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Customer Reviews

4.6 out of 5 stars
Transcend 16GB SDHC Class 10 Flash Memory Card Up to 30MB/s (TS16GSDHC10E)
Capacity: 16GB|Style: Card Only|Package Type: Frustration-Free Packaging|Change
Price:$10.18+ Free shipping with Amazon Prime

on April 11, 2010
Update 3/6/2012 I own about 20 Transcend cards now. They have all worked without an issue untill today. I dread calling any company for return support because it usually is such a tortured experience...(Ever tried calling SanDisk for product support?) Withing 20 seconds of dialing I was connected to their representative Marc Crawford. He was able to quickly and clearly guide me to the support I needed. It was such a shockingly great experience that I wanted to pass it along to potential purchasers.

UPDATE 9-10 I own 4 of these cards now. I have more of these than any other card I own because they are a very good value for capacity/price/and speed. My initial disappointment over the lack of super high speed is outweighed by the reality that this card is an exceptional value.

If you own a compact digital camera, or SD/HD video camera, this card will exceed the capabilities of all of them. For compact cameras the card isn't usually the slowest part of the data write process, it's the camera.
This card unloads very quickly with a 20MB/s read speed. You will need a SDHC card reader if you don't have one. A standard SD card reader will not read a HC (high capacity) card.

These cards make great gifts. I have given several of the 8 Gig cards as gifts and have received appreciation and great comments from all the recipients.

I purchased this card making the assumption that all class 10 cards had the same read and write speed. This was a poor assumption on my part. In order for a card to qualify for class 10 speed the card needs to be certified to have 10MB/s write and read speed. Some manufacturers classify their cards at a slower speed even though they qualify for a higher class. SanDisk make some cards that would qualify for class 10 and rates them as class 6.

The product photo on Amazon does not have the card's speed printed on it. The card that was shipped shows the front of the card printed with "20MB/s" which is the cards read speed. The cards write speed is 16MB/s.

I own a SanDisk Extreme III class 10 card that has (up to) 30MB/s read and write speed. My Nikon D-90 that can take advantage of the SanDisk cards speed. The difference is the SanDisk card can capture 100 photos at fine resolution in 24 seconds. The Transcend card captures 66 photos in the same time/resolution.

I reality very few people will ever have the need to drill off 100 photos in 24 seconds, but I can't stand to lose a good shot because the camera is slow while writing to the card and I can't fire the shutter. You can hear this happen at about 4.5 seconds in the video review. This does not happen with the SanDisk class 10 30MB/s card.

If you own an SLR that is capable of rapid fire, high-resolution photography you may want to consider the SanDisk Extreme III 30 MB/s card. It is expensive.

This card is reasonably priced for a class 10 card. Just know what you are getting, what your needs may be, and what else is available. I own other Transcend cards and they have always worked properly without any issues.

The video that I attached shows this card with the same 24 seconds that I gave the SanDisk Card.

To see the SanDisk Extreme III 30MB/s video demo and review on Amazon go to:

Sandisk SDSDX3-008G-E31 8GB Extreme III SD Card 30MB/s (RETAIL PACKAGE)
5150+ comments| 2,968 people found this helpful. Was this review helpful to you? Report abuse
I find these transcend SDHC cards to be better than the SanDisk products. I was having some issues with the SanDisk ones- my camera was saying they were slow. I have not had that problem with these Transcend cards. They are working very well for me. The speed is faster and they are the same class as the SanDisk ones that I purchased. I found that my videos on the sandisk were not uploading correctly and were taking hours to upload a 5 minute video. I have had none of those issues with the Transcend SDHC cards. I find them to work much better and my uploading speeds are higher and so much faster with these. I will continue to buy them.

Transcend 16GB SDHC Class 10 Flash Memory Card Up to 30MB/s (TS16GSDHC10E)
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on May 12, 2013
The 1-star threads are like watching a committee of blind men describing an elephant. Unsurprisingly, no one has the complete picture, but a lot of Canon owners think these cards are bogus. SD card technology is very complex, the Class system is often misunderstood, and there is a long history of compromised cards appearing on eBay -- or even from reputable dealers who have been hoodwinked. Kingston cards are most often faked (or taken from the midnight production run); that's because Kingston has about a third of the flash card market and doesn't forge their own chips, but any manufacturer can be spoofed. It doesn't pay to buy cheap cards on eBay or less reputable sources.

