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3 Year Data Recovery Plan
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  • If your drive stops working, the Rescue data recovery plan will attempt to recover the data from the failed drive and recovered data will be returned on a media storage device or via secure cloud-based data storage.
  • Covers new removeable flash memory device of any brand when purchased within 30 days (receipt must be retained for purchases not on the same transaction).
  • Free shipping for in–lab data recovery; 24/7 online case status tracking
  • If your data isn’t recovered, you get your money back.
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3 Year Data Recovery Plan

from After Solutions
  • Your Rescue Plan documents will be delivered to you via email only to the address associated with your Amazon.com account and can be found in your account message center within the Buyer/Seller Messages
  • If your drive stops working, the Rescue data recovery plan will attempt to recover the data from the failed drive and recovered data will be returned on a media storage device or via secure cloud-based data storage.
  • Covers new removeable flash memory device of any brand when purchased within 30 days (receipt must be retained for purchases not on the same transaction).
  • Free shipping for in–lab data recovery; 24/7 online case status tracking
  • If your data isn’t recovered, you get your money back.

2 Year Data Recovery Plan

from After Solutions
  • Your Rescue Plan documents will be sent to you via email to the address associated with your Amazon.com account and can be found in your account message center within the Buyer/Seller Messages.
  • If your drive stops working, the Rescue data recovery plan will attempt to recover the data from the failed drive and recovered data will be returned on a media storage device or via secure cloud-based data storage.
  • Covers new removeable flash memory device of any brand when purchased within 30 days (receipt must be retained for purchases not on the same transaction).
  • Free shipping for in–lab data recovery; 24/7 online case status tracking
  • If your data isn’t recovered, you get your money back.
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SanDisk 400GB Ultra microSDXC UHS-I Memory Card with Adapter - 100MB/s, C10, U1, Full HD, A1, Micro SD Card - SDSQUAR-400G-GN6MA

4.7 out of 5 stars 729,191 ratings

Price: $68.99 & FREE Returns
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Capacity: 400GB
400GB
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Brand SanDisk
Flash Memory Type Micro SDXC
Hardware Interface MicroSDXC
Secure Digital Association Speed Class Class 10
Memory Storage Capacity 400 GB

About this item

    This fits your .
  • Make sure this fits by entering your model number.
  • Ideal for Android smartphones and tablets, and MIL cameras
  • Capacities up to 512GB (1GB=1,000,000,000 bytes. Actual user storage less.) to store even more hours of Full HD video (Approximations; results and Full HD (1920x1080) video support may vary based on host device, file attributes and other factors.)
  • Up to 100MB/s transfer read speed (Based on internal testing; performance may be lower depending on host device, interface, usage conditions and other factors.) lets you move up to 1000 photos in a minute (Based on 4.1GB transfer of photos (Avg file 3.5MB) with USB 3.0 reader. Results may vary based on host device, file attributes and other factors.)
  • Load apps faster with A1-rated performance (A1 performances is 1500 read IOPS, 500 write IOPS. Based on internal testing. Results may vary based on host device, app type and other factors.)
  • Class 10 for Full HD video recording and playback (Full HD (1920x1080) video support may vary based upon host device, file attributes, and other factors.)
  • SanDisk Memory Zone app for easy file management (Download and Installation Required)
  • 10-year limited manufacturer warranty
  • Order with your Alexa enabled device. Just ask "Alexa, order SanDisk microSD."

