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Best Buy customers often prefer the following products when searching for mobile phone storage.

You've got a lot of photos, videos, and other files on your phone. But you don't want to fill up your internal storage with so many that you run out of space before you've even gotten started. Fortunately, there are plenty of ways to add storage to your phone. Browse the top-ranked list of mobile phone storage below along with associated reviews and opinions.

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  1. Samsung - PRO Endurance 32GB microSDXC SD Memory Card - Front_Zoom
    Top comment

    "Perfect little storage...Great storage...Love anything Samsung, but this had great storage, helps fast and for multiple devices"

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    Product Description

    Extreme endurance for monitoring devices Built to last up to hours of recording (256GB model) Stands up against magnets, X-rays, water, drop and more. Record and play in FHD and 4K Engineered to deliver long lasting performance.
    See all Memory Cards
    Top comment

    "Perfect little storage...Great storage...Love anything Samsung, but this had great storage, helps fast and for multiple devices"

    See all customer reviews

    Product Description

    Extreme endurance for monitoring devices Built to last up to hours of recording (256GB model) Stands up against magnets, X-rays, water, drop and more. Record and play in FHD and 4K Engineered to deliver long lasting performance.
    See all Memory Cards
    See all Memory Cards
  2. Samsung - PRO Endurance 64GB microSDXC SD Memory Card - Front_Zoom
    Top comment

    "This product was super easy to install in my phone, there was enough storage on this to upload all of my pictures & all my music and still have space left over for all the new pictures & music that i will be putting on my phone. ...Most reliable storage for security camera for indoor and dash camera"

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    Product Description

    Extreme endurance for monitoring devices Built to last up to hours of recording (256GB model) Stands up against magnets, X-rays, water, drop and more. Record and play in FHD and 4K Engineered to deliver long lasting performance.
    See all Memory Cards
    Top comment

    "This product was super easy to install in my phone, there was enough storage on this to upload all of my pictures & all my music and still have space left over for all the new pictures & music that i will be putting on my phone. ...Most reliable storage for security camera for indoor and dash camera"

    See all customer reviews

    Product Description

    Extreme endurance for monitoring devices Built to last up to hours of recording (256GB model) Stands up against magnets, X-rays, water, drop and more. Record and play in FHD and 4K Engineered to deliver long lasting performance.
    See all Memory Cards
    See all Memory Cards
  3. Samsung - PRO Endurance 256GB MicroSDXC Memory Card - Front_Zoom
    Top comment

    "Extra storage!...It thankfully helped free up extra space from my 128 gb phone....nice storage...adds enough storage to store images and videos on mobile devices"

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    Product Description

    Extreme endurance for monitoring devices Built to last up to hours of recording (256GB model) Stands up against magnets, X-rays, water, drop and more. Record and play in FHD and 4K Engineered to deliver long lasting performance.
    See all Memory Cards
    Top comment

    "Extra storage!...It thankfully helped free up extra space from my 128 gb phone....nice storage...adds enough storage to store images and videos on mobile devices"

    See all customer reviews

    Product Description

    Extreme endurance for monitoring devices Built to last up to hours of recording (256GB model) Stands up against magnets, X-rays, water, drop and more. Record and play in FHD and 4K Engineered to deliver long lasting performance.
    See all Memory Cards
    See all Memory Cards
  4. SanDisk - Extreme PLUS 64GB microSDXC UHS-I Memory Card - Front_Zoom

    Model: SDSQXBU-064G-AN6MA
    SKU: 6495764
    Top comment

    "Flash Storage...Excellent flash storage for the price works well in phone...Just what i needed to increase storage space in my phone before a vacation."

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    Product Description

    Store high-quality images with this 64GB SanDisk SDSQXBU-064G-AN6MA Extreme Plus MicroSDXC memory card. Shot speeds of up to 90 MB/sec. allow fast photo and video processing, while the 64GB capacity holds large media files. Featuring QuickFlow technology and read speeds of up to 200 MB/sec., this SanDisk Extreme Plus MicroSDXC memory card supports fast data transfer.
    See all microSDXC
    Top comment

    "Flash Storage...Excellent flash storage for the price works well in phone...Just what i needed to increase storage space in my phone before a vacation."