An SD card contains a controller chip and flash memory chips, even the microSD versions. Realize that SD means Secure Digital, and that security comes from crypto managed by the controller (MMC cards didn't have that bloat, but Hollywood DRM requirements made sure they faded.) The controller can be pretty powerful: the Samsung SD controller is a 32-bit ARM TDMI chip with 128 k of code space -- that's cell phone power. It handles I/O and fading (when the card slowly wears out its NAND sites after about 100,000 hits so writing is randomly distributed and kept track of), the factory self-test, and a host of other functions, but it can also be programmed to report a false storage capacity. Sometimes the firmware on the controller or its crypto or something else on certain cards leads to problems with certain hardware, as it has, for example, with the Samsung Galaxy III and maybe the Canon cameras. Usually the card is found to confirm to SDcard dot Org specifications and the hardware is to blame, but you never know.

To test the actual capacity of your card, use H2testw, which is free. It writes the full amount of data to the card and then reads it back (this nukes whatever was on the card). This can take more than an hour with a 32 GB card but it tells you if the card indeed holds 32 GB or has problems. It also gives you read and write speed numbers, but it's unclear whether the numbers are for random read/write, or sequential read/write. Sequential write is what photographers and videographers care most about.

Sometimes a Class 6 card might test faster than a Class 10 card, when using computer read/write tests or even in a camera that wasn't designed with higher capacity cards in mind. That's because they use smaller block sizes (there's no cache on an SD card). Explaining the significance of this is getting too far into the weeds for an Amazon review, and modern devices and their firmware should not have that limitation.

To test random and sequential read/write speed, use CrystalDiskMark, also free. Run the full suite; it won't take long. CrystalDiskMark requires that the card be formatted, and the most reliable way to do that is to use the free tool from sdcard dot org. A 32 GB card will may report 39.9 GB before formatting and 29.8 GB after; don't worry, you haven't been ripped off.

Unfortunately, there's no easy way to read the manufacturer's ID off the SD card, even in Linux, to determine who actually made the card, because you have to have it connected directly to a motherboard; an SD-to-USB adapter won't work because it doesn't pass through disk data, and that's what's in nearly all computers. But what do you care, so long as the card's as big and fast as claimed?

Now, what about the Transcend 32 GB SDHC C10 card? Here are full test results from CrystalDiskMark:

Transcend 32 GB SDHC C10
CrystalDiskMark 3.0.2 (C) 2007-2013 hiyohiyo
Crystal Dew World : [...]
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

Sequential Read : 19.953 MB/s
Sequential Write : 13.786 MB/s
Random Read 512KB : 19.618 MB/s
Random Write 512KB : 13.827 MB/s
Random Read 4KB (QD=1) : 3.003 MB/s [ 733.2 IOPS]
Random Write 4KB (QD=1) : 1.414 MB/s [ 345.1 IOPS]
Random Read 4KB (QD=32) : 3.491 MB/s [ 852.3 IOPS]
Random Write 4KB (QD=32) : 1.842 MB/s [ 449.8 IOPS]

Test : 50 MB [F: 0.0% (0.0/29.3 GB)] (x5)
Date : 2013/05/12 18:19:47

So you can see that the sequential write speed, what matters to a photographer or videographer, is over 13 MB/s, more than 30% above the C10 spec. The other speeds aren't to shabby, either. There's no way that this card is too slow for a contemporary camera, still or video, that is functioning properly.

Also on Amazon for a very attractive price is a Sony 32 MB SD card. Here are the full CrystalDiskMark test results for it:


Sequential Read : 19.998 MB/s
Sequential Write : 14.115 MB/s
Random Read 512KB : 19.772 MB/s
Random Write 512KB : 13.173 MB/s
Random Read 4KB (QD=1) : 3.682 MB/s [ 899.0 IOPS]
Random Write 4KB (QD=1) : 2.302 MB/s [ 561.9 IOPS]
Random Read 4KB (QD=32) : 4.517 MB/s [ 1102.8 IOPS]
Random Write 4KB (QD=32) : 2.323 MB/s [ 567.0 IOPS]

So the Sony is slightly faster, 40% over spec. H2testw also reported full capacity and no errors for this card, so they are both top notch (The Sony doesn't come with a little case and the case for the Transcend case is about twice as big as it needs to be and so won't fit in the little pockets in a modern camera bag. Big deals.)