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  • SanDisk 400GB Ultra microSDXC UHS-I Memory Card with Adapter - 100MB/s, C10, U1, Full HD, A1, Micro SD Card - SDSQUAR-400G-GN
  • +
  • WYZE Cam v3 with Color Night Vision, Wired 1080p HD Indoor/Outdoor Video Camera, 2-Way Audio, Works with Alexa, Google Assist
  • +
  • SanDisk 128GB Ultra MicroSDXC UHS-I Memory Card with Adapter - 120MB/s, C10, U1, Full HD, A1, Micro SD Card - SDSQUA4-128G-GN
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SanDisk 400GB Ultra microSDXC UHS-I Memory Card with Adapter - 100MB/s, C10, U1, Full HD, A1, Micro SD Card - SDSQUAR-400G-GN6MA
Amazon Basics - 128GB microSDXC Memory Card with Full Size Adapter, A2, U3, read speed up to 100 MB/s
SanDisk 400GB Ultra microSDXC UHS-I Memory Card with Adapter - 120MB/s, C10, U1, Full HD, A1, Micro SD Card - SDSQUA4-400G-GN6MA
SanDisk 256GB Extreme microSDXC UHS-I Memory Card with Adapter - Up to 160MB/s, C10, U3, V30, 4K, A2, Micro SD - SDSQXA1-256G-GN6MA
SAMSUNG EVO Select Plus Micro SD Memory Card + Adapter, 256GB microSDXC 130MB/s Full HD & 4K UHD, UHS-I, U3, A2, V30, Expanded Storage for Phone, Gaming, Tablet, MB-ME256KA/AM
SanDisk 256GB Extreme MicroSDXC UHS-I Memory Card - C10, U3, V30, 4K, A2, Micro SD - SDSQXA1-256G-GN6MN
Customer Rating 4.7 out of 5 stars (729191) 4.7 out of 5 stars (448) 4.8 out of 5 stars (97581) 4.8 out of 5 stars (244885) 4.8 out of 5 stars (203299) 4.8 out of 5 stars (726)
Price $68.99 $19.99 $47.99 $38.49 $24.99 $36.95
Shipping FREE Shipping. Details FREE Shipping on orders over $25.00 shipped by Amazon or get Fast, Free Shipping with Amazon Prime FREE Shipping. Details FREE Shipping. Details FREE Shipping on orders over $25.00 shipped by Amazon or get Fast, Free Shipping with Amazon Prime FREE Shipping. Details
Sold By OnyxMicro Amazon.com Amazon.com Amazon.com Amazon.com TheTechGroup
Computer Memory Size 256 GB 128.0 GB 256 GB 256.0 GB
Digital Storage Capacity 400 GB 128.0 GB 400 GB 256 GB 256.0 GB 256 GB
Flash Memory Type Micro SDXC Micro SDXC Micro SD Micro SD Micro SDXC Micro SD
Item Dimensions 0.04 x 0.59 x 0.43 inches 0.59 x 0.43 x 0.04 inches 0.04 x 0.59 x 0.43 inches 0.04 x 0.59 x 0.43 inches 0.04 x 0.59 x 0.43 inches
Item Weight 0.16 ounces 0.01 ounces 0.16 ounces 0.16 ounces 0.32 ounces
Memory Storage Capacity 400 GB 128 GB 400 GB 256 GB 256 GB 128 GB
Secure Digital Association Speed Class Class 10 Class 10 Class 10
Size 400GB 128GB 400GB 256GB 256GB

Product description

Capacity:400GB

Our highest-capacity microSD card is perfect for recording and watching Full HD video, (2) with room for even more hours of video. (7) Transfer speeds of up to 100MB/s ensure that you can move all your content blazingly fast—up to 1200 photos in just one minute. (6) Ideal for Android-based smartphones and tablets, this card’s A1 rating means that you can load apps faster too. (1) And, with its unprecedented 400GB capacity, this card lets you capture and store more than ever before. | 1GB=1,000,000,000 bytes. Actual user storage less. | Up to 100MB/s read speed; write speed lower. Based on internal testing; performance may be lower depending on host device, interface, usage conditions and other factors. 1MB=1,000,000 bytes. | (1) Results may vary based on host device, app type and other factors. | (2) Full HD (1920x1080) video support may vary based upon host device, file attributes, and other factors. | (3) Card only | (5) Download and installation required | (6) Based on 4.1GB transfer of photos (Average file 3.5MB) with USB 3.0 reader. Results may vary based on host device, file attributes and other factors. | (7) Approximations; results and Full HD (1920x1080) video support may vary based on host device, file attributes and other factors.

Product information

Capacity:400GB

Technical Details

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Additional Information

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
For warranty information about this product, please click here. [PDF ]

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Customer reviews

4.7 out of 5 stars
4.7 out of 5
729,191 global ratings

Top reviews from the United States

Reviewed in the United States on September 30, 2018
Capacity: 200GBVerified Purchase
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4.0 out of 5 stars Believe the "Fake Card" Hype - Photo to Prove It
By Jeffrey Fahndrich on September 30, 2018
Top card doesn't work / Bottom card works. Bought the top card June 18 2018 for a Nintendo Switch and the games would download to 99% and then suddenly I'd get an error. When these cards went on sale recently I bought a new one just to see if it was the card. I could not BELIEVE how different the fonts were! Check out photo. Also the color of the bad card is off (slightly more purple and less red). Sure enough, I was able to download games to the new card without incident. The real product works great but I just can't justify giving 5 stars when I had this experience. Buyer beware!
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3,955 people found this helpful
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Reviewed in the United States on August 5, 2018
Capacity: 64GBVerified Purchase
1,260 people found this helpful
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Reviewed in the United States on April 13, 2018
Capacity: 32GBVerified Purchase
1,169 people found this helpful
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Reviewed in the United States on April 10, 2018
Capacity: 128GBVerified Purchase
1,307 people found this helpful
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Reviewed in the United States on March 28, 2018
Capacity: 32GBVerified Purchase
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1.0 out of 5 stars I got a fake...Beware!
By S Trent on March 28, 2018
I always use SanDisk and think they are top-notch. However, beware of fakes! I got an obvious fake microSD card, and the retail package had obviously been opened before I received it.
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1,734 people found this helpful
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Reviewed in the United States on December 17, 2017
Capacity: 128GBVerified Purchase
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5.0 out of 5 stars Worked perfectly in my testing and in my tablets!
By JJCEO on December 17, 2017
I got this 128 GIG card to use with my tablets. So far it has worked perfectly in my testing. I always keep a couple of spares around for my future buys and I seem to give a lot of my SD cards away to family and friends. I picked up this 128 GIG at a great price and I just couldn’t pass it up.

