Kingston Digital 16 GB microSD Class 10 UHS-1 Memory Card 30MB/s with Adapter (SDC10/16GB)

Kingston Digital 16 GB microSD Class 10 UHS-1 Memory Card 30MB/s with Adapter (SDC10/16GB)..

GET Kingston Digital 16 GB microSD Class 10 UHS-1 Memory Card 30MB/s with Adapter (SDC10/16GB) By Kingston

Most helpful customer reviews

76 of 79 people found the following review helpful.
Too slow to be class 10
By BobbyA
I tested the Kingston 8GB class 10 micro SD card using ATTO Disk BenchMark v2.46
Write speed was approximately 7.5 MB/sec, Read speed was approximately 12 MB/sec.
I requested an RMA from Kingston and returned it for an exchange. The new one measured:
Write speed approximately 7 MB/sec, Read speed approximately 13 MB/sec.
Compare these to a Kingston 8GB micro SD class 4 from 2 years ago, which measured:
Write speed approximately 9 MB/sec, Read speed approximately 16 MB/sec.
Or an ADATA 8GB micro SD class 6 (FWIW 1st one of these had to be exchanged too):
Write speed approximately 7 MB/sec, Read speed approximately 16 MB/sec.

Conclusion, unless an application only needs to read quickly, where cameras for instance need to write quickly, I would not buy this SD card again for class 10 performance, since I can get the same result with cheaper claas cards, or better performance with another brand. I also tested each card in my Nikon DSLR, results tracked the Benchmark testing, measured as number of pictures in a 20 second period with the shutter button held down.

Update:
I recently bought a Wintec 16GB class 10, same measurement setup indicated 12 MB/sec write, 16 MB/sec read speed. Besides the wintec actually doing what it was advertised to, these results indicate nothing in my hardware was keeping the Kingston card from achieving 10 MB/sec if it had been good enough.

29 of 31 people found the following review helpful.
Returned 2, didn't meet class 10 rating minimum. My class 6 whooped it.
By Amazon Dealfinder
SD cards have a universal standard they have to meet to get a class rating. The class number guarantees a minimum write speed. MINIMUM being the point, it is NOT an average.

This card is highly rated by numerous computer hardware websites that benchmark flash card memory. On all of those sites the benchmarks show this card exceeding it's rated write speed of 10MB/s (most by double the rated speed).

This particular card is rated as a class 10 and therefore have a minimum of 10MB a sec. After using 5 different benchmark programs on 2 computers and an Android phone my results were: Writing speed: 6-8.6 MByte/s, Reading speed: 15-18.2 MByte/s.

At this point I still trust the Kingston name so I have opted for an exchange.

UPDATE: Got the replacement, tested with the same 5 programs and pretty much got the same result (ever so slightly higher average). So I am returning it and going to try another brand (keep reading).

On a side note. I decided to test my Lexar Professional Series 8 GB 133x Class 6 SDHC Flash Memory Card SD8GB-133-381 that I bought here on Amazon back in Mar09. That class 6 card, with the same benchmark programs were: Writing speed: 16-17.8 MB/s, Reading speed: 19-21.2 MB/s.

26 of 29 people found the following review helpful.
Failed and "Lifetime Warranty" is pretty useless
By Mark Edelstein
I bought the card and it worked fine for about 3 months than completely failed. Since it has a "Lifetime Warranty", I took advantage of that, returned it to Kingston, and since have had to follow up every step of the return process.

I got delivery confirmation from the Postal Service, then had to send Kingston an e mail two days after the card was delivered to find out what the status was on the order. Their website said they'd be a little more speedy on processing warranty claims. Two days later I got a note that they'd get the mailroom to move the package through, which they seem to have done, although it should have already moved through based on what their website says. I waited a day for an update on their website as to the status of the return and checked it this morning.

They finally processed the return, but DARN THE LUCK, the replacement item is BACKORDERED. I called customer service, and the lady was very nice, but told me the item "Just went on backorder" so she had no idea as to when it would be coming in and would have to check with their engineers to find out. Engineers? She didn't offer a replacement product or any other solution other than to wait to hear back from the engineers.

