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Best Buy customers often prefer the following products when searching for big memory.

If you're looking for something to store and back up your files, you might want to consider buying a big-capacity memory card. These cards are designed to hold large amounts of data so you won't have to worry about running out of storage space. Browse the top-ranked list of big memories below along with associated reviews and opinions.

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  1. Samsung - Pro Ultimate and Adapter 256GB microSDXC Memory Card - Front_Zoom
    Top comment

    "Samsung - Pro Ultimate 256GB microSDXC Memory Card...Samsung - Pro Ultimate 256GB microSDXC Memory Card. Purchased these for my DJI Osmo Pocket 3. ...SD Memory"

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    Product Description

    Step into a new stage of storage with the Samsung PRO Ultimate MicroSD. It supports every ambition from creative pursuits, to professional projects and personal memories with high speed and the compatibility to keep you on top of your game
    See all Memory Cards
    Top comment

    "Samsung - Pro Ultimate 256GB microSDXC Memory Card...Samsung - Pro Ultimate 256GB microSDXC Memory Card. Purchased these for my DJI Osmo Pocket 3. ...SD Memory"

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    Product Description

    Step into a new stage of storage with the Samsung PRO Ultimate MicroSD. It supports every ambition from creative pursuits, to professional projects and personal memories with high speed and the compatibility to keep you on top of your game
    See all Memory Cards
    See all Memory Cards
  2. Insignia™ - USB-C to SD, microSD and CompactFlash Memory Card Reader - Black - Front_Zoom
    Top comment

    "Need to store your videos or tons of pictures from your cellphone? Then get a memory sd card and upload to this device. With in few minutes you be able to load more memories and history to cellphone. ...Memories"

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    Product Description

    Whether you’re filming or taking photos, don’t run out of memory in the middle of a shoot. Transfer and back up files with the Insignia NS-CRDAC1, USB-C to SD, microSD and CompactFlash Memory Card Reader. Simply plug in your card reader with the included USB-C cable to connect the PC, tablet or other device quickly transfer data from your memory cards. USB-A to USB-C adapter enables USB-A port device for more compatibility and backward compatible with USB 2.0 device, if needed. It’s compatible with a wide variety of SD and microSD cards, as well as CompactFlash cards, to keep your creativity flowing without having to pause and delete unwanted files. Finally, its compact design means you can easily fit it in a pocket or bag. Never let a full memory card stop you again.
    See all Memory Card Readers & Adapters
    Top comment

    "Need to store your videos or tons of pictures from your cellphone? Then get a memory sd card and upload to this device. With in few minutes you be able to load more memories and history to cellphone. ...Memories"

    See all customer reviews

    Product Description

    Whether you’re filming or taking photos, don’t run out of memory in the middle of a shoot. Transfer and back up files with the Insignia NS-CRDAC1, USB-C to SD, microSD and CompactFlash Memory Card Reader. Simply plug in your card reader with the included USB-C cable to connect the PC, tablet or other device quickly transfer data from your memory cards. USB-A to USB-C adapter enables USB-A port device for more compatibility and backward compatible with USB 2.0 device, if needed. It’s compatible with a wide variety of SD and microSD cards, as well as CompactFlash cards, to keep your creativity flowing without having to pause and delete unwanted files. Finally, its compact design means you can easily fit it in a pocket or bag. Never let a full memory card stop you again.
    See all Memory Card Readers & Adapters
    See all Memory Card Readers & Adapters
  3. Insignia™ - USB 3.0 SD and microSD Memory Card Reader - Black - Front_Zoom
    Top comment

    "Memory Card Reader...Handy product for using microSD memory cards. Works as expected....Memory stick/ card reader...Bought this memory stick ready and it works well. Great investment for photography."

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    Product Description

    Whether you’re filming or taking photos, don’t run out of memory in the middle of a shoot. Transfer and back up files with the Insignia NS-CRSA1, USB 3.0 to SD and microSD Memory Card Reader. Simply plug in the card reader to your computer, tablet or other device with USB-A female connector to quickly transfer data. It’s backward compatible with USB 2.0 device and wide variety of SD and microSD cards to keep your creativity flowing without having to pause and delete unwanted files. Its compact design and protective cap mean you can easily fit it in a pocket or bag and not have to worry about damaging your connector. Never let a full memory card stop you again.
    See all Memory Card Readers & Adapters
    Top comment

    "Memory Card Reader...Handy product for using microSD memory cards. Works as expected....Memory stick/ card reader...Bought this memory stick ready and it works well. Great investment for photography."