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    Product Description

    Store high-quality images with this 64GB SanDisk SDSQXBU-064G-AN6MA Extreme Plus MicroSDXC memory card. Shot speeds of up to 90 MB/sec. allow fast photo and video processing, while the 64GB capacity holds large media files. Featuring QuickFlow technology and read speeds of up to 200 MB/sec., this SanDisk Extreme Plus MicroSDXC memory card supports fast data transfer.
    See all microSDXC
    See all microSDXC
  5. Samsung - Pro Plus 128 GB microSDXC Memory Card - Front_Zoom

    Model: MB-MD128SB/AM
    SKU: 6540993
    Top comment

    "Great product, easy to install, lots of storage. Love this!...Works with Sansung phones"

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    Product Description

    Your new go-to card + reader combo, the Micro SD PRO Plus + Adapter makes capturing seamless 4K video on compatible phones or drones a breeze. Plus, the expanded storage provides you the freedom to play more high-performance and intensive games on your tablet or gaming device. It’s all the extra space you need from a brand you can count on.
    See all microSDXC
    Top comment

    "Great product, easy to install, lots of storage. Love this!...Works with Sansung phones"

    See all customer reviews

    Product Description

    Your new go-to card + reader combo, the Micro SD PRO Plus + Adapter makes capturing seamless 4K video on compatible phones or drones a breeze. Plus, the expanded storage provides you the freedom to play more high-performance and intensive games on your tablet or gaming device. It’s all the extra space you need from a brand you can count on.
    See all microSDXC
    See all microSDXC
  6. Samsung - Pro Plus  256GB microSDXC Memory Card - Front_Zoom

    Model: MB-MD256SB/AM
    SKU: 6540997
    Top comment

    "Excellent price. Added to my Samsung phone to extend my storage space...Additional phone storage...Great for adding phone storage for pictures and videos."

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    Product Description

    Your new go-to card + reader combo, the Micro SD PRO Plus + Adapter makes capturing seamless 4K video on compatible phones or drones a breeze. Plus, the expanded storage provides you the freedom to play more high-performance and intensive games on your tablet or gaming device. It’s all the extra space you need from a brand you can count on.
    See all microSDXC
    Top comment

    "Excellent price. Added to my Samsung phone to extend my storage space...Additional phone storage...Great for adding phone storage for pictures and videos."

    See all customer reviews

    Product Description

    Your new go-to card + reader combo, the Micro SD PRO Plus + Adapter makes capturing seamless 4K video on compatible phones or drones a breeze. Plus, the expanded storage provides you the freedom to play more high-performance and intensive games on your tablet or gaming device. It’s all the extra space you need from a brand you can count on.
    See all microSDXC
    See all microSDXC
  7. SanDisk - Extreme 256GB microSDXC UHS-I Memory Card for Gaming - Front_Zoom
    Top comment

    "More Switch Storage...The item is doing exactly what I needed, which is give me more storage on my Switch, so I can have as many games downloaded as possible....Tons of 4k storage and great quality when recording."

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    Product Description

    Optimized for mobile gaming, the 256GB Extreme UHS-I microSDXC Memory Card from SanDisk features a storage capacity of 256GB and supports maximum read speeds of up to190 MB/s and maximum write speeds of up to 130 MB/s. This card has also been designed with the V30 Video Speed Class rating, which guarantees minimum write speeds of at least 30 MB/s. All of this allows for users to immerse themselves in AAA, 3D, and VR gaming, as well as extreme sports videography and photography at resolutions of Ultra HD 4K (3840 x 2160) and Full HD (1920 x 1080). While this card has been designed for cameras that are UHS-I / V30 compatible, it may be used in devices that do not support UHS-I / V30. However, bear in mind that this card will then default to your device's speed class and bus rating, such as UHS-I and U3, which also support minimum write speeds of 30 MB/s, UHS-I and U1, which support minimum write speeds of 10 MB/s, or Class 10, which also supports minimum write speeds of 10 MB/s. Aside from support for UHS-I, V30, and U3, SanDisk also built this card with support for the Application Performance Class 2 (A2) spec, which includes optimizations to give Android users an improved mobile experience, delivering faster mobile app performance. The A2 spec allows the card to manage random read input-output access per second (IOPS) operations so it can quickly open apps and process accompanying tasks, such as audio, graphics, saved profiles, and in-app permissions. As with most SanDisk media, this memory card is able to withstand temperatures from -13 to 185°F, allowing you to take this card with you into extreme environments, such as snow and deserts. Protection is provided by a limited lifetime warranty.
    See all microSDXC
    Top comment

    "More Switch Storage...The item is doing exactly what I needed, which is give me more storage on my Switch, so I can have as many games downloaded as possible....Tons of 4k storage and great quality when recording."