The card was OK, but when it failed I lost everything on it. Now I'm waiting longer than I should have to for a replacement. What good is a warranty if you can't replace a defective product? I'm not a happy man.

See all 184 customer reviews...More...

Kingston Digital 32 GB SDHC/SDXC Class 10 UHS-1 Flash Memory Card 30MB/s (SD10V/32GB)

Kingston Digital 32 GB SDHC/SDXC Class 10 UHS-1 Flash Memory Card 30MB/s (SD10V/32GB)..

GET Kingston Digital 32 GB SDHC/SDXC Class 10 UHS-1 Flash Memory Card 30MB/s (SD10V/32GB) By Kingston

Most helpful customer reviews

60 of 62 people found the following review helpful.
Decent card at a great price, missing very little
By Accountability
Although the file system may prove confusing to many at first, this card is one of the closest things you can get to a mini-SSD (tiny non-moving hard drive) for at or under ~$100 (less on sale).

I decided to write a review here because many other reviews didn't mention a few critical pieces of information.

First and foremost, this card does support alternate file systems. Out of the box, if you don't have at least Windows XP SP1 (with update KB955704) on your PC, OSX 10.6.4 on your mac, and the "SDXC" logo on your camera or device, this card may not be recognized properly in its native exFAT filesystem, and your various computers and devices may not be able to format it in a way that is compatible with your other devices. If you format the card with NTFS, it will work on older Windows systems (and UNIX-based machines with ntfs-3G or FUSE-ntfs). If you format it with FAT32, however, it will work on almost every device I tested, even those which claim to support the SDHC (32GB max) standard. This is because there are basically no physical differences between older SDHC cards and these newer SDXC cards except for their capacity. Additionally, this means if you format the card with FAT32 on a compatible computer, you can use it in almost every camera, computer, or device that supports 4GB cards. That's right, when formatted to FAT32, I've tested it in a couple of devices that advertised a maximum capacity support of only 4GB, and it still played well with all the other old devices too!

Compatibility aside, the speed of the card deserves note. All cards are internally printed on different wafers of NAND (that's the actual flash memory inside these chips), so results may differ slightly especially in terms of small cluster random writes, but with my system and reader I have benchmarked sustained write performance of 16.4MB/sec and sustained read performance of 42.6MB/sec. If the "class" system were to be expanded, this card would therefore be closer to a "Class 16 card" in write performance and/or over a "Class 42 card" in read performance. I tested this on the built-in card reader in my 2011 Dell laptop, so if anything, these figures are conservative and you may experience higher transfer speeds on a dedicated USB 3 SDXC reader.

I've used many Kingston products over the years, and most if not all have been virtually problem-free. This card lives up to the trend. (Yes, I've used a lot of SD cards!) For better or for worse, this means I cannot comment on the warranty, since I've never once had to use it.

The only reason for deducting one star is lack of UHS-1 controller support at this capacity and price, so it does not explicitly take advantage of the faster 104MB/sec bus speed or 1.8V low-power operation mode. It is not consistently the cheapest card in this capacity, nor is it the fastest or "lowest power" to use (yes, this may become important when your whole device operates in the mW range). For most, the distinction is next to nil, but I found it worth mentioning regardless. In sum, although it strikes an excellent balance, it is still a tiny bit lacking in other technical regards.

26 of 28 people found the following review helpful.
Worked for awhile, then quit
By Amazon Customer
I bought this card in March of 2013. By May, the card would not function in my tablet. After reformatting it, it still resulted in continuous I/O errors. Unfortunately Amazon would not return this item because it was out of their 30 day window. Buyer Beware!
A followup: I was initially frustrated, but Kingston's lifetime warranty was honored very professionally by the Kingston company. I mailed them back my card and they sent a new one that has worked perfectly thus far. Therefore I am raising my rating to 3 stars. If it works for an extended length of time, I will raise it again because of the excellent customer service.

