Amazon claims that it has 80MB/s write speed, but Samsung's website says it's 50MB/s, who do I trust?
264671
Samsung has at least two versions of flash memory for this card. This grey card is the latest iteration and has different specs than the all black card you may have seen when searching for "Samsung Pro"here is samsungs website for this specific model of card:http://www.samsung.com/us/computer/memory-storage-accessories/MB-MG32DA/AM
264672
Here is my test result: MY PC CONFIGURATION (TEST SYSTEM) Operation system: Windows 7 Ultimate X64 Processor: AMD FX X8 8150 3.6 Ghz Mainboard: ASUS M5A97 R2.0 RAM: Corsair Vengeance DDR3 1600 Mhz 16 GB (2X8 GB) HDD: SanDisk SDSSDX120GG25 (SSD) Display Card: NVIDIA GeForce GTX 560 Ti (1024 MB) PC CASE: Corsair Carbide 400R I used USB 3.0 Card reader and USB 3.0 Port on case of course. CrystalDiskMark X64 results: Read: 79,72 MB/s, Write:70,60 MB/s ATTO Disk Mark results: Read: 77,582 MB/s, Write:70,271 MB/s I used 5-6 the other softwares and nearly same results. The card is not as fast as they said. It is your choice.
264673
It's really fast! I can squeeze off 100 30 megapixel shots and it keeps up no problem. It uploads them to my computer with equal speed. I don't have a radar gun, but these cards rock!
1051040
I agree with DeAngelo. Both Amazon and agents are scamming the public with changes to the orders. The posted website information says one thing, and the shipping information says another. In my case, the SanDisk III 30 MBs card was shown, however, the older card is being shown on the shipping statement. I will return the card if it does not match the original order of 30 MBs. I would expect Amazon to correct this immediately, so not to tarnish their image.
1961613
I've seen benchmark tests of various SD/SDHC cards and there do see to be speed differences according to brand. SanDisk is usually at or somewhere near the top so they're a safe bet.If you have an old SD card reader then you may well need to replace it. If you have documentation for the reader and it doesn't list being able to read cards above 2GB then it might be too old to support SDHC cards.
2013203
that is generally depicted by the quality of the flash device you are using. i have used a patriot usb that shows no serious speed improvement over usb2.0, and i have a Kingston that is faster than any usb flash ive seen. this card has been stable, reliable, and quite fast during my usage. (use at work in IT environment daily)
804013
I'm using the Samsung pro xc1. It has ver fast read and write speeds. I figured if I'm spending that much on a player why skimp on the card. I have been very happy with this card. It is the 64G
808149
As for the 8GB card over the 4GB card, there should be no significant difference in speed. As I noted above however speed may vary by production lot. I also suggest looking at the Tomshardware website as they have posted some good reviews and charts indicating speeds of various brands of cards.If you are purchasing the card here on Amazon, I suggest buying only the "direct from Amazon" card or you may wind up with a bogus card with very poor speeds. Other valid merchants include Adorama, BeachCamera, Abes of Maine, and B&H; Photo, some of which are listed in the Amazon Marketplace. Remember the addage "if it seems too good to be true...." As for the 8GB card over the 4GB card, there should be no significant difference in speed. As I noted above however speed may vary by production lot. I also suggest looking at the Tomshardware website as they have posted some good reviews and charts indicating speeds of various brands of cards.If you are purchasing the card here on Amazon, I suggest buying only the "direct from Amazon" card or you may wind up with a bogus card with very poor speeds. Other valid merchants include Adorama, BeachCamera, Abes of Maine, and B&H; Photo, some of which are listed in... » Read More As for the 8GB card over the 4GB card, there should be no significant difference in speed. As I noted above however speed may vary by production lot. I also suggest looking at the Tomshardware website as they have posted some good reviews and charts indicating speeds of various brands of cards.If you are purchasing the card here on Amazon, I suggest buying only the "direct from Amazon" card or you may wind up with a bogus card with very poor speeds. Other valid merchants include Adorama, BeachCamera, Abes of Maine, and B&H; Photo, some of which are listed in the Amazon Marketplace. Remember the addage "if it seems too good to be true...." « Show Less
1728454
I'm happy with the SSD, but I don't no the write speed compared with the original, for me is similar.