I own about 100 SD cards and I always do a speed test to verify the reading and writing speeds before I install the memory. This card checked out extremely well. The fastest write speed on this card was 73.143 MB/Sec and the fastest reading speed was 93.368 MB/Sec. I have attached the graphical test data for your information. I used a USB 3.0 port with a USB 3.0 card reader for the test.

Overall, this card worked well and I rated it five stars. If I have any future issues I will update my review.

I hope my review and photo of the test data helps you.

Out of 100 plus SD cards I have purchased from Sandisk I have only had one fail. With Sandisk’s 10 year warranty they replaced it and sent me a new one at no charge. That is the advantage when you purchase high tech from a top company that stands behind their product.

I simply called them and returned the old chip and they sent me a new one.

I am amazed at how well these work and how low the price has gotten on a sale day. Putting one of these into your phone or tablet is a wonderful upgrade to the device’s storage capability.

Almost no one needs a 128 GIG chip but at sales prices you can’t pass up getting them.

This is a great product and it makes your smart devices even more powerful.

This is a simple and easy upgrade for your smart devices.
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730 people found this helpful
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Reviewed in the United States on June 10, 2018
Capacity: 256GBVerified Purchase
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5.0 out of 5 stars Always check if the card is legit when it arrives
By OML on June 10, 2018
Beware of fake cards. The capacity shown on fake cards can be modified to show a size greater than what it actually is. Ex. A fake 256GB card having only 32GB instead. Some unknowing person could use the card without knowing it was fake and find that the data was corrupted when it got past 32GB or encounter a very very slow transfer rate past a certain point.

To check if the card you bought is legit or not use FakeFlashTest (fast) and H2testw (slower but thorough).
This will delete the content on your card so backup whatever you have before using it.

The speed and pictures I got from my legit 256GB card are attached. Your results may vary. The product code is edited out for product support issues.
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323 people found this helpful
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Reviewed in the United States on June 8, 2018
Capacity: 64GBVerified Purchase
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1.0 out of 5 stars DOA: Card melted down while plugged in to my laptops card reader.
By TonyDC on June 8, 2018
Dead on Arrival. I was never able to format it. The worse part was that when I tried to pull it out from my laptop card reader, I burned my fingers touching it! The card was extremely hot. I took it out using a piece of cloth and once it cooled off, I could see that part of the adapter was melted. If I would had leave it plugged in more time it could have easily caused a fire. I have been using memory cards a lot, this is the first time something like this happened to me.
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245 people found this helpful
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Top reviews from other countries

brandon marino
1.0 out of 5 stars I was sold a fake. I chose amazon as the retailer and I was still sold a fake.
Reviewed in Canada on November 12, 2018
Capacity: 128GBVerified Purchase
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1.0 out of 5 stars I was sold a fake. I chose amazon as the retailer and I was still sold a fake.
Reviewed in Canada on November 12, 2018
You can see from the screenshot I linked. The sd card starts corrupting data at 32gbs. This card is clearly a rebranded 32gb card with a false reporting controller. Be careful, test your cards.
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960 people found this helpful
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MH
1.0 out of 5 stars Fake microSD apparemment
Reviewed in France on October 12, 2018
Capacity: 128GBVerified Purchase
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1.0 out of 5 stars Fake microSD apparemment
Reviewed in France on October 12, 2018
Class A1 pour une lecture rapide et ouverture des apps plus réactive sur smartphone. Le problème est que j'ai reçue une copie (fake) au lieu de l'originale. Sur l'original, l'opercule de sécurité est blanc, pas transparent et l'adaptateur SD n'a pas de relief (comme montré sur la page de l'article). En copie, les deux photos prises du produit reçu ainsi que la capture de l'adaptateur SD sur la page produit. Le SC Amazon m'envoie une nouvelle Micro SD et devrait investiguer le problème (merci à eux).
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651 people found this helpful
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Rahul K.
5.0 out of 5 stars Samsung vs Sandisk
Reviewed in India on March 17, 2018
Capacity: 32GBVerified Purchase
572 people found this helpful
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Antecessor
5.0 out of 5 stars La mejor relación capacidad/precio. 10 MB/s garantizados, más... depende
Reviewed in Spain on October 1, 2021
Capacity: 64GBVerified Purchase
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5.0 out of 5 stars La mejor relación capacidad/precio. 10 MB/s garantizados, más... depende
Reviewed in Spain on October 1, 2021
Adquirí esta tarjeta por tener la mejor relación capacidad/precio, entre las tarjetas de marca fiable, que encontré: 64 GB por 19,90 € en julio de 2018. A lo largo del tiempo he ido descartando alguna marcas de tarjetas (marcas que serán muy buenas en móviles pero poco fiables en esto) por problemas de corrupción y pérdida de datos recurrentes, en varias unidades. Esto no me ha pasado nunca ni con Kingston ni con Sandisk, son las dos marcas en las que confío y entre las que selecciono por simple criterio de capacidad, velocidad y precio.