11 of 11 people found the following review helpful.
Slower than expected
By AdamDZ
Rather slow for a Class 10 card. It writes 11MB/s and reads 22MB/s. My other card is 64GB SanDisk, also Class 10, and it writes 20MB/s and reads 45MB/s. I bought this to have some extra storage in my MacBook Air and it's a perplexing choice: less storage, but quicker, or more storage but slower. BTW, test results were the same on the Air and my Dell Latitude regardless of the filesystem.

See all 147 customer reviews...More...

Kingston Digital 64 GB SDHC/SDXC Class 10 UHS-1 Flash Memory Card 30MB/s (SDX10V/64GB)

Kingston Digital 64 GB SDHC/SDXC Class 10 UHS-1 Flash Memory Card 30MB/s (SDX10V/64GB)..

Buy Kingston Digital 64 GB SDHC/SDXC Class 10 UHS-1 Flash Memory Card 30MB/s (SDX10V/64GB) By Kingston

Most helpful customer reviews

60 of 62 people found the following review helpful.
Decent card at a great price, missing very little
By Accountability
Although the file system may prove confusing to many at first, this card is one of the closest things you can get to a mini-SSD (tiny non-moving hard drive) for at or under ~$100 (less on sale).

I decided to write a review here because many other reviews didn't mention a few critical pieces of information.

First and foremost, this card does support alternate file systems. Out of the box, if you don't have at least Windows XP SP1 (with update KB955704) on your PC, OSX 10.6.4 on your mac, and the "SDXC" logo on your camera or device, this card may not be recognized properly in its native exFAT filesystem, and your various computers and devices may not be able to format it in a way that is compatible with your other devices. If you format the card with NTFS, it will work on older Windows systems (and UNIX-based machines with ntfs-3G or FUSE-ntfs). If you format it with FAT32, however, it will work on almost every device I tested, even those which claim to support the SDHC (32GB max) standard. This is because there are basically no physical differences between older SDHC cards and these newer SDXC cards except for their capacity. Additionally, this means if you format the card with FAT32 on a compatible computer, you can use it in almost every camera, computer, or device that supports 4GB cards. That's right, when formatted to FAT32, I've tested it in a couple of devices that advertised a maximum capacity support of only 4GB, and it still played well with all the other old devices too!

Compatibility aside, the speed of the card deserves note. All cards are internally printed on different wafers of NAND (that's the actual flash memory inside these chips), so results may differ slightly especially in terms of small cluster random writes, but with my system and reader I have benchmarked sustained write performance of 16.4MB/sec and sustained read performance of 42.6MB/sec. If the "class" system were to be expanded, this card would therefore be closer to a "Class 16 card" in write performance and/or over a "Class 42 card" in read performance. I tested this on the built-in card reader in my 2011 Dell laptop, so if anything, these figures are conservative and you may experience higher transfer speeds on a dedicated USB 3 SDXC reader.

I've used many Kingston products over the years, and most if not all have been virtually problem-free. This card lives up to the trend. (Yes, I've used a lot of SD cards!) For better or for worse, this means I cannot comment on the warranty, since I've never once had to use it.

The only reason for deducting one star is lack of UHS-1 controller support at this capacity and price, so it does not explicitly take advantage of the faster 104MB/sec bus speed or 1.8V low-power operation mode. It is not consistently the cheapest card in this capacity, nor is it the fastest or "lowest power" to use (yes, this may become important when your whole device operates in the mW range). For most, the distinction is next to nil, but I found it worth mentioning regardless. In sum, although it strikes an excellent balance, it is still a tiny bit lacking in other technical regards.

26 of 28 people found the following review helpful.
Worked for awhile, then quit
By Amazon Customer
I bought this card in March of 2013. By May, the card would not function in my tablet. After reformatting it, it still resulted in continuous I/O errors. Unfortunately Amazon would not return this item because it was out of their 30 day window. Buyer Beware!
A followup: I was initially frustrated, but Kingston's lifetime warranty was honored very professionally by the Kingston company. I mailed them back my card and they sent a new one that has worked perfectly thus far. Therefore I am raising my rating to 3 stars. If it works for an extended length of time, I will raise it again because of the excellent customer service.

