SanDisk Ultra 256 GB microSDXC Memory Card with A1 App Performance up to 100 MB/s, Class 10, U1 - Amazon exclusive packaging

Used this in a phone, dash cam, and tablet—handles app installs, 4K video, and large file transfers without breaking a sweat. Speeds are solid for a Class 10 card, and it’s never glitched or corrupted data. Plug it in, format it, and it just works. Build quality’s decent—feels sturdy for a micro card, and it’s survived heat, cold, and a few drops. A1 rating means apps load quick and run smooth, especially on Android. Perfect for drivers, streamers, or anyone needing serious storage without the bulk. Minor gripe: not the fastest for pro-level video editing, but more than enough for everyday use. 👍 Pros ✅ Fast read speeds (up to 100MB/s) for smooth playback and transfers ✅ A1-rated for app performance—great for Android users ✅ Reliable in phones, dash cams, and tablets ✅ Huge 256GB capacity in a tiny form ✅ Durable and heat-resistant 👎 Cons ❌ Not ideal for high-end 4K video editing workflows ❌ No included adapter (depends on seller) ❌ Write speeds slower than top-tier U3 cards

I bought one of these from Amazon as a replacement after being sent a fake one from eBay. The one that arrived from Amazon is 100% legit and has worked in my Nintendo Switch perfectly with no issues whatsoever so from me it's 5 stars... however... Looking through other reviews, reading people's descriptions and seeing the pics people have posted I can confirm that people are recieving the same fake cards from Amazon that I recieved through eBay. I don't think this is on purpose by the seller as mine was legit so I think these fake ones have slipped through at some point. Some things to look out for if you do order a card and want to check the legitimacy of it: 1) The packaging they sent the fake card to me in is a white cardboard sleeve with a phone on the front next to the green android robot (an example photo has been uploaded by another customer in their review for reference). Look thoroughly at the image of the phone. Is it blurry? If so then it's fake. 2) look at the card itself. Does the grey part of the card look really dark? And does the red part look like a painted layer on top of the grey part leaving a nanometre of a bump between both colours? If the answer is yes, it's a fake. 3) is the card a tight fit? Legit cards sit perfectly flush and will never have any fitting or seating problems. Those that do are usually fake. 4) how much data can you fit on the card? Can you store a few gigs of data onto the card but after a certain point does it straight up refuse to transfer any more? If yes then the chances are it's fake. Sometimes there are manufacturer faults in legit cards where they have faulty sectors straight out of the box but these are rare so it's best to assume it's fake. Further tests would need to be made to properly identify it. What these scammers do is they use smaller sized cards and hack the software to read that it's a bigger size than it actually is. This was the case for my original card from eBay. The card would store 4gbs of data and then would "fail" despite saying i have over 100 gbs remaining. I first did an error test on HDtune to see whether it hard any bad sectors (it passed so it was fine there) then I did a read and write test which identified that I had in fact a 4gb card disguised as a 128gb card. Just a few things to check when purchasing cards online to help those who may not know about this stuff and to help them from possibly getting scammed. Hopefully this all helps.

Works as intended, good quality.

Reliable but could/ should be Faster? As always I buy a SanDisk Authentic card from Amazon only not any 3rd party sellers as it's too big a risk since SD cards are probably the most Faked / Copied things on Earth ;) I bought the 200Gb MicroSd version which is supposedly a Class 10. It's certainly not going to win any prizes on the speed stakes that's for sure... However I had bought 1 of these cards a few months back & it was supposedly the exact same 200Gb MicroSd class 10 card & my older 1 (which was again bought from Amazon Direct no 3rd party seller) is significantly faster at writing data to & ever so slightly faster at reading date. I don't know if SanDisk now make x2 models of the 200Gb MicroSd Class 10 U1 cards now or what but if your expecting a really quick write speed & more importantly need that fast write speed maybe look elsewhere for quicker options IMHO. The Card gets used in a device which doesn't require a speedy write speed so I wasn't that bothered & it's definitely OK no problem with it & it's 200Gb of storage space is handy for sure. So I guess overall cause of its cheap price these days that it might be the current best Bang per Buck in the 200/ 256 gb range of cards on offer at the present time. Pros: Reliable SanDisk Quality with lifetime warranty I belive + Decent read speed. Cons: Disappointing Write Speeds as a class 10 U1 card should deliver better IMHO. Recommended though due to the Pros far out weighing the 1 Con :)

I bought the SanDisk Ultra 16GB microSDXC card with the SD adapter when it was £5.99, which felt like good value. It now seems to be £19.99, which is quite a jump. It does what you’d expect – decent transfer speeds up to 100MB/s and it works fine for photos, videos and general storage. The A1 rating helps apps load a bit quicker, and the U1/Class 10 rating is fine for Full HD recording. With Amazon Prime you also get free delivery and easy 30-day returns, which is reassuring if anything goes wrong.