Sobre velocidad de escritura para el uso general la de esta tarjeta es más que suficiente, Cl. 10 y U1, que garantiza el uso en grabación de video FHD. En mi caso no era una prioridad, de las dos tarjetas que he comprado una va en un móvil y la otra en un lector de mp3, prima más la capacidad que la velocidad (entendiendo que es suficiente para estos usos). Una mayor velocidad puede ser crítica si utilizamos una cámara réflex o de alta gama tirando fotos a ráfagas en formato RAW, o en usos más triviales, cuando queremos cargar pelis para ver en una tablet con frecuencia y no tenemos mucha paciencia esperando a que se tranfieran GB de datos.

Aprovecho para aclarar qué significan las cifras sobre velocidad que suelen aparecer en estas tarjetas:

· El 10 dentro de una C (clase 10) es la velocidad de escritura en MB/s, en este caso 10 MB/s. Típicamente se han encontrado clases 2, 4, 6, 8 y 10. Hoy en día casi todo lo que está a la venta es Clase 10, como se ha dicho el estándar exigible para grabar vídeo en Full HD en nuestra cámara o móvil. No hay clases superiores por esta clasificación. A esta velocidad de grabación pasar a la tarjeta una película HD en mkv de unos 2,5 GB nos llevará aproximadamente 4 minutos.

· El 1 dentro de una U significa que es UHS Speed Class 1. Esta cifra es un múltiplo de la referencia Clase 10, por tanto 1 x 10 MB/S. Se utiliza en tarjetas SDHC y SDXC, con un estándar diferente que sólo está activo cuando se conecta en un dispositivo de lectura-escritura compatible que permite mayores velocidades, múltiplos de la de referencia Cl. 10. Si en una tarjeta tuviéramos un 3 dentro de la U, ésta garantizaría 3 x 10 MB/s, por tantto 30 MB/s. En ese caso la misma película tardaría en pasarse aproximandamente 1 minuto 20 segundos.

Con esta Clase 10 U-1 en uso no he pasado de 10 MB/s, pero se ha mantenido muy cerca de éstos de forma sostenida. Es lo que promete el estándar con el que se vende y no se puede exigir más. En el blister se prometen 100 MB/s. Puede que los consiga en ciertas condiciones o con ciertos dispositivos de escritura que tengan el estándar "A1" que también vemos impreso en la tarjeta y que ya no es tan estándar, pero en en el caso general no se conseguirá.

El formato de serie es exFAT, la variante de FAT32 que permite archivos de más de 4 GB. Puede que el móvil de algún usuario no lo soporte. Basta con formatearla en un PC a FAT32.

De momento funciona muy bien. Si falla lo reportaré aquí mismo y corregiré mi valoración. Para uso general en teléfonos y grabar video FHD es una elección estupenda. Quien quiera utilizarla para grabar vídeo 4K seguramente no tenga problemas, pero quizás debería buscar una UHS Speed Class 3 (un 3 en la U) para asegurarse.
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Aparte de comentar el producto, veo comentarios que hacen dudar sobre la autenticidad de la tarjeta, parece que algún comprador ha recibido productos que no son exactamente el esperado.

Cuando ocurre algo así, es útil que los comentarios identifiquen el vendedor al que se ha adquirido el producto, lo que permite esquivarlo en la compra de otros usuarios. Recomiendo de todas formas seleccionar siempre vendedores con buena valoración, 5* y respaldada por muchas valoraciones, y en caso de duda, adquirir a Amazon directamente.
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802 people found this helpful
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Grahame E, Surrey
5.0 out of 5 stars Great Card, would recommend.
Reviewed in the United Kingdom on April 9, 2018
Capacity: 32GBVerified Purchase
324 people found this helpful
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