    See all customer reviews

    Product Description

    Optimized for mobile gaming, the 256GB Extreme UHS-I microSDXC Memory Card from SanDisk features a storage capacity of 256GB and supports maximum read speeds of up to190 MB/s and maximum write speeds of up to 130 MB/s. This card has also been designed with the V30 Video Speed Class rating, which guarantees minimum write speeds of at least 30 MB/s. All of this allows for users to immerse themselves in AAA, 3D, and VR gaming, as well as extreme sports videography and photography at resolutions of Ultra HD 4K (3840 x 2160) and Full HD (1920 x 1080). While this card has been designed for cameras that are UHS-I / V30 compatible, it may be used in devices that do not support UHS-I / V30. However, bear in mind that this card will then default to your device's speed class and bus rating, such as UHS-I and U3, which also support minimum write speeds of 30 MB/s, UHS-I and U1, which support minimum write speeds of 10 MB/s, or Class 10, which also supports minimum write speeds of 10 MB/s. Aside from support for UHS-I, V30, and U3, SanDisk also built this card with support for the Application Performance Class 2 (A2) spec, which includes optimizations to give Android users an improved mobile experience, delivering faster mobile app performance. The A2 spec allows the card to manage random read input-output access per second (IOPS) operations so it can quickly open apps and process accompanying tasks, such as audio, graphics, saved profiles, and in-app permissions. As with most SanDisk media, this memory card is able to withstand temperatures from -13 to 185°F, allowing you to take this card with you into extreme environments, such as snow and deserts. Protection is provided by a limited lifetime warranty.
    See all microSDXC
    See all microSDXC
  8. Samsung - Pro Plus 512GB microSDXC Memory Card - Front_Zoom

    Model: MB-MD512SB/AM
    SKU: 6540990
    Top comment

    "Perfect storage expansion for cell phone....Fast and easy to use, was perfect for expanding the storage on my Samsung Note 20 ultra....Extra storage for camera....Great storage! Needed to upgrade storage capacity for our camera and this was perfect."

    See all customer reviews

    Product Description

    Your new go-to card + reader combo, the Micro SD PRO Plus + Adapter makes capturing seamless 4K video on compatible phones or drones a breeze. Plus, the expanded storage provides you the freedom to play more high-performance and intensive games on your tablet or gaming device. It’s all the extra space you need from a brand you can count on.
    See all microSDXC
    Top comment

    "Perfect storage expansion for cell phone....Fast and easy to use, was perfect for expanding the storage on my Samsung Note 20 ultra....Extra storage for camera....Great storage! Needed to upgrade storage capacity for our camera and this was perfect."

    See all customer reviews

    Product Description

    Your new go-to card + reader combo, the Micro SD PRO Plus + Adapter makes capturing seamless 4K video on compatible phones or drones a breeze. Plus, the expanded storage provides you the freedom to play more high-performance and intensive games on your tablet or gaming device. It’s all the extra space you need from a brand you can count on.
    See all microSDXC
    See all microSDXC
  9. Samsung - Pro Plus + Adapter 128GB microSDXC Memory Card, Up-to 180MB/s, UHS-l, C10,U3,V30,A2. - Front_Zoom
    Top comment

    "Perfect storage for a great value...Perfect storage I needed for Nintendo additional storage and for a great value....Trac phones storage extender...GREAT BIRTHDAY GIFT AND. Works with track phones!"

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    Product Description

    Your new go-to card + adapter combo, the Micro SD PRO Plus + Adapter makes capturing seamless 4K video on compatible phones or drones a breeze. Plus, the expanded storage provides you the freedom to play more high-performance and intensive games on your tablet or gaming device. It’s all the extra space you need from a brand you can count on.
    See all microSDXC
    Top comment

    "Perfect storage for a great value...Perfect storage I needed for Nintendo additional storage and for a great value....Trac phones storage extender...GREAT BIRTHDAY GIFT AND. Works with track phones!"

    See all customer reviews

    Product Description

    Your new go-to card + adapter combo, the Micro SD PRO Plus + Adapter makes capturing seamless 4K video on compatible phones or drones a breeze. Plus, the expanded storage provides you the freedom to play more high-performance and intensive games on your tablet or gaming device. It’s all the extra space you need from a brand you can count on.
    See all microSDXC
    See all microSDXC
  10. Samsung - Pro Plus 256GB microSDXC Memory Card - Front_Zoom

    Model: MB-MD256SA/AM
    SKU: 6540988
    Top comment

    "Prepaid phone users will love it...Perfect for prepaid phones with lower storage space....Practically unlimited storage for expandable storage phones as well as digital cameras."

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    Product Description

    Your new go-to card + adapter combo, the Micro SD PRO Plus + Adapter makes capturing seamless 4K video on compatible phones or drones a breeze. Plus, the expanded storage provides you the freedom to play more high-performance and intensive games on your tablet or gaming device. It’s all the extra space you need from a brand you can count on.
    See all microSDXC
    Top comment

    "Prepaid phone users will love it...Perfect for prepaid phones with lower storage space....Practically unlimited storage for expandable storage phones as well as digital cameras."

    See all customer reviews

    Product Description

    Your new go-to card + adapter combo, the Micro SD PRO Plus + Adapter makes capturing seamless 4K video on compatible phones or drones a breeze. Plus, the expanded storage provides you the freedom to play more high-performance and intensive games on your tablet or gaming device. It’s all the extra space you need from a brand you can count on.
    See all microSDXC
    See all microSDXC
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