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[Older Version] SanDisk 128GB Ultra MicroSDXC UHS-I Memory Card with Adapter - 100MB/s, C10, U1, Full HD, A1, Micro SD Card - SDSQUAR-128G-GN6MA

4.7 out of 5 stars 219,156 ratings
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Purchase options and add-ons

Brand SanDisk
Model Name SanDisk Ultra 128GB microSDXC UHS-I card with Adapter - SDSQUAR-128G-GN6MA
Flash Memory Type Micro SD
Memory Storage Capacity 128 GB
Compatible Devices Tablet, Smartphone

About this item

  • Ideal for Android Smartphones and Tablets. Certified to work with Chromebooks. (This product has been certified to meet Google’s compatibility standards. Chromebook and the “Works with Chromebook” badge are trademarks of Google LLC.)
  • 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 (Average 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 performance 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)
  • Order with your Alexa enabled device. Just ask "Alexa, order SanDisk microSD."

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This item: [Older Version] SanDisk 128GB Ultra MicroSDXC UHS-I Memory Card with Adapter - 100MB/s, C10, U1, Full HD, A1, Micro SD Card - SDSQUAR-128G-GN6MA
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[Older Version] SanDisk 128GB Ultra MicroSDXC UHS-I Memory Card with Adapter - 100MB/s, C10, U1, Full HD, A1, Micro SD Card - SDSQUAR-128G-GN6MA
[Older Version] SanDisk 128GB Ultra MicroSDXC UHS-I Memory Card with Adapter - 100MB/s, C10, U1, Full HD, A1, Micro SD Card - SDSQUAR-128G-GN6MA
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Price$15.99-20% $13.57
List:$16.99
$13.63-5% $14.31
List:$14.99
$19.99-8% $10.99
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flash memory type
memory capacity
speed class
write speed

Product Description

SanDisk Ultra microSDXC and microSDHC cards are fast for better pictures, app performance, and Full HD video. Ideal for Android smartphones and tablets, these A1-rated cards load apps faster for a better smartphone experience. Available in capacities up to 400GB, you have the capacity to take more pictures and Full HD video and capture life at its fullest. Built to perform in harsh conditions, SanDisk Ultra microSD cards are waterproof, temperature proof, shockproof, and X-ray proof. 1GB=1,000,000,000 bytes. Actual user storage less. (For 64GB-256GB): Up to 100MB/s read speed; write speed lower. (For 16GB-32GB): Up to 98MB/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) Full HD (1920x1080) video support may vary based upon host device, file attributes, and other factors. (2) Card only. (3) Results may vary based on host device, app type and other factors. (4) Download and installation required. (5) 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. 6) Approximations; Results and Full HD (1920x1080) video support may vary based on host device, file attributes and other factors.

Product information

Technical Details

Collapse all
Color ‎Grey,Red, Grey
Special Feature ‎water_proof, x_ray_proof, temperature_proof, shock_proof
Read Speed ‎100 Megabytes Per Second
Product Dimensions ‎1"D x 3"W x 8"H
Item Weight ‎0.01 Pounds
Warranty Type ‎Manufactured warranty
Write Speed ‎40x
Hardware Interface ‎microSDXC
Secure Digital Association Speed Class ‎Class 10
Product Dimensions ‎0.03"L x 0.59"W
Manufacturer ‎Western Digital Technologies Inc.
Global Trade Identification Number ‎00880924867213
RAM ‎128 GB
Memory Speed ‎100 Megabytes Per Second
Hard Drive ‎128 GB Memory Card
Item model number ‎SDSQUAR-128G-GN6MA
Item Weight ‎0.16 ounces
Item Dimensions LxWxH ‎0.03 x 0.59 x 0.1 inches
Department ‎Memory
ASIN ‎B073JYC4XM
Is Discontinued By Manufacturer ‎No
Date First Available ‎July 1, 2017

