 digital camera must be good because it has "12 Mega Pixels" emblazoned on the front.
Bonus Tip: On eBay there's thousands of sellers in China selling counterfeit chips (estimates are that 90% of eBay chips are counterfeit. Chips that are labeled SanDisk when they are not, Class 6 when really Class 2, etc.)
So I would buy chips from an established seller on Amazon, someone who sells only chips and has been doing so for a long time, and who has great reviews, or buy from your local retailer. More expensive, for sure, but that's better than the 90% chance you will be getting a fake chip on eBay.
If you do buy on eBay, NEVER buy chips from Hong Kong sellers, including the ones who post a fake U.S. address. A hint that something is amiss is to ask yourself how a Hong Kong seller can list on eBay cards for 1/10th the price that U.S. online sellers require to purchase the supposed same chip. (And remember that the Chinese sellers are very good at making the fake product look like the real thing.)
Bonus Tip: The "HC" in "SDHC" has nothing to do with speed. The "HC" designation came out when chips went over 2GB. It stands for "high capacity."
Bonus Tip: Class 2 chips will in fact record video. On older devices a 2GB chip was state of the art at the time, so in 2009, for example, a phone or camcorder will record quite well using Class 2 chips. But in these days of 720p and 1080p true HD recording, even on cell phones, a Class 2 chip may not do. (Note: some manufacturers include a warning on the device, including in the video troubleshooting section, that a chip may be too slow for some recording settings).
The way you will find out that you needed a Class 4, 6, or 10 MB/s chip is when you play the video. It will be choppy (and some videos won't even play).
If you get poor playback, the culprit is usually the Class 2 chip. (Also, poor playback can happen if you are playing the video on your PC directly from the chip, that is, rather than transferring the file to your PC then playing it from there. If the chip is too slow, simply transfer the file to your PC then play the video.)
Bonus Tip: Ideally always buy Class 4 or greater chips. More expensive, yes, but the performance can range from better to outstanding. Plus while any chip can transfer files from the chip on to the computer, the higher speed chips transfer files a lot faster. That's a huge benefit when transferring HD video, that can get up to 4GB in size.
Note: Ever wonder why some devices limit the length of your video, say to 10 minutes? That's because the device cannot handle large files and/or the chip may be too slow to work with files 2GB or larger. Easiest workaround for device manufacturers, limit the length of your video.
104 of 110 people found the following review helpful
By Walter Wu
Amazon Verified Purchase
I purchased this "bulk packaging" 32GB micro SHDC card from Marketplace seller, KomputerBay. I was wary of purchasing this particular product from a marketplace seller because of the rampant availability of fake/counterfeit micro SDHC card being sold on eBay and other sales channels, but since this was being offered via Amazon fulfillment, I thought it would be a low-risk transaction.
I was wrong.
I was immediately suspicious when the product arrived, because the microSD to SD adapter card had a much older label than a more recent retail SanDisk microsdhc card that I purchased. When I inserted it into my computer, it reported a size of 30.6GB but states that it was unformatted and asked if I wanted to format it. I clicked yes, but it immediately stated that the card was unformattable. I tried different adapters and different computers, but it just wouldn't format. A closer look at the card also showed irregularities in the casing. This was a fake card. A little more internet research confirmed that at a minimum, a legitimate card has a serial number on it, although some fake cards do, too. The card I received had no serial number on it.
Do a search on fake microSDHC cards on the internet and you'll see a bunch of stories about it.
My advice to you is to stick to retail packages of these cards. Don't be fooled by the lower prices. Although there may be legitimate marketplace sellers offering cards in bulk packaging, it may be difficult figuring out who's selling the fake ones.
I was wrong.
I was immediately suspicious when the product arrived, because the microSD to SD adapter card had a much older label than a more recent retail SanDisk microsdhc card that I purchased. When I inserted it into my computer, it reported a size of 30.6GB but states that it was unformatted and asked if I wanted to format it. I clicked yes, but it immediately stated that the card was unformattable. I tried different adapters and different computers, but it just wouldn't format. A closer look at the card also showed irregularities in the casing. This was a fake card. A little more internet research confirmed that at a minimum, a legitimate card has a serial number on it, although some fake cards do, too. The card I received had no serial number on it.
Do a search on fake microSDHC cards on the internet and you'll see a bunch of stories about it.
My advice to you is to stick to retail packages of these cards. Don't be fooled by the lower prices. Although there may be legitimate marketplace sellers offering cards in bulk packaging, it may be difficult figuring out who's selling the fake ones.
Most Recent Customer Reviews
5.0 out of 5 stars
Very Useful
I gave this product 5 stars because I found it to be very useful for my MP3 player. It was easy to install and has a lot of memory.
Published 15 hours ago by R. Parker
5.0 out of 5 stars
32GB micro SDHC Card
I bought this card for use with my NIKON D7100 and, so far, it works like a charm. No problems. However, one needs to make sure you have the SD card adapter to go along with this... Read more
Published 3 days ago by AF
5.0 out of 5 stars
Good product and price.
This works fine and is a very well-rated memory card. My phone is supposed to use no higher than a 4, so this is the best I can get. Read more
Published 4 days ago by shasta54
5.0 out of 5 stars
Perfect
I find it very nice with the 32 gb and then I have a lot of storage. This is perfect for me.
Published 4 days ago by RuneS
4.0 out of 5 stars
class 4, but still works great.
I use this in my Droid, and as I don't play games off of it the incredibly slow read/write speeds are bearable. HD movies play fine from it, but mobile games will be slightly slow. Read more
Published 5 days ago by Alex Ohannes
2.0 out of 5 stars
Fraud
Paid for two 32 GB microSDHC, at accost of $37.00 and some change. When I place the product in my device to copy some videos, it would not work. Read more
Published 5 days ago by Randy Vickers
5.0 out of 5 stars
Works! Voila!
Works well with a Creative Zen M300 mp3 player. Make sure you are getting RETAIL packaging!
SanDisk is always the way to go, just make sure that it fits the requirements... Read more
SanDisk is always the way to go, just make sure that it fits the requirements... Read more
Published 5 days ago by Greedo
3.0 out of 5 stars
Had problems after about 4 months, unusable after that time.
I bought this is December, came in quickly if I recall correctly, after about 3 days with the free shipping method. It worked for about 4 months, then I began to have problems. Read more
Published 6 days ago by LacrosseGuy
5.0 out of 5 stars
Exactly what they claim
Not sure what one can say about a memory card, but it is the correct capacity and seems to operate at the appropriate speed. Delivery was speedy and with no hassles.
Published 6 days ago by Space Cadet
4.0 out of 5 stars
Nice extra storage
Bought this as extra storage for my phone and works great for that. Was a nice backup to a memory card for a digital camera.
Published 6 days ago by BracDiver