Just for reference, here are the results for a contemporary USB thumb drive:

SanDisk Ultra 32 GB USB thumb drive

Sequential Read : 22.508 MB/s
Sequential Write : 7.985 MB/s
Random Read 512KB : 22.365 MB/s
Random Write 512KB : 1.767 MB/s
Random Read 4KB (QD=1) : 3.719 MB/s [ 908.1 IOPS]
Random Write 4KB (QD=1) : 0.520 MB/s [ 126.9 IOPS]
Random Read 4KB (QD=32) : 3.871 MB/s [ 945.0 IOPS]
Random Write 4KB (QD=32) : 0.482 MB/s [ 117.7 IOPS]

As you can see, this USB drive is faster than the SD cards for reading, such as playing music, running software, or looking up data, which shows that it is nicely optimized for its intended functions.

As an aside, anyone who thinks they have lost data on an SD card can recover pictures using the free tool at z-a-recovery or recover everything(!) with the free PhotoRec tools.

So, if people want to whine about these SD cards in their particular cameras, they should run these simple, free tests and reach their own conclusions about whether the cards are "too slow." The cards test above spec objectively. And they both work flawlessly on my still (not Canon) and video cameras. I think they have gotten a bad rap here from people who don't have the full picture, so to speak.

I'll also post this as a review, and on the Sony 32 GB page, too. I hope you found it informative.
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I'm very happy with this flash card. I originally bought it for my new camera, which it is has worked well in. It holds a TON of photos, easily transfers to my computer, seems to be well made, and has worked well each time I've used it. I can use this to take seemingly limitless photos - and the quality of the photos is good. I know that has more to do with the camera, but I've had flash cards that have degraded the quality of my photos. This one didn't do that. I used to only by Sandisk, but no more. These are a great value!

Bottom Line: I really like this brand. The cost is amazing, the quality is great, and I have yet to fill it up. Even on a week long vacation of taking so many photos I got "photog finger". (Haha Don't even know if there even is such a thing.) I'm now a Transcend follower and will buy another flash card from this brand when I need one. Oh - and it arrived very quickly. I'm a happy camper!
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This video review is misleading and a fraud. But that's only a bad thing for SanDisk as this Transcend card is literally more than 99% as fast as the most expensive SanDisk card you can buy for a Nikon D90. Hell, this video is the reason I bought the SanDisk card.

In the video review where he states "...The difference is the SanDisk card can capture 100 photos at fine resolution in 24 seconds. The Transcend card captures 66 photos in the same time/resolution" he is lying. I too have a Sandisk Extreme III card, a Transcend Class 10, a Transcend Class 6 card and a Nikon D90. I repeated this frame rate test at several resolutions. At EVERY resolution, there is EXTREMELY LITTLE frame rate difference between these cards. The truth is that even Transcend Class 6 cards offer essentially the same frame rate at the same resolution as the most expensive SanDisk card you can buy. The ONLY way you can get a D90 to shoot at maximum advance rate for 100 shots (without any buffer lag) is to drop to a low resolution and AS LONG AS YOU ARE RUNNING TRANSCEND CLASS 6 OR HIGHER, YOU WILL GET THE FASTEST FRAME RATE A NIKON D90 OR D7000 CAN MUSTER.

I also own a Nikon D7000 that shoots at a substantially faster maximum advance AND writes MUCH larger files. At highest resolution of RAW + Fine Large jpeg, the difference between this Transcend Class 10 card, the SanDisk Extreme III and a Transcend Class 6 card is insignificant. We're talking about approximately 0.2 frames difference in a 4-second burst at Continuous High advance. All cards burn down the buffer in less than 2 seconds and then you are in jerky buffer-restricted advance at the same rate regardless of card.

Food for thought: SanDisk marketed their Extreme 30MB/second cards as BOTH Class 6 and Class 10 at different times. They are the same cards. The TRUE difference between Class 6 and Class 10 is, wait for it... MARKETING. Wonder why Transcend Class 6 cards cost about the same as their Class 10 cards? Probably because they perform the same and likely ARE the same...

This and the Transcend Class 6 card get 5 stars because they are literally over 99% as fast as the SanDisk "30MB/s" cards at a fraction of the price. Do NOT waste your money on SanDisk cards. They do not improve frame rate over Transcend Class 6 or 10 cards nor do they transfer to computer any faster. I'd only give the SanDisk cards 2 stars because they perform well but are EXTREMELY overpriced.
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on July 23, 2016
I had bought a Nikon D5100 camera a few years back and needed a memory card for it. I've had a lot of memory cards for older point and shoot cameras. They were all from Transcend and I've never had any issues with those. So I decided to stick with the same brand. This time around I needed something with more storage capacity. I purchased the 16 GB size memory card.

The 16 GB was the perfect size for us. We don't usually leave a lot of pictures and videos on our camera. As soon as we get the chance, we upload all the pictures and videos onto our computer/laptop and then delete them from the memory card to clear up more space. But even with that we've never come close to using up all the space on this memory card. We don't take many videos but take tons and tons of pictures.