357275
Just got the 128GB version. Running Crystal Disk Mark 64bit - Sequential Read: 100.7MB/s Write: 100.8MB/s 512K read 25.2MB/s write: 57.11MBs 4K random read: 0.263MB/S write 0.943MB/s 4K random QD32 read: 0.457MB/s write: 0.694MB/s - Hope this helps everyone to decide!
391347
Yes 48mbps is pretty fast. I didn't use it for mac or S5 but I think it would probably work fine with them as memory cards work with all devices
1118907
I have this: 30 MB/S is printed on it, pretty fast. Purchased a SanDisk Extreme 80 MB/s for my new 70D also, but cannot sense the speed difference of the two cards in the camera.
2135102
They'll make it right for $70 plus shipping. I called they're customer service not expecting much from what I'd heard about how helpful their staff is, and they had no knowledge that there was an issue despite the hundreds of posts I've seen on tech websites websites (cdfreak, engadget, amazon). I'm buying Samsung next time.
243498
I bought the 64 gig card. However, Samsung tech support did give me an affirmative answer to that question, on a prior occasion.
862951
I got the SAMSUNG MicroSDXC 64GB PRO Class 10 UHS-I Card for the fast read/write speed (70/20mbs). Search for best price!
782787
Something is not right there. On a wired 1Gbps connection with a single copy I would expect at least 400Mbps, with speeds over 700Mbps on faster switches (efficient internal packet forwarding). That is from testing when I first received the unit (tested with 4 x 5200 RPM Toshiba 160GB in RAID 5, prior to 4 x 7200 RPM Seagate 750GB in SHR I have had in it since then - but I haven't tried that on a fast switch, my home switch seems to max about 500Mbps).For comparison, I've seen speeds close to single line speed (~900Mbps) on a DS713+/DX513 combo.If you are on WiFi, I would run hardwired tests for comparison. Then start troubleshooting your WiFi. Something is not right there. On a wired 1Gbps connection with a single copy I would expect at least 400Mbps, with speeds over 700Mbps on faster switches (efficient internal packet forwarding). That is from testing when I first received the unit (tested with 4 x 5200 RPM Toshiba 160GB in RAID 5, prior to 4 x 7200 RPM Seagate 750GB in SHR I have had in it since then - but I haven't tried that on a fast switch, my home switch seems to max about 500Mbps).For comparison, I've seen speeds close to single line speed (~900Mbps) on a DS713+/DX513 combo.If you are on WiFi, I... » Read More Something is not right there. On a wired 1Gbps connection with a single copy I would expect at least 400Mbps, with speeds over 700Mbps on faster switches (efficient internal packet forwarding). That is from testing when I first received the unit (tested with 4 x 5200 RPM Toshiba 160GB in RAID 5, prior to 4 x 7200 RPM Seagate 750GB in SHR I have had in it since then - but I haven't tried that on a fast switch, my home switch seems to max about 500Mbps).For comparison, I've seen speeds close to single line speed (~900Mbps) on a DS713+/DX513 combo.If you are on WiFi, I would run hardwired tests for comparison. Then start troubleshooting your WiFi. « Show Less
1795949
I just chatted with Samsung and they said the S03US has a 5400 rpm drive, but Amazon is showing 7200. All the other specs look the same. I did see some posts where the S)3US came with Windows 7 Pro instead of the Home edition. We'll have to see.
92120
To each his own. May I ask why? What are you doing with your phone that you would want a faster write speed?
72940
Mine says Korea. I know the best way of assuring your card is really what it is suppose to be, instead of a fake one, is doing the "H2testw 1.4 - Gold Standard In Detecting USB Counterfeit Drives" I tested mine using this and it passed. I bought a 32gb micro sd card from a different online site, and it showed up on computer as a 32gb sd, but actually tested as a 8gb card, so it was fake. Use your search engine for H2testw 1.4, and you should be able to access that for free...don't pay for it, it is suppose to be freeware.