Additional Information

Customer Reviews
4.7 out of 5 stars 219,156 ratings

4.7 out of 5 stars
Best Sellers Rank #252 in Micro SD Memory Cards

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.
Product Warranty: For warranty information about this product, please click here. [PDF ]

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[Older Version] SanDisk 128GB Ultra MicroSDXC UHS-I Memory Card with Adapter - 100MB/s, C10, U1, Full HD, A1, Micro SD Card - SDSQUAR-128G-GN6MA


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What's in the box

  • SanDisk Ultra microSDXC UHS-I Card
  • SD adapter
  • Customer reviews

    4.7 out of 5 stars
    219,156 global ratings

    Review this product

    Share your thoughts with other customers

    Customers say

    Customers find the microSD card works well with Nintendo Switch and other devices, with reliable performance and no corruption issues reported. The card offers good value for money and features fast read and write speeds, while being easy to install and use. They appreciate its storage capacity, with one customer noting it has plenty of space for movie clips, and another mentioning it's perfect for Sony Walkman devices.

    AI-generated from the text of customer reviews

    2,324 customers mention "Functionality"2,136 positive188 negative

    Customers report that the memory card works well with various devices, including kids' cameras, Nintendo Switch, and high-definition music players.

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

    "works great." Read more

    "...So, these work great in EOS canon digital cameras or equivalent with bottomless capacity...." Read more

    "Bought this to extend my switches storage. Works perfectly for that, I have had it for years without issues." Read more

    1,379 customers mention "Value for money"1,281 positive98 negative

    Customers find the memory card to be a great value for the money, appreciating its cost per GB.

    "...I picked up this 128 GIG at a great price and I just couldn’t pass it up...." Read more

    "...The prices on these are so good now you have no excuse but to buy good name brand like SanDisk. Just buy it and don't worry about it." Read more

    "...could have gone with a smaller storage version, but they had a great price on this one at the time...." Read more

    "...Their price isn't bad either! Prices fluctuate, so, just watch for a day or two and see if you aren't in a hurry...." Read more

    1,200 customers mention "Quality"1,077 positive123 negative

    Customers find the memory card to be reliable and durable, with multiple reviews noting it has never experienced failure or corruption issues.

    "...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." Read more

    "...I have already noticed that the speed is adequate, and I never experience skipping when playing uncompressed high-resolution audio files...." Read more

    "Good product" Read more

    "SanDisk has proved me on how durable and well made it is. This SanDisk never gave me difficulties, always kept the files I would put on it...." Read more

    1,165 customers mention "Storage capacity"1,084 positive81 negative

    Customers appreciate the memory card's storage capacity, noting it has plenty of space for songs, games, and movie clips, with one customer specifically mentioning it works well with their Sony Walkman.

    "...one of these into your phone or tablet is a wonderful upgrade to the device’s storage capability...." Read more

    "Massive storage capacity to save photos, videos and any other files" Read more

    "...my left ear, push it in till it clicks and locks, and download all my memories into it. I'll never lose my car keys again!..." Read more

    "...Also, they spare the internal computer memory from excessive and extra writes and deletes, since I put files on here that may not stay on for very..." Read more

    543 customers mention "Memory card"480 positive63 negative

    Customers find the microSD card reliable and report no issues with its performance.

    "...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...." Read more

    "Does what you'd imagine. It's real, works as intended." Read more

    "...Mostly "read" and some writes. They have performed well in harsh conditions (remote areas in Africa) with frequent use...." Read more

    "...With a seamless 100MB/s speed, it handles gaming like a champ. The included adapter is a plus, making it versatile for various devices...." Read more

    533 customers mention "Speed"450 positive83 negative

    Customers praise the memory card's speed, noting that it reads and writes quickly, downloads content faster, and is worth the extra cost.

