Strontium Nitro 566X 64GB MicroSDXC UHS-1 Memory Card with Adapter and Card Reader

One of the best cards I have seen for this price range.Available Space : 60 GBReal life test :12 MP RAW files - 0 LagYi Camera FHP 60 FPS Bitrate : ~ 24MbpsBenchmark (With provided USB adapter in USB 3.0 Port) :-----------------------------------------------------------------------CrystalDiskMark 5.0.2 x64 (C) 2007-2015 hiyohiyoCrystal Dew World : http://crystalmark.info/-----------------------------------------------------------------------* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]* KB = 1000 bytes, KiB = 1024 bytesSequential Read (Q= 32,T= 1) : 23.096 MB/sSequential Write (Q= 32,T= 1) : 17.303 MB/sRandom Read 4KiB (Q= 32,T= 1) : 4.853 MB/s [ 1184.8 IOPS]Random Write 4KiB (Q= 32,T= 1) : 1.729 MB/s [ 422.1 IOPS]Sequential Read (T= 1) : 22.439 MB/sSequential Write (T= 1) : 16.144 MB/sRandom Read 4KiB (Q= 1,T= 1) : 3.406 MB/s [ 831.5 IOPS]Random Write 4KiB (Q= 1,T= 1) : 1.242 MB/s [ 303.2 IOPS]Test : 100 MiB [G: 0.3% (0.2/60.0 GiB)] (x1) [Interval=5 sec]Date : 2015/10/29 19:43:47OS : Windows 7 Home Premium SP1 [6.1 Build 7601] (x64)Comparing with-----------------------------------------------------------------------CrystalDiskMark 5.0.2 x64 (C) 2007-2015 hiyohiyo-----------------------------------------------------------------------* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]* KB = 1000 bytes, KiB = 1024 bytesSequential Read (Q= 32,T= 1) : 22.806 MB/sSequential Write (Q= 32,T= 1) : 11.849 MB/sRandom Read 4KiB (Q= 32,T= 1) : 5.100 MB/s [ 1245.1 IOPS]Random Write 4KiB (Q= 32,T= 1) : 1.907 MB/s [ 465.6 IOPS]Sequential Read (T= 1) : 22.233 MB/sSequential Write (T= 1) : 12.374 MB/sRandom Read 4KiB (Q= 1,T= 1) : 3.733 MB/s [ 911.4 IOPS]Random Write 4KiB (Q= 1,T= 1) : 1.500 MB/s [ 366.2 IOPS]Test : 100 MiB [G: 18.8% (2.8/14.8 GiB)] (x1) [Interval=5 sec]Date : 2015/10/29 19:52:02OS : Windows 7 Home Premium SP1 [6.1 Build 7601] (x64)

Nice

Excellent I/O speed.Please understand its (85MB/s) minimum guaranteed I/O...Its keeps up its gurantee but does not mean u will have the same speed, read below and try to understand ...I am v happy with this product....Does what it states.... IIf any one who know or has designed an OS Kernel will understand that speed varies always, due to many factors.- See belowSo any review of stats/figures of the I/O i.e. read write speed is misleading and untrue while its true at the same time. :)Imagine your processor+RAM+Cache memory is overloaded with many processes running + at the same time you have a spindle drive at 5200 RPM. So you used this SD card to copy to/ or from. Naturally it will be slower.While at the same time if ur computer-had superb processor with free resourses for execution with excellent cache memory, ram and SSD hard disk with excellent transfer rate. You will get the benefits of the high I/O capacity of the SD card.Other factors---File system type and sector sizes, File size ur copying, Device driver for the SD card reader, Buffer management system etc etc..Imagine u had excellent processor, ram, ssd, but some small bug in the SD card reader device driver which delays the I/O pipe (pipe is a process) then u lost the benefit.Same analogy applies to phone or camera etc (its a computer too, just with a different software and extra hardware---its digital electronics)Newtons law applies :)

Just died on me suddenly. No warning nothing. Just stopped working one day and took all my data along with it. Good bargain but at what cost?

Pros:Card reader and adapter comes in really handy if you want to transfer data using a computer.You can use the card reader as a USB flash drive / pen drive.The card is pretty fast. So Full HD video capture is lag free on the phones.Used this card for 4K capture on a GoPro Hero 4 and faced no issues.Cons:USB card reader / adapter is not USB3.0. So read/write speeds on a computer are not so great.Bought this for Xiaomi Redmi 3S Prime. Works pretty well. Available storage is 63.90GB as expected.Android users should first insert the card in the phone / tablet and format it first in the device.Only then should you use the card reader or adapter to put data in the card through a computer.Never format the card first in the computer or else the card won't be recognised by your phone / tablet.

I am using coopad which supports 64 gb sd.so i bought this item, first the card was showing sd card blank or unsupported system file i tried formating it but it was not working on my phone (only ntfs and i ext format was available) so i applied for refund and amazon responded immediately by arranging the pickup for next day but before returning the item i tried to format it with FAT32 and the result was clear it started working .so if anyone facing the same issue just format the card with FAT32 formating tool and it will start working .transfer speed is good as mentioned and available space is 60 GB.

I ordered this with fears of getting low speed and compatibility issue also after reading some reviews that says stopped working etc.Buy when i insterted this (strontium 64GB nito 566X) in Oneplus X. shows the available space of approx 60GB. (All my fears gone ;))Now the main concern is, it read and write speed.Well i copied one file from internal to memory card (800 MB) it takes 26 secs. This is very good if i compare to my old sandisk class 10 (it tooks approx 55 sec)I am very satisfied till date no problem and card reader is also very great quality.Box contents -1 Strontium Nitro 566X 64GB2. USD card reader.3. Microsd card reader.Conclusion -Go for it without thinking and also always choose the seller with great ratings this reduces the chances of getting counterfeit products. Mine is Genuine :).

Attention, la carte est vendu non formatée. Donc 1ère chose, la formater.2ème chose elle n'affiche que 59,1 Go au lieu de 64 Go. Je sais bien que normalement, nous n'avons pas réellement la capacité affiché, mais 5 Go de perdu, c'est presque 10%, c'est beaucoup. Une partition est indiqué not ready par mon partitionneur, les quelques Giga manquants sont surement là. J'espère pouvoir les récupérer avec Active Partition Recovery.

I use this for my GoPro Hero 4 and it works great. When it comes to SD cards, they're all going to work, but some may get corrupted sooner than others. I've been using this one for about 3 months and it's fast. It lost a star because it gets stuck in the USB adapter every time i put it in there. It takes me a good 3 minutes to dig it out which is very annoying. But it all works and the USB adapter is quite convenient.

Good

Perfect and works great with my phone. No issues at all. Its quite fast when copying stuff to it. Compared to my old samsung microsd 64gb this is way much better. my old card started giving me issues so i just switched to this card and no more issues since then.

The USB card reader is a useful little device but the microsd card itself is physically larger than my other microsd cards and and fits so tightly into the card reader it can only be removed with pliers! I haven't dared put it into my tablet in case I can't get it back out again.