Kingston Digital 64 GB microSD Class 10 UHS-1 Memory Card 30MB/s with Adapter (SDCX10/64GB)

Works great with flipper zero

I have the HTC EVO 3D which is a fantastic Android phone. When 64GB cards became a bit more affordable, I got the SanDisk version since they are a brand I know well and I had read postings online that the EVO 3D would work with 64GB cards, even though the specs say 32GB max. I had no problem with the card until my storage went over 32GB. Then the card kept unmounting itself, not allowing me to install apps on it, etc. After some digging online I found that SanDisk made the new ex-FAT file format mandatory for their card, and most mobile devices don't work well with the new format. I tried several 3rd party card formatting apps but they all failed to break the format stranglehold SanDisk put on its card. But Kingston's card can be formatted to FAT32 using Windows, and it works fine. More that 32GB of stuff on it, and working like a charm. In FAT32 format the max file size is 4GB, so some HD movies may be too big, and supposedly the format makes the card a bit slower, but I don't notice any problems with HD video playback from this card after reformatting it to FAT32. Also, the FAT32 format steals 4GB of space from the card, but that still leaves 60GB which is plenty. I'm sorry to have an expensive SanDisk memory card sitting around without any current use for it, but glad I can still use my EVO 3D with plenty of storage. Thanks Kingston for staying flexible!

Having just purchased a Microsoft Surface Pro tablet, a tablet with real muscle and speedy i/o system, I assumed I would want to expand the 128GB of onboard storage, so I selected the Kingston 64GB MicroSDXC flash card.Amazon shipped it right away, and within a minute of receiving it, it was mounted in the tablet and immediately recognized. It fits smoothly and flush into the right side of the surface pro, and looks like part of the case.As with most SDXC cards, it comes factory formatted with ExFAT, and has 63,333,597,184 bytes available (about 58.9GB).Curious about the performance, I ran AS SSD, and clocked sequential speeds at 13.6MB/sec writes, 33.42MB/s reads. It is much speedier than an older MicroSDHC card I also tried (8GB class 6, 10.88MB/sec write, 15.95MB/sec read). It is significantly slower than the wicked fast SSD in the Surface Pro (252.33MB/sec write, 471.31MB/sec read), but exceeded my expectations for a Microsdxc, and more than adequate for bulk storage on this tablet.In my older laptop (Lenovo x201), it benchmarks at a meager 10.7MB/sec write, 18.92MB/sec read, limited by the design of the laptop.A buck a gig, good performance, nice bulk storage accessory for the Surface Pro. As long as it remains reliable, it is recommended by this reviewer.

I was looking for a good 64GB microSD card to use for my smart phone and tablet. This Kingston brand more than qualifies for the part and completely satisfies my mobile storage needs.This card boasts Class 10 speeds (10MB/sec) and certainly feels fast enough. I am unable to test the read write speeds myself, but I have researched and found people reporting read speeds of 20MB/s and write speeds of 11MB/s.I have tried the following things with my smart phone with the microSD card mounted in:* Viewed the initial storage amount without formatting (straight out of the box)- My phone showed 59.9 GB of total storage available on the card. I did not have to format it before using it.- After formatting it, the phone now only reads a curiously smaller amount of 59.01 GB of total storage available. Not sure why it shrunk. I only formatted it using the phone to see what would happen.* Moved folders filled with music, pictures, and video from internal phone storage to microSD card- Obviously took some time, but not any longer than expected* Viewed pictures and video stored on the microSD card- Maybe little lag when loading picture thumbnails, but difference felt negligible* Took a bunch of photos in rapid succession, took a video in 1920x1080- Saving to internal storage or microSD showed no difference in performance* Played music from microSD card- No difference in performanceYou can't go wrong with this card, but I feel that the price is a little too high when compared to the competition (e.g. Sandisk). There are other cards that claim speeds of up to 30MB/s and cost less than this card at this time. I chose the Kingston primarily because of an Amazon Lightning deal that temporarily offered it at a lower cost. Otherwise with the Kingston at its current higher price, other options look more appealing.Packaging is small and easy to open. Comes with a full size SD card adapter.

great

It is what it is purported to be and on sale the price was attractive. The memory chip works fine and seems fast to me. I don't know how to formally test read/write speeds on memory chips so I can't vouch for it meeting its specs, but it works perfectly in my cell phone and I notice no lag in using this chip vs. the internal phone memory. If your requirements for speed are more critical to your application than you should read the more technical reviews, if your use is just for pictures of files I highly recommend this chip as a good value when it is on sale.

I am using HTC Diamond 2 with WM 6.5. That phone is one of the last produced models that I personally find usable, and the only thing I wanted to "improve" was upgrading its MicroSD card from the documented maximum of 32 GB to something like 64 GB (the collection of audio recordings that I prefer to carry with me takes roughly 40GB). In the past I tried SanDisk 64GB MicroSDXC, and that didn't work: of course, I could format it to FAT32 and the card was recognised by the phone, but the performance was unacceptable (the card was getting unresponsive for roughly 1.5-2 minutes once every 8-10 minutes).I decided to give it one more try, this time with Kingston. Apparently, it worked! The card seems to be as dependable as my previous 32 GB, and even feels faster (though in this case I don't care too much about speed).