Patriot PSF64GMCSDXC10 LX Series 64GB High Speed Micro SDXC Class 10 UHS-I Transfer Speeds For Action Cameras, Phones, Tablets, and PCs

Bought this product twice now, and it works perfectly fine. I use it mainly for handheld consoles and it meets all expectations.

I have a bit of experience with storage of various types and I also do Android development. So despite the reviews to the contrary, I decided to purchase one of these cards for my new Galaxy S III since I really like Patriot for their RAM. I have had absolutely zero problems with this card. The performance is excellent and, so far, I have had absolutely no problems with reliability. I am storing application data for development on the card as well as a lot of miscellaneous files (ebooks, music, photos, et cetera). Just make sure to verify that your device is SDHC compatible before purchase and format the card before you use it. Details follow.I did consider the card's negative reviews and came up with a possible explanation. I decided that I was okay with possibly not having a working card at this price point. My hypothesis was as follows: It is possible that Patriot has an anomaly in the factory formatting that is causing a problem. I thought that this was a reasonable hypothesis as formatting issues can cause the symptoms described, with special emphasis to locking up, slow performance and crashing. I have had issues with the factory formatting on flash drives and other media from various manufacturers before and have since made it a practice to format all media before use. I figured it was worth a go. I formatted my card before inserting it into my phone and then formatted it on the phone through the storage settings. I have not had any issues and the card has been installed for about two weeks now. In my experience, tech problems related to defects in or other issues with new hardware, like compatibility, usually arise within 72 hours so I think I am probably past the threshold of issues. So, the solution appears to be as follows: format the card before trying to use it. Do this on your computer first to destroy the factory formatting and then once again on the Android phone to make sure the formatting is correct.IN ADDITION, make sure that your phone or other device can support at least a 32GB card and works with SDHC (in before SDHC being the same as regular SD, there is a slight hardware difference in more recent version of the SDA specification); SDXC devices are okay as well. If you device does not support at least a 32GB capacity card and SDHC or SDXC, you will probably have issues. I have verified that this card works in the Galaxy S III (Android 4.0.4 at the time of writing) but it is possible your mileage may vary. As a side note, the Galaxy S III can work with SDXC cards up to 64GB.I also need to debunk a bit of recurring disinformation. A few reviewers state something along the lines of "the manufacturer even says that this card doesn't work with my __________". I was skeptical of this so I went to Patriot's website and read the entire product site on this card. I did not find any material from Patriot of the sort, in fact, the information they do have supports my hypothesis that this is not a hardware problem specifically because the card "Complies with [the] SDA 3.0 specifications". This means that from a hardware perspective, if you have a device that supports SDHC (and is compliant, to be precise) then there is no reason this card should not work unless, of course, you received a defective card but Patriot gives you a 5 year warranty so that really isn't a problem. The problems people have been having are probably software based or they do not actually have compatible devices.In conclusion, For a 32GB class 10 card, this is a pretty awesome deal with the price Amazon is selling it for. Contrary to other user experiences, I trust Patriot's build quality and never actually doubted that the card would work but, nevertheless, decided to investigate the problem some.Card website: [...]Spec sheet direct link: [...]SD Association Card Formatter: [...] Use the "Overwrite Format" option in this application or your favorite operating system's formatting application. Then reformat the card on your Android device through the Storage settings.A small note on classes. The class number of the card denotes the card's sustained write speed. Class 10 cards are really designed for video, audio and photo usage as having a high speed card helps those devices record better (in a nutshell). I use class 10 cards in my DSLR specifically because the photo gets written faster so I don't have to wait as long between photos. This is good for high speed shooting but it is definitely overkill for an Android phone.If you still have apprehensions about this card, I have also had good experiences with the following manufacturers' flash memory in one product or another (in no particular order): Kingston, Samsung, Sony, Toshiba, OCZ, PNY, Corsair and SanDisk. That is all that comes to mind now. I do highly recommend PNY, OCZ and Corsair in addition to Patriot.