11 of 11 people found the following review helpful.
Slower than expected
By AdamDZ
Rather slow for a Class 10 card. It writes 11MB/s and reads 22MB/s. My other card is 64GB SanDisk, also Class 10, and it writes 20MB/s and reads 45MB/s. I bought this to have some extra storage in my MacBook Air and it's a perplexing choice: less storage, but quicker, or more storage but slower. BTW, test results were the same on the Air and my Dell Latitude regardless of the filesystem.

See all 147 customer reviews...More...

SanDisk Ultra 64GB SDXC Class 10/UHS-1 Flash Memory Card Speed Up To 30MB/s, Frustration-Free Packaging- SDSDU-064G-AFFP (Label May Change)

SanDisk Ultra 64GB SDXC Class 10/UHS-1 Flash Memory Card Speed Up To 30MB/s, Frustration-Free Packaging- SDSDU-064G-AFFP (Label May Change)..

Grab Now SanDisk Ultra 64GB SDXC Class 10/UHS-1 Flash Memory Card Speed Up To 30MB/s, Frustration-Free Packaging- SDSDU-064G-AFFP (Label May Change) By SanDisk

Most helpful customer reviews

67 of 71 people found the following review helpful.
Great read , but mediocre write
By Sushi Roll
I purchased the 32gb version . Its spacious and has great read speeds but the write speed is mediocre compared to my AmazonBasics 16gb microsd that gets 24MBps read and 22MBps write
Using a Transcend USB 3.0 card reader I get
On ATTO 45MBps read ; 14 MBps write
and on CrystalMark 45MBps ; 13 MBps write

352 of 401 people found the following review helpful.
I am dispointed
By Wei
I have this Sandisk Ultra 32GB class 10 30MB/s SD card. I have to say I am totally dispointed. It's SLOOOW. I did two speed tests.

First test was performed on a computer using a software named "CrystalDiskMark". I ran the test with 3 different SD cards on the same pc with same equipments and same setting.
Results:
Sandisk Ultra 32GB class 10 30MB/s SD card, Read 19.93MB/s and write 11.99MB/s.
Sandisk Extreme III 4GB class 6 SD (5 year old card), Read 18.67MB/s and write 16.67MB/s.
Transcend 16GB class 10 SD (8 month old), Read 18.74MB and write 17.25MB.

Second test was performed on Canon T3i DSLR with the same 3 SD cards tested above. In this test I set my DSLR to burst mode and TV mode with 1/50 sec. Within 30 seconds interval, I want to see how many pictures in RAW format my camera can shoot.
Results:
Sandisk Ultra 32GB class 10 30MB/s, 24 shots.
Sandisk Extreme III 4GB class 6, 34 shots
Transcend 16GB class 10, 33 shots.

Conclusion:
As you can see this Sandisk Ultra card havs higher read speed. I belived my card reader is max out at 20MB/s. that's why it show 19.9MB/s read speed. However for a digital camera and camcorder, the write speed is more important than the read speed. Both tests clearly show that the Sandisk Ultra only meets class 10 rating but far behind the other two cards. The cheaper Transcend card can outperform this ultra card easily in write speed.

58 of 68 people found the following review helpful.
Excellent card, but misleading.
By Roger
I am giving this memory card a 5 star review because it is sufficient for virtually all HD video needs. I can record at 1080p @ 30 fps on my Canon T3i with absolutely no issues, however the speeds I received when benchmarking were nowhere near 30 mbps. For sequential read I got 18.70 MB/S and for write I got 11.75 MB/S. Now I know its advertised as up to 30 mbps reads. But I feel it may be misleading. However since it fulfills all my demands perfectly I will give it 5 stars.

See all 1329 customer reviews...More...