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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

4.8 4.8 out of 5 stars 28,119 ratings

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Eligible for Return, Refund or Replacement within 30 days of receipt
This item can be returned in its original condition for a full refund or replacement within 30 days of receipt.
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400GB

Purchase options and add-ons

Brand SanDisk
Model Name SDSQUAR-400G-GN6MA
Flash Memory Type Micro SDXC
Memory Storage Capacity 400 GB
Compatible Devices Tablet, Camera, Smartphone

About this item

  • 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)
  • Order with your Alexa enabled device. Just ask "Alexa, order SanDisk microSD."

Frequently bought together

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Sold by Memory-Warehouse and ships from Amazon Fulfillment.
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$348.00
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Only 1 left in stock - order soon.
Sold by Next1GenTech (Serial Numbers Recorded) and ships from Amazon Fulfillment.
Nintendo Switch
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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
SanDisk 400GB Ultra MicroSDXC UHS-I Memory Card with Adapter - 100MB/s, C10, U1, Full HD, A1, Micro SD Card - SDSQUAR-400G-GN6MA
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SanDisk Ultra 400 GB UHS-I microSDXC
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Price$63.99-42% $34.99
List:$59.99
$44.99-5% $26.73
List:$27.99
-13% $19.99
Typical:$22.99
$55.99
Delivery
Get it as soon as Wednesday, Mar 20
Get it as soon as Wednesday, Mar 20
Get it as soon as Wednesday, Mar 20
Get it as soon as Wednesday, Mar 20
Get it as soon as Wednesday, Mar 20
Get it as soon as Wednesday, Mar 20
Customer Ratings
Easy to install
4.6
4.7
4.7
4.7
4.5
4.6
Storage Capacity
4.5
4.6
4.6
4.6
4.5
4.7
Value for money
4.5
4.5
4.5
4.5
4.2
4.5
Durability
4.6
4.6
4.6
4.7
Easy to use
5.0
5.0
4.5
Sold By
Memory-Warehouse
Amazon.com
Amazon.com
Amazon.com
Amazon.com
DEALS BUDDY (SN # RECORDED TO PREVENT FRAUD)
flash memory type
Micro SDXC
Micro SDXC
Micro SDXC
Micro SDXC
Micro SDXC
Micro SDXC
memory capacity
400 GB
512 GB
512 GB
256 GB
256 GB
400 GB
speed class
class 10
class 10
class 10
class 10
class 10
class 10
write speed
150 MB per second
130 MB per second
130 MB per second
10 MB per second
read speed
100 megabytes per second
150 megabytes per second
190 megabytes per second
190 megabytes per second
130 megabytes per second
120 megabytes per second

Product information

Warranty & Support

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

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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


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What's in the box

  • MicroSD
  • Adapter
  • Product Description

    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.

    Top Brand: SanDisk

    Highly Rated
    4.7/5 star rating from 100K+ customer ratings
    Trending
    100K+ orders for this brand in past 3 months
    Low Returns
    Customers usually keep items from this brand

    From the manufacturer

    m4_Desktop

    Important information

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    Customer reviews

    4.8 out of 5 stars
    4.8 out of 5
    28,119 global ratings
    Cheap way to add storage to some computers...
    5 Stars
    Cheap way to add storage to some computers...
    I bought this to add storage capacity to a SurfaceBook with a 512GB SSD. It adds 366GB of usable space which shows up as a separate USB drive in my computer's base directory. If you have a computer with a dedicated SD card slot, this MicroSD card can expand your laptop's storage without protruding beyond the edge of the notebook chassis if used with an adapter in place of a regular SD card (see the photos for how this works).And now the price for 400GB is a semi-reasonable $249, making this roughly $.62/gb. The cost per gigabyte sweet spot seems to lie at the 32-64GB level, with SanDisk storage in that size range costing $.30/gb and Samsung roughly the same. At this price, it's cheaper to throw a MicroSD card in a slot than to try to add storage to a non-upgradeable computer like the MacBook Pro or SurfaceBook. But if you do go this route, remember that flash memory of this sort is less-reliable than a disk. Don't use it for irreplaceable or mission-critical content.I use this BASEQI Aluminum MicroSD Adapter for Microsoft Surface Book & Surface Book 2 13.5" adapter. Other manufacturers also make adapters that permit a MicroSDXC card to be used in place of an SD card as a semi-permanent addition to laptop memory. The adapter allows the card to fit entirely within the laptop frame (usually impossible with full-size SD cards in modern laptops which only provide shallow ports), becoming nearly because the adapter's slim exterior portion matches the laptop's surface. Search the adapter maker's other listings and you will find similar products for MacBook Pros with SD card slots.Throughput between this and the laptop's internal SSD is passable, not great, averaging about 30 MB/sec with a folder filled with pictures. See pictures below for input and output benchmarks.
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    Top reviews from the United States

    Reviewed in the United States on February 6, 2024
    Capacity: 400GBVerified Purchase
    Reviewed in the United States on February 29, 2024
    Capacity: 400GBVerified Purchase
    One person found this helpful
    Report
    Reviewed in the United States on October 21, 2019
    Capacity: 400GBVerified Purchase
    2 people found this helpful
    Report
    Reviewed in the United States on December 30, 2023
    Capacity: 400GBVerified Purchase
    Reviewed in the United States on January 18, 2019
    Capacity: 400GBVerified Purchase
    Reviewed in the United States on November 20, 2023
    Capacity: 400GBVerified Purchase
    Reviewed in the United States on February 5, 2024
    Capacity: 400GBVerified Purchase

    Top reviews from other countries

    Translate all reviews to English
    taka48106
    5.0 out of 5 stars 安定している。
    Reviewed in Japan on January 17, 2019
    Capacity: 400GBVerified Purchase
    One person found this helpful
    Report
    Amazon カスタマー
    2.0 out of 5 stars 書き込み遅し
    Reviewed in Japan on December 14, 2019
    Capacity: 400GBVerified Purchase
    3 people found this helpful
    Report
    Raymond
    5.0 out of 5 stars Working great and definitely authentic. Just make sure its sold by Amazon SG or Amazon US.
    Reviewed in Singapore on November 18, 2020
    Capacity: 400GBVerified Purchase
    Eve
    5.0 out of 5 stars Great product!
    Reviewed in Australia on November 9, 2018
    Capacity: 400GBVerified Purchase
    3 people found this helpful
    Report
    Charlierayden
    5.0 out of 5 stars Funciona perfectamente
    Reviewed in Spain on January 29, 2024
    Capacity: 400GBVerified Purchase