Item is as advertised. It really is a Patriot LX 128gb Class 10 microSDXC card. Did tests using H2TESTW v1.4 by Harald Bögeholz and FAKEFLASHTEST v1.1.1 by RMPrepUSB. Results at the bottom of the review. I recommend always running these tests when you purchase flash memory (usb, sd, etc).Otherwise, this is an excellent bang-for-buck item, roughly 0.31$/gb (at the time of this writing, compared to other capacities ranging from 0.28-1.25$/gb). And come on, who doesn't want >100gb on their phone?Just to reiterate, this is NOT A FAKE FLASH DRIVE as you may have stumbled across at least one by now. Admittedly, sometimes legitimate production lines have some defective units which should be RMA'd. But this particular one I got was good. The capacity and average read/write speeds fall within tolerance and exceed some specs.Also, I have tested this on 2 different platforms (Windows and Linux), as well as on my phone which is not rated for capacities above 64gb (Samsung Galaxy Note 2, T-Mobile variant sgh-t889).I have been using it for over two weeks on said phone without a hitch. Before this one, i had a 64gb Patriot Class 10 that performed flawlessly for well over a year. Needless to say, I'm extremely happy with the Patriot brand of SD cards (and, off topic, their RAM).Here are the test results:Warning: Only 122169 of 122170 MByte tested.Test finished without errors.You can now delete the test files *.h2w or verify them again.Writing speed: 14.9 MByte/sReading speed: 16.1 MByte/sH2testw v1.4//////////////////////AND///////////////////FAKEFLASHTEST v1.1.1 [SSi]DRIVE 5 - 119.3GiB Generic- SD/MMCFFT - Quick Size Test (destructive)G: (no label) DRIVE 5 - 119.3GiB Generic- SD/MMCWriting marker blocks to drive 55% complete - 7 min 17 sec remaining10% complete - 6 min 54 sec remaining15% complete - 7 min 28 sec remaining20% complete - 8 min 16 sec remaining25% complete - 8 min 54 sec remaining30% complete - 7 min 33 sec remaining35% complete - 6 min 45 sec remaining40% complete - 6 min 18 sec remaining45% complete - 6 min 7 sec remaining50% complete - 5 min 58 sec remaining55% complete - 5 min 3 sec remaining60% complete - 4 min 18 sec remaining65% complete - 3 min 48 sec remaining70% complete - 3 min 24 sec remaining75% complete - 3 min 5 sec remaining80% complete - 2 min 23 sec remaining85% complete - 1 min 45 sec remaining90% complete - 1 min 11 sec remaining95% complete - 0 min 37 sec remaining100% complete - 0 min 1 sec remainingReading back marker blocks...5% complete - 0 min 19 sec remaining10% complete - 0 min 18 sec remaining15% complete - 0 min 23 sec remaining20% complete - 0 min 20 sec remaining25% complete - 0 min 18 sec remaining30% complete - 0 min 19 sec remaining35% complete - 0 min 17 sec remaining40% complete - 0 min 15 sec remaining45% complete - 0 min 15 sec remaining50% complete - 0 min 13 sec remaining55% complete - 0 min 12 sec remaining60% complete - 0 min 10 sec remaining65% complete - 0 min 10 sec remaining70% complete - 0 min 8 sec remaining75% complete - 0 min 7 sec remaining80% complete - 0 min 6 sec remaining85% complete - 0 min 4 sec remaining90% complete - 0 min 3 sec remaining95% complete - 0 min 2 sec remainingTest took 799 seconds.Device quick test was OK *** PASSED ***NOTE: Drive filesystem has been erased - please partition and format it, and then test with H2TESTW for thorough test.INFO: This device is classed as a Removable Disk by Windows.Unplug and re-connect the drive, then reformat it using Windows or RMPrepUSB.

Muy bueno producto. Cumple con sus funciones.Viene bien empacado y junto un adaptador para conectar la tarjeta en la computadora.