Great SD card, after having a phone that had 64GB onboard storage built in it was clear that I had no need for a SD card until it broke and I had to get a new phone. As I got my new phone the Galaxy S7 which had 32GB of storage I ordered one of these ASAP to have all my music stored on it and a LOT of photos.... Needless to say this extra 32GB (29.7 in reality) just almost covers all my extra storage needs with 4GB of space leftover, Spotify managing to take up a big 20GB of storage in extreme quality, so it can easily store all of your musical needs with a bit of storage leftover all for a cheap £11.99.

This product is very cheap and reliable. I’ve bought several Sandisk micro sd cards in the past and they’re a fantastic option when taking the price and eliability into consideration. Not only that but they always come with an sd converter for use in your laptop/pc to save you having to go and buy one separately. Perfect in every way. Arrived swiftly and the only downside was that it came in generic packaging which didn’t affect the product as it was sealed non the less. I think this may have been because it was bought outside the uk possibly but even then it works amazingly. The seller was great too and didn’t have to contact them regarding the product. Reccomend t LG is purchase if you need a storage device for your mobile phone. NOTE: these aren’t used with iPhones.

Arrived quickly and well packaged, the package design has changed recently. I have been buying these SanDisk Ultra Cards for a few years now in various sizes more so now that they have reduced in price, this is for most SSD's not just the micro ones as these are. I do a little bit of retro gaming and use these cards for my home made games consoles as per pictures I have recently made a mini megadrive this is alongside the mini PS1 I have bought from Amazon. These cards are class 10 and perfect for the raspberry Pi that fits inside these cases. These cards support mobile phones, camera's, tablets, laptops etc, incidentally I have just put one of these in one of my friends laptops that was struggling for storage. These cards come in various sizes so you will have to see what limits your device will support before you buy. I have not encountered a problem with them yet. Look me up on you tube if you are thinking of doing something similar, I have a whole series on retro gaming and also check out my builds lists on here, I have a page with various PC budget builds and components and also do vine reviews. 👍

Gewohnt gute Qualität von SanDisk. Ich habe schon einige Speicherkarten für diverse Endgeräte gekauft (Camcorder, Fotoapparat, Actioncam etc.). Aufgrund der guten Preis/Leistung oft von SanDisk. Dieser Kauf kommt in einem Surface Pro zum Einsatz. In meinem Fall war die Geschwindigkeit hier eher zweitrangig, es ging in erster Linie um die Speichergröße und den aufgerufenen Preis. Daher reichte mir eine UHS-1 Karte völlig aus und der Aufpreis zu den schnelleren UHS-2 Karten konnte in meinem Fall gespart werden. Da die Karte als reine Speichererweiterung eingesetzt wird (z.B. für Bilder), läuft bisher auch kein Systemwichtiges Tool, Programm oder Microsoft selbst von der Speicherkarte. Ich konnte bisher keinen negativen Punkt bei meiner Verwendung erkennen. Sicherlich sehen Profi-Fotografen mit besonderen Kameras die große Datenmengen verarbeiten diesen Punkt etwas anders. Denn je langsamer die Schreibgeschwindigkeit ist, desto länger muss der Fotograf warten bis ein neues Bild geschossen werden kann. Der Speichervorgang benötigt also etwas Zeit. Ich habe die gleiche Karte mit geringerem Speicherplatz in meiner Sony DSC-HX400V und mir fällt die Geschwindigkeit, zumindest beim „ich nenne es mal laienhaften Hobbyfotografieren“, nicht negativ auf. Es handelt sich aber bei der Kamera auch nicht um ein Top-Profigerät. Fazit: Es kommt also bei der Geschwindigkeit immer auf den geplanten Einsatz und den persönlichen Anspruch an. Die Speicherkarte wurde im Surface Pro sofort erkannt und es gab keine Probleme. Ich bewerte die Karte als rundum solide mit einer aktuell guten Preis-/ Leistung.