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    Product Description

    Whether you’re filming or taking photos, don’t run out of memory in the middle of a shoot. Transfer and back up files with the Insignia NS-CRSA1, USB 3.0 to SD and microSD Memory Card Reader. Simply plug in the card reader to your computer, tablet or other device with USB-A female connector to quickly transfer data. It’s backward compatible with USB 2.0 device and wide variety of SD and microSD cards to keep your creativity flowing without having to pause and delete unwanted files. Its compact design and protective cap mean you can easily fit it in a pocket or bag and not have to worry about damaging your connector. Never let a full memory card stop you again.
    See all Memory Card Readers & Adapters
    See all Memory Card Readers & Adapters
  4. Insignia™ - USB-C/USB 3.0 to SD and microSD Memory Card Reader - Black - Front_Zoom
    Top comment

    "Memory Card Reader...So glad to get this Memory Card Reader, excellent product....SD Memory Card Reader...I needed to reformat the memory card, but that was no problem"

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    Product Description

    Whether you’re filming or taking photos, don’t run out of memory in the middle of a shoot. Transfer and back up files with the Insignia NS-CRSAC1, USB-C/USB 3.0 to SD and microSD Memory Card Reader. Simply plug in the card reader to your computer, tablet or other device to quickly transfer data. It’s backward compatible with USB 2.0 device and wide variety of SD and microSD cards to keep your creativity flowing without having to pause and delete unwanted files. Its compact design and protective cap mean you can easily fit it in a pocket or bag and not have to worry about damaging your connector. Never let a full memory card stop you again.
    See all Memory Card Readers & Adapters
    Top comment

    "Memory Card Reader...So glad to get this Memory Card Reader, excellent product....SD Memory Card Reader...I needed to reformat the memory card, but that was no problem"

    See all customer reviews

    Product Description

    Whether you’re filming or taking photos, don’t run out of memory in the middle of a shoot. Transfer and back up files with the Insignia NS-CRSAC1, USB-C/USB 3.0 to SD and microSD Memory Card Reader. Simply plug in the card reader to your computer, tablet or other device to quickly transfer data. It’s backward compatible with USB 2.0 device and wide variety of SD and microSD cards to keep your creativity flowing without having to pause and delete unwanted files. Its compact design and protective cap mean you can easily fit it in a pocket or bag and not have to worry about damaging your connector. Never let a full memory card stop you again.
    See all Memory Card Readers & Adapters
    See all Memory Card Readers & Adapters
  5. SanDisk - Extreme PRO 128GB CompactFlash (CF) Memory Card - Front_Zoom
    Top comment

    "SanDisk memory card...SanDisk memory card worked as advertised. Always have had good results with sandisk....This memory card is great for my Canon EOS 7D camera! "

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    Product Description

    Experience fast shot-to-shot performance with this SanDisk Extreme Pro CompactFlash memory card. Transfer speeds of up to 160MB/sec. make moving large files for storage and editing simple, while the 128GB capacity can hold hours of video and thousands of images. This SanDisk Extreme Pro CompactFlash memory card features a robust construction to withstand everyday use.
    See all CompactFlash (CF)
    Top comment

    "SanDisk memory card...SanDisk memory card worked as advertised. Always have had good results with sandisk....This memory card is great for my Canon EOS 7D camera! "

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    Product Description

    Experience fast shot-to-shot performance with this SanDisk Extreme Pro CompactFlash memory card. Transfer speeds of up to 160MB/sec. make moving large files for storage and editing simple, while the 128GB capacity can hold hours of video and thousands of images. This SanDisk Extreme Pro CompactFlash memory card features a robust construction to withstand everyday use.
    See all CompactFlash (CF)
    See all CompactFlash (CF)
  6. SanDisk - 512GB Extreme PRO CFexpress Memory Card - Front_Zoom

    Model: SDCFE-512G-ANCNN
    SKU: 6406845
    Top comment

    "Tons of memory! Great card! Highly recommend for mirrorless camera use!...Memory card...Good memory card to use for cannon and strong doesn't broke at all."

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    Product Description

    Store important documents with this SanDisk Extreme PRO CFexpress card. The RescuePRO deluxe software lets you recover data that has been accidentally deleted, while the 512GB storage capacity provides ample space for files, photos and videos. This SanDisk Extreme PRO CFexpress card features high read and write speeds that efficiently enhance workflow. The SanDisk Extreme Pro CFexpress memory card has 8K video recording capability.
    See all CFexpress
    Top comment

    "Tons of memory! Great card! Highly recommend for mirrorless camera use!...Memory card...Good memory card to use for cannon and strong doesn't broke at all."

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    Product Description

    Store important documents with this SanDisk Extreme PRO CFexpress card. The RescuePRO deluxe software lets you recover data that has been accidentally deleted, while the 512GB storage capacity provides ample space for files, photos and videos. This SanDisk Extreme PRO CFexpress card features high read and write speeds that efficiently enhance workflow. The SanDisk Extreme Pro CFexpress memory card has 8K video recording capability.
    See all CFexpress
    See all CFexpress
  7. SanDisk - Ultra PLUS 512GB microSDXC UHS-I Memory Card - Front_Zoom

    Model: SDSQUBL-512G-AN6IA
    SKU: 6516388
    Top comment

    "Bought this on sale to increase memory for my gopro works as advertised! My old 128 gb is already full and the 512 gb storage ensures more videos to be captured and more memories stored. ...Great memory Card! Great memory Card! Great memory Card!"