    "...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...." Read more

    "...During the initial data transfer I have already noticed that the speed is adequate, and I never experience skipping when playing uncompressed high-..." Read more

    "...I downloaded several 3 minute videos and its fast enough for one or two clips...." Read more

    "...With a seamless 100MB/s speed, it handles gaming like a champ. The included adapter is a plus, making it versatile for various devices...." Read more

    269 customers mention "Compatibility"249 positive20 negative

    Customers find the memory card compatible with their Nintendo Switch and other devices.

    "...The included adapter is a plus, making it versatile for various devices. Flawless performance and ample storage – a must-have upgrade!" Read more

    "...The card fit perfectly into my Nintendo Switch, reads quickly so there’s no stalling in the game, and has enough memory on board so that my kid can..." Read more

    "...Use it for Switch including running games." Read more

    "...I have had no problem with compatibility however, if you are looking for something with fast read/write times I suggest you look at some of their..." Read more

    263 customers mention "Ease of installation"252 positive11 negative

    Customers find the memory card easy to install and use, taking no time at all, and works well with tablets.

    "...This is a simple and easy upgrade for your smart devices." Read more

    "It's super easy to install into my Moto G stylus and I'd say most phones if not all...." Read more

    "Image quality is good, storage lots of it, durable & easy to install. Highly recommend to all!" Read more

    "...laptop and old phone I wanted transfered to this SD card and it took no time at all I was very impressed...." Read more

    Worked perfectly in my testing and in my tablets!
    5 out of 5 stars
    Worked perfectly in my testing and in my tablets!
    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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    Top reviews from the United States

    • Reviewed in the United States 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.
      Customer image
      5.0 out of 5 stars
      Worked perfectly in my testing and in my tablets!

      Reviewed in the United States 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.
      Images in this review
      Customer image
      740 people found this helpful
      Report
    • Reviewed in the United States on November 2, 2018
      - I have tried so many different SD cards from various manufacturers, at various price points, in the name of trying to save a few bucks. It was really important to me back when a 128GB card cost $50 or more. They all do the same thing, so what’s the difference, really?
      What I've found is that it can be extremely aggravating to put up with when the card does not perform well or does not perform at all. I have heard warning stories about cards that are advertised as one size and actually are another size, causing data loss. With that in mind, I have never tried using the very cheapest card or too-goo-to-be-true card deals. But I have purchased cards on sale at the drugstore or even tried some strange brands. What I have come back to is that it’s just not worth the trouble now that prices have dropped so low. When I am trusting 128 GB of data to a single card, it’s just not worth my time and aggravation to have a card that won’t perform. Furthermore, SanDisk cards like this one are all FAST ENOUGH. I’m not a pro photographer, and I don’t have time to figure out whether a card is Class 1 or Class 3 or whatever. I just want it to be good enough that it can keep up with my devices.

      I have now purchased several SanDisk cards, and each and everyone of them has arrived in perfect condition and works perfectly every time. They are faster than any other card that I use and I've never suffered data loss. I am putting this card into my Fiio X5ii Digital Audio Player, and it works just fine. During the initial data transfer I have already noticed that the speed is adequate, and I never experience skipping when playing uncompressed high-resolution audio files. I have the same card for my Nintendo Switch, and it works perfectly.

      The prices on these are so good now you have no excuse but to buy good name brand like SanDisk. Just buy it and don't worry about it.
      One person found this helpful
      Report
    • Reviewed in the United States on February 10, 2025
      works great.
    • Reviewed in the United States on February 13, 2025
      Massive storage capacity to save photos, videos and any other files
    • Reviewed in the United States on October 12, 2024
      I got these for a hi-res dash cam set thinking this was overkill. I got a "clipping warning one day because there was a lot of data flow and this card couldn't keep up. To my surprise, this wasn't fast enough. The dash cam needed a V30, U10 or higher card, which is fast enough for most video cameras. So, these work great in EOS canon digital cameras or equivalent with bottomless capacity. I went a year with one camera before downloading all the photos. So, if you don't need 4K movie camera speeds, this card should do the trick. Check your hardware requirements for speed & enjoy
    • Reviewed in the United States on July 26, 2024
      There is not much you can say about micro-SD chips except "buy from a well-known company", and SanDisk is it. I download music to my disk so I can use it in my MP3 player or my phone. I have had it for a while now, use it every day, download music once or twice a month and it has never failed me. I probably could have gone with a smaller storage version, but they had a great price on this one at the time. As far as storing critical info on it, I don't see a problem, but I would still want a good back-up system for that "just in case".
      I would definitely buy more of these for future storage needs.
    • Reviewed in the United States on January 31, 2025
      Never a problem.
    • Reviewed in the United States on February 28, 2025
      Excellent

