256GB A1 / V30 Micro SD Card for Android Phones and Tablets, 4K Video Recording PEF256GEP31MCX

I received this 128 GB Patriot Micro SDXC card yesterday and then I immediately tested it in my Macbook using h2w test program for checking the storage capacity and average write and read speeds. The test results were all good and the storage capacity is correct as stated (nearly 128 GB as marked on the card, 125.07 GB as reported by Mac Disk Utility and a Free Space of GB 116.48 as reported by h2w test progaram) and is acceptable. The average write speed is 18.9 MB/sec and the average read speed is 90.73 MB/sec. I am using it for Video Storage from a indoor survaillance camara and installed it in a Home Hub. This card is now working good in the Camera / Hub as expected. I chose this Patriot brand after having a bad experience of receiving a fake card of Sandisk brand from CLICKTECH RETAIL PRIVATE LIMITED sold on Amazon.in. The problem of the fake Sandisk card is storage capacity. It is marked as 256GB but is actually only 32GB and that too failed in 6 months of usage. I do not know the longetivity of this card as yet but I can say it is value for money as compared to other brands.

I was concerned if it would work properly, but it did. Actual space is 116GB, which is at par. Copying speed keeps varying between 7 - 23 MB/s, with average of about 12 MB/s on Windows 11 platform in my case. I wrote 106 GB on the card and it is able to handle that, so I'd say it is working fine.

Working as expected...

I have a samsung evo(white) 64gb card and now this 64gb one....both are A1 means better controller and no data loss but Samsung is U1 V10 and this patriot is U3 V30.....where patriot is more read write speed around 18MB/s because of U3 & V30 than Samsung around 15MB/s because of U1 & V10, but that Samsung's low speed is much more stable and stay consistent in that speed where this patriot is going up and down around 10-18MB/s sometimes even falling down to 4-8MB/s so yeah those higher specs can make you fool sometime.

The memory card at first was good actually the best I've bought so far with blazing 65-70MBPs Write Speeds Better than any smasung evo plus or sandisk ultra but within a month once i started transferring the card into a card reader it tunred write only so It's not usable for me as i can't write or delete nor format the card i tried everything in smartphone in computer all the method that are on the internet cmd ckhdisk etc nothing worked - what i can say is the card might be fast but lacks erorr correction codes and not very good maintenance software in it so i Don't think i can recommend it to anyone the card is fast for write i grant that but not reliable in a long run well the card just turned write protected within a month so who am i kidding i guess i would wait for the amazon sale and buy a branded card as non of my Samsung nor SanDisk card got write protected and I've used them interchanging into different devices only con they're slow to write but at least they're still alive and working

Good

great quality with faster read and write speed , you will get 250gb of space in this SD Card ,go for it

Very Good, Real U3 card, value for money . Speed is good. write speed 49/mbs.

I bought this 2-pack of Patriot 128GB microSD cards specifically for my CCTV cameras, and so far they’ve been completely reliable. First impressions were good — they feel like decent quality cards, not cheap or flimsy. I’ve had issues in the past with other budget brands where devices wouldn’t even recognise the card, but that wasn’t the case here. Both cards were detected straight away and worked without any problems after a quick format. In terms of performance, they’ve been solid. I haven’t experienced any lag, errors, or data corruption, which is exactly what you want for something like CCTV where reliability is important. Recording has been smooth and consistent with no issues so far. Storage-wise, I got around 116GB usable space, which is pretty normal and expected — you never really get the full advertised capacity, so no surprises there. The fact that it comes as a 2-pack was ideal for me since I needed cards for two cameras, and it works out well in terms of value. For the price, I think they’re definitely worth it. I’ve been using them for about a month now and haven’t come across any downsides so far. Overall, they’ve done exactly what I needed them to do without any hassle.

These were budget memory cards and thus expectations were not that high however they have exceeded my optomistic hopes and have performed faultlessly in external game cameras.

Väldig bra kvalitet.

Amazing memory stick. Transferring datas, pictures and videos very faster, I have used other brands but this tiny stick was fantastic highly recommend for your electronic gagets.

パトリオットはちゃんとした企業ではありますが念のためvalidriveで容量偽装チェック、問題なし。 使用開始から1か月経ちましたが今のところ読み込めない認識しない速度が出ないなどの不具合はなし。ただ耐久性は未知数。 電子書籍を大量に入れて使っています。 対抗馬はKIOXIAのEXCERIAでしょうかね。価格帯もほぼ同じ。ただこちらが最低書き込み速度30Mbpsでアプリケーションパフォーマンスクラス1（A1）なのに対し、あちらが10Mbpsでアプリケーションパフォーマンスクラスの表記なし、他の性能もこちらが上。 保証とサポートは日本製のKIOXIAの方受けやすく上なのでその辺で選択ですかね。 ちなみにこういった記憶媒体は消耗品で、書き込みできる回数が最初から決まっているため、それを超えると使用不可になります。なので防犯カメラなど長時間書き込みし続けるような用途で使用する場合には高価になりますが、防犯カメラ用を謳う高耐久モデルを購入しましょう。 追記 使用から6か月ほど経ちました。 2000冊強ある電子書籍を一覧で見たり、数百枚ある画像データをサムネ表示で見たりとSDに頻繁にアクセスするとスマホから勝手にマウントが解除され認識されなくなることが起こるようになりました。 ただデータ破損はないしスマホ再起動で認識するようになるし、別端末（タブレット）ではそういった問題はなく使用出来ています。スマホ側の問題か相性の問題のような気もしますが、一応。 2025年11月現在、価格が6000円を超えています。性能差があるので仕方ないとはいえKIOXIAとの価格差が2000円弱ほどあるので、安価さを重視するならKIOXIA一択になった感じですね。 2026年1月現在、価格が1万2000円を超えました。1年しないうちに約3倍になっています。この価格では他有名企業の高性能なものとほぼ変わらないので、残念ながらもう購入候補には入らないでしょうね。