2020/03/04特に問題は無く、普通に使えています。A1は速く、スマホに向いていると思います。スマホで使用中。128GBも同時購入しているが、こちらも問題なく使用しています。確か、同社のPC用メモリも使用していた事がありますが、問題なく使えてました。そのような実績もあり、今回はMicroSD32GB＆128GBを購入した訳であります。スマホの機種は、中華製格安製品2台です。相性等心配でしたが、問題なく認識し、問題なく外部ストレージとして使っています。70歳の爺ですが、全然大丈夫でした。(笑)※但し、私的感想であり、商品をお勧めするものではありませんので、どうかご理解下さい。

最安値のメーカーが分かるＶ10クラスを探していてたどり着きました。十分な書き込みスピードがあったので満足しています。1年もてば★★★★★に変更したいです。

※追記※当方はGadget Lifestyle Japan 様から購入しております。私見はありますが、推測の域を出ませんので購入検討の方は購入先をよくご検討の上、参考として当方の検証結果をご覧頂ければと思います。当方はメイン携帯端末のXperia XZ Premiumにて現役で使用中(2018/4～7月末現在)ですが、特に問題は生じておりません。※追記ここまで※PCでの測定結果 NUC6i7KYK+SanDisk SDDR-399-J46Bで測定(2回測定環境を速い環境に変更)：-----------------------------------------------------------------------CrystalDiskMark 6.0.0 Shizuku Edition x64 (UWP) (C) 2007-2017 hiyohiyo Crystal Dew World : https://crystalmark.info/-----------------------------------------------------------------------* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]* KB = 1000 bytes, KiB = 1024 bytesSequential Read (Q= 16,T= 1) : 99.240 MB/sSequential Write (Q= 16,T= 1) : 76.042 MB/sRandom Read 4KiB (Q= 8,T= 8) : 5.012 MB/s [ 1223.6 IOPS]Random Write 4KiB (Q= 8,T= 8) : 4.096 MB/s [ 1000.0 IOPS]Random Read 4KiB (Q= 32,T= 1) : 5.042 MB/s [ 1231.0 IOPS]Random Write 4KiB (Q= 32,T= 1) : 4.141 MB/s [ 1011.0 IOPS]Random Read 4KiB (Q= 1,T= 1) : 4.736 MB/s [ 1156.3 IOPS]Random Write 4KiB (Q= 1,T= 1) : 3.868 MB/s [ 944.3 IOPS]Test : 1024 MiB [D: 0.0% (0.0/232.2 GiB)] (x5) [Interval=5 sec]Date : 2018/04/06 19:08:14OS : Windows 10 Professional [10.0 Build 17133] (x64)スマートフォンでの測定結果(AXON7,A1SDBench測定)：読込:76MB/sec書込:46MB/sec※Xperia XZ Premiumでも試しましたが、上記より遅い結果でした。Xperiaの方は測定結果のバラつきが大きいので再測定すると変化するかもしれません。(Samsung EVO+ 256GBでもバラつきました。)Amazon記載の公称速度(読込速度90MB/sec、書込速度80MB/sec)とほぼ同等の速度が環境によっては出る事を確認しました。(2回測定環境を変えています。)ただパッケージには読込速度90MB/sec、書込速度30MB/secとあるのでこの点で言えば公称以上の性能があるとも言えます。参考までにSD Insight読みではメーカーがPhison製でした。これは他のレビュワーの方の結果と同様です。PatriotはPCメモリDRAMでも長年の実績あるメーカー(Micron、Samsung、Hynixのような直接のDRAMメーカーではないですが)です。Phisonも近年のエントリークラスSSDコントローラーでの採用例も多く、SATA3接続ではS10やS11が、M2接続ではPS5007-11辺りを使用した製品がよく見られます。性能はエントリークラスにしては高めと言え、総じてコストパフォーマンスに優れた商品が多いです。どちらも一般的には有名ではないのかもしれませんが、自作PCをかじっている方にはよくご存じのメーカーではないでしょうか。上記のような性能、素性から満足できる良い商品でした。

購入してから数ヶ月経ちますが特に問題なく作動してます。素人なので細かいことはわかりませんが普通でしょうかねぇ