    Top reviews from other countries

    Translate all reviews to English
    • take
      5.0 out of 5 stars 特に問題なし
      Reviewed in Japan on October 20, 2019
      偽物も多いと聞き少し心配しつつ購入しましたが、H2testwでの容量チェックは問題ありませんでした。
      仕様と比べどうなのかわかりませんが、CrystalDiskMarkでの速度テストは以下のようになりました。耐久性はまだわかりません。
      -----------------------------------------------------------------------
      CrystalDiskMark 6.0.2 x64 (C) 2007-2018 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 bytes

      Sequential Read (Q= 32,T= 1) : 79.976 MB/s
      Sequential Write (Q= 32,T= 1) : 57.595 MB/s
      Random Read 4KiB (Q= 8,T= 8) : 9.309 MB/s [ 2272.7 IOPS]
      Random Write 4KiB (Q= 8,T= 8) : 1.405 MB/s [ 343.0 IOPS]
      Random Read 4KiB (Q= 32,T= 1) : 8.638 MB/s [ 2108.9 IOPS]
      Random Write 4KiB (Q= 32,T= 1) : 1.428 MB/s [ 348.6 IOPS]
      Random Read 4KiB (Q= 1,T= 1) : 8.893 MB/s [ 2171.1 IOPS]
      Random Write 4KiB (Q= 1,T= 1) : 1.250 MB/s [ 305.2 IOPS]

      Test : 1024 MiB [E: 0.0% (0.0/119.1 GiB)] (x5) [Interval=5 sec]
      Date : 2019/10/18 0:53:21
      OS : Windows 10 Professional [10.0 Build 17763] (x64)
      Report
    • Khaled
      5.0 out of 5 stars Fast and Spacious
      Reviewed in the United Arab Emirates on May 5, 2019
      It is working perfectly and it is cheap as it is high speed A1. It worked with the raspberry pi 3B+ with no problem. Retropie, rasbian, Kodi and Plex media server all on one card. Notice you must format it to fat32 to work.
    • Anthony H.
      5.0 out of 5 stars Got a genuine product through Amazon.sg
      Reviewed in Singapore on November 22, 2019
      Before buying this product, I saw a lot of negative reviews from Amazon.com (USA site) about the widespread issue of customers getting counterfeit cards with slow read/write speed and spoofed storage.

      I decided to buy this product through Amazon.sg (Singapore site) and I'm happy to report that I've received a genuine product.

      I've tested through multiple methods:
      1. Blackmagic Disk Speed on MacOS 10.14
      2. H2testw on Windows 10
      3. Nikon DSLR burst shots (RAW+JPEG)

      For test #1 and #2 above, I get on average a Read speed of about 90 MB/S, Write speed of about 55 MB/S - all in line within the specs.

      For test #3, I compared this with a genuine Sandisk SD card that I use exclusively for photography side by side and it performs the same.

      Maybe I just got lucky, but know that at least this customer got a genuine product. I'd still recommend you to use some software to check the card's read/write speed and test its authenticity.
    • Henrik Nyberg
      5.0 out of 5 stars Fick vad jag betalade för
      Reviewed in Sweden on October 23, 2024
      Tyvärr är minnena långsamma, använder min in en pi 4.
    • Marco
      5.0 out of 5 stars envoi rapide
      Reviewed in Belgium on February 27, 2025
      produit impeccable