This is a great memory card for the price you pay. I've never had any issues with this or any of the other previous Transcend memory cards. Very good brand and would highly recommend this.
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on May 17, 2016
When I bought my Canon Powershot SX 400 IS, I know I will need a new SD card so I thought I will buy this.
It came in Frustration Free Packaging and lots of papers and warranty card.
I have different kinds of SD card but I think this is my first SDHC card Class 10.
Works great in my new camera and it transfers fast in my computer.
I have no problem with it.
It came fast, the same day my camera came so I am pretty happy.
I don’t know the exact capacity because the moment I was able to charge the battery of my camera and put the card in and take pictures, I download them all on my computer and delete the files on my card.
I'm going to buy a higher GB if I wanna take videos and an extra battery for my camera.
review imagereview imagereview image
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on May 18, 2016
This works very well for my application, which is in a 2015 Dodge Durango SD slot (UConnect 8.4N RA4). Many car SD card slots are limited to cards formatted with the FAT32 filesystem, and the maximum size of a card formatted with FAT32 is (as the name implies) 32GB, so for a lot of cars, this is the best you'll get without some luck and or/hacking. Many also list a maximum speed "class" of 8, but selection of those is pretty slim and usually far more expensive these days. Oftentimes, Class 10 will work just fine.

I've owned several Transcend products, from flash drives to SD cards to an SSD, and I've never had a single issue. Flash memory is inherently stable, of course, but Transcend has yet to let me down. I use their flash memory in my phone, car, and computers. Sure, you could spend more, but really, flash memory is made in two factories, that's it. Both make good products, and you'll get the same thing no matter what the label is, as long as it is a recognized name brand and not a nonbranded knockoff which often uses far smaller capacity chips than listed. Transcend offers great value and a recognized name.

With Class 10 speeds, the card ceases to be a bottleneck like they were years ago. YOu may notice it takes some time to completely fill the card with ~30GB of data, but that's to be expected with SD currently.It certainly won't slow down reading of music or writing of photos from the camera.

Fully Class 10 compliant, Transcend’s Premium SDXC/SDHC Class 10 Cards help improve camera response with ultra-fast read speeds of up to 30MB per second. This outstanding performance is ideal for capturing high-resolution photographs and flawless Full HD videos.Transcend's SDXC/SDHC Class 10 Series memory cards come in a wide range of capacities from 8GB to 128GB to fit your storage needs. Whether you have a simple point and shoot or a high-end DSLR, they are the perfect everyday SDHC card to have during all occasions. The versatile SDXC/SDHC Class 10 cards support the latest Class 10 compliant cameras and camcorders, and are also backward compatible with any devices below Class 10. To improve post production efficiency, maximize the transfer rate by pairing the SDHC card with Transcend's USB 3.0 RDF8 Card Reader to achieve a speed of up to 22MB/s. With a purchase of Transcend’s SDXC/SDHC Class 10 memory cards, you can download RecoveRx software for free. This user-friendly application allows you to conduct an in-depth search within your storage device for traces of erased files to be recovered.
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These cards have the following problem after many insertions or extractions into an SD card reader.
To the left of the card is a slider switch. Said switch when unlocked in a fully upward position will allow your PC to delete files on the SD card.
When the switch is in a downward position it is locked and your PC cannot modify the files on the card.
When you insert this card into a card reader in a totally upward or unlocked position, the slider moves ever so little downwards. Even half a millimeter is enough, and your pc cannot modify the files.
In theory all the way up is unlocked and all the way down is locked. This is not true, an infinitesimally small distance downwards will also lock the card.
I have tried many ways to keep the slider all the way up, such as a small amount of tape, or using a toothpick to insert the card to ensure the slider does not move. Out of 5 tries, one is successful. But this is a huge waste of time.
I have three of these cards and all three have the same problem.
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on June 1, 2016
I purchased this 32gb memory card to use in my gaming system to save downloaded games onto. It is a class 10 memory card and as far as memory cards so I always try to get the class 10 cards because they are the quickest for transferring data. This card will hold a lot and is just what I needed for my games. It has been very reliable and has not given me any fail issues. It is the standard sized SD high capacity card and it comes in a nice plastic case for storage. Good to have if you plan to take this card anywhere outside or plan to stick it in a bag. This is a great card and does everything the higher costing brand name cards do for a fraction of the cost. I am very satisfied with this card and I have gotten cards from this brand before. Never an issue with them.
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