Bonjour, j'ai acheté cette carte car j'avais besoin d'une nouvelle carte microSD pour la tablette de mon papa (une Galaxy Tab4 supportant les microSD jusqu'à 64Go). J'avais l'année dernière acheté et testé la version précédente, je précise la dernière version de celle-ci (avec des débits beaucoup plus rapides...) car elle avait le même intitulé sauf indiquée (nouvelle version), à l'époque je l'avais testé sur mon Mac, c'est ainsi que j'avais remarqué que mon lecteur SD interne était beaucoup moins performant que mon lecteur USB3: https://www.amazon.fr/gp/customer-reviews/R31V0STA6Y383R/ref=cm_cr_srp_d_rvw_ttl?ie=UTF8&ASIN=B013UDL58E Pour faire simple, cette Ultra A1 (testée ici avec une capacité de 64Go) est très performante, à la fois en lecture mais également en écriture mais au final très proche (pour ne pas dire plus...) de la version précédente. J'ai cru comprendre que les cartes A1 étaient intéressantes sur Android enfin d'obtenir de meilleures performances avec les applications installées dessus, cela est valable pour une version d'Android récente (v7 mini si je ne dis pas de bêtises). "Si les cartes mémoire au format MicroSD de nos smartphones et tablettes tactiles peuvent stocker des photos, des musiques et des vidéos, elles ont aussi la possibilité d’accueillir des applications. Avec les dernières moutures d’Android, le formatage permet même de rendre la chose totalement transparente, en fusionnant la mémoire initiale de l’appareil et la mémoire additionnelle. Maintenant, encore faut-il que les performances soient suffisantes pour permettre à des applications de fonctionner correctement. La SD Association vient d’introduire une nouvelle certification A1 (ou A1 App Performance, dans sa version longue) qui sera apposée sur le produit et son packaging afin de permettre à l’acheteur de savoir si la carte mémoire devant lui permettra de charger des applications dans de bonnes conditions. Les critères pour prétendre à cette certification A1 sont des débits d'au moins 10 Mo/s en lecture/écriture séquentielle, 500 IOPS en écriture aléatoire et 1 500 IOPS en lecture aléatoire." Articlé trouvé sur Generation-NT.com Pour faire court, cette carte est très performante, surtout pour cette gamme de prix, payé dans les 24 euros en version 64Go. Vous trouvez quelques photos des tests de performances réalisés sur différentes configurations (avec le logiciel CrystalDiskMark 5.2.2 x64), mais toujours avec mon Pc portable Dell Precision 5510, je suis passé à la fois avec le lecteur de carte SD intégré (très rapide) du Pc portable (avec l'adaptateur performant microSD vers SD livré avec la carte), mais également mon lecteur USB3 Transcend TS-RDF8K, la carte a été testé sur l'entrée microSD du lecteur mais également sur l'entrée SD du lecteur (toujours avec l'adaptateur livré avec la carte). Dans tous les cas, j'ai réalisé des transferts de 100Mo et 500Mo. L'ancienne et nouvelle carte A1 sont très proches en terme de performances, s'il y a une grosse différence de prix, prenez la moins onéreuse... En espérant que mon commentaire vous aura été utile, n'hésitez pas à cliquer sur OUI si tel était le cas. Cordialement

Llevo mucho tiempo utilizando tarjetas Micro SD tanto para móviles, cámaras, etc. siempre lo primero que me fijo cuando compro una tarjeta micro SD, primero la capacidad ya que con los móviles ahora de última tecnología, la resolución de las fotografías cada vez es mayor y cada vez necesitamos más espacio, pero lo más importante en lo que suelo fijarme es en la velocidad de transferencia, esta tarjeta no es de las más rápidas, pero la velocidad de transferencia está bastante bien alcanza aproximadamente los 100 Mb por segundo según fabricante, aunque en pruebas que realizado me da algo menos. Decir que el precio que tiene para las prestaciones y la calidad que da está muy bien, en relación con otras marcas. La he probado en varios teléfonos y todos me ha funcionado sin ningún problema, había leído en algunos comentarios que parecía que daba problemas de que no reconocía la tarjeta, si recomiendo hacerle un formateo si no la reconoce desde el terminal, pero como ya he dicho no he tenido ese problema. Al ser de clase 10 graba y reproduce vídeos Full HD. No me ha gustado mucho, el embalaje en el que viene, da la sensación de ser un poco cutre, me imagino que para poder llegar a eso precios se debe recortar de donde se pueda. Desde que tuve problemas con una tarjeta que compre sin ser de marca llego a calentarse de tal manera que casi me estropea el teléfono y desde entonces sólo estoy utilizando esta marca me ha ido bien en mis anteriores teléfonos y hasta ahora no he tenido ningún problema, pero esto es como todo, ya se sabe componentes electrónicos, suelen fallar cuando uno menos se lo espera, por eso recomiendo siempre tener otra copia de seguridad, en otro formato, llámese nube, NAS etc. Funciona perfectamente y la velocidad de almacenamiento tratamiento y visionado de archivos es bastante rápida recomiendo tanto por la calidad, garantía, que da y el precio que tiene. Muchas gracias por haber leído mi revisión y espero que te allá sido útil, y si te ha quedado alguna duda, no dudes en preguntar.

J'ai achete cette carte (vendeur AMAZON) apres avoir achete une identique d'un vendeur tiers qui ne fonctionnait pas. Elle marchait parfaitement dans mon Smartphone Galaxy S9 pendant 18 mois et soudainement a eu des problemes de secteurs illisibles (verifie sur ordinateur MacOS/Windows, heureusement je n'ai perdu que qqs podcasts et pas mes photos). Reformattage n'a pas resolu le probleme. Apres 18 mois je pensais avoir peu de chance qu'elle soit couverte par la garantie, mais bonne surprise, le support client Amazon m'a mis en contact avec le SAV de Sandisk qui m'a confirme que leurs cartes ont une garantie de 10 ans et je peux la renvoyer pour recevoir une nouvelle. Donc tres bon choix et je recommande la marque Sandisk. Faites juste attention de acheter d'un vendeur de confiance.

funziona perfettamente anche se non pensavo fosse cosi difficile da inserire e togliere , a un certo punto pensavo fosse rimasto incastrato nel mia apparecchio di registrazione . . . . purtroppo al momento e inutilizzabile perché ho dovuto fare il reso dell'altro apparecchio arrivatomi guasto anzi rotto per registrare la minischedaSD e perfetta come , non deve nemmeno essere formattata