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    Product Description

    Save your photos and videos with this SanDisk SDSQUBL-512G-AN6IA Ultra PLUS microSDXC UHS-I memory card. A 512GB storage capacity provides ample space to hold plenty of large media files, while transfer speeds of up to 160MB/sec. offer swift app performance. This SanDisk Ultra PLUS microSDXC UHS-I memory card is resistant to water and shocks for durability.
    See all microSDXC
    Top comment

    "Bought this on sale to increase memory for my gopro works as advertised! My old 128 gb is already full and the 512 gb storage ensures more videos to be captured and more memories stored. ...Great memory Card! Great memory Card! Great memory Card!"

    See all customer reviews

    Product Description

    Save your photos and videos with this SanDisk SDSQUBL-512G-AN6IA Ultra PLUS microSDXC UHS-I memory card. A 512GB storage capacity provides ample space to hold plenty of large media files, while transfer speeds of up to 160MB/sec. offer swift app performance. This SanDisk Ultra PLUS microSDXC UHS-I memory card is resistant to water and shocks for durability.
    See all microSDXC
    See all microSDXC
  8. SanDisk - 1TB microSDXC UHS-I Memory Card for Nintendo Switch - Front_Zoom
    Top comment

    "Great Memory...So much memory, so many games to save on a cool looking memory card....Memory storage its great...Just what i needed to extend my memory storage on my switch."

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    Product Description

    Store favorite games on your Nintendo Switch with this SanDisk UHS-I microSDXC memory card. The 1TB capacity offers ample storage, while the write speeds of up to 90MB/sec. let you move files rapidly. This SanDisk UHS-I microSDXC memory card has a shockproof and waterproof design for reliable durability, and the compatibility with DSLR and video cameras allows for flexible use.
    See all microSDXC
    Top comment

    "Great Memory...So much memory, so many games to save on a cool looking memory card....Memory storage its great...Just what i needed to extend my memory storage on my switch."

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    Product Description

    Store favorite games on your Nintendo Switch with this SanDisk UHS-I microSDXC memory card. The 1TB capacity offers ample storage, while the write speeds of up to 90MB/sec. let you move files rapidly. This SanDisk UHS-I microSDXC memory card has a shockproof and waterproof design for reliable durability, and the compatibility with DSLR and video cameras allows for flexible use.
    See all microSDXC
    See all microSDXC
  9. Samsung - Pro Plus 256GB SDXC Memory Card - Front_Zoom

    Model: MB-SD256S/AM
    SKU: 6540989
    Top comment

    "Great Memory...This memory works really well. Samsung is stable and fast....Awesome Memory Card...I trust it to safeguard my precious memories and important data without fail. In conclusion, the Samsung Pro Plus 256GB SDXC Memory Card has exceeded my expectations in terms of storage capacity, speed, and durability. "

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    Product Description

    Built to last, Samsung's PRO Plus offers extreme performance in a variety of capacities, with robust reliability making this SD card the ideal choice for photographers and other digital media professionals. Use it across your work devices, and continue relying on the brand name in flash memory¹. ¹Source: 2003-Q3 2020 IHS Market data: NAND suppliers' revenue market share.
    See all Secure Digital (SDXC)
    Top comment

    "Great Memory...This memory works really well. Samsung is stable and fast....Awesome Memory Card...I trust it to safeguard my precious memories and important data without fail. In conclusion, the Samsung Pro Plus 256GB SDXC Memory Card has exceeded my expectations in terms of storage capacity, speed, and durability. "

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    Product Description

    Built to last, Samsung's PRO Plus offers extreme performance in a variety of capacities, with robust reliability making this SD card the ideal choice for photographers and other digital media professionals. Use it across your work devices, and continue relying on the brand name in flash memory¹. ¹Source: 2003-Q3 2020 IHS Market data: NAND suppliers' revenue market share.
    See all Secure Digital (SDXC)
    See all Secure Digital (SDXC)
  10. SanDisk - Ultra PLUS 1TB microSDXC UHS-I Memory Card - Front_Zoom

    Model: SDSQUBL-1T00-AN6MA
    SKU: 6516381
    Top comment

    "Go big or don't go...Fine Memory Card, that I have never experienced any problems from....This is a "mini", but it can also come with a full-sized "envelope" for a regular big memory slot."

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    Product Description

    Accommodate high-resolution images and video files with this SanDisk SDSQUBL-1T00-AN6MA Ultra PLUS microSDXC card. The 160MB/sec. transfer speeds let you save time when moving photos and videos, while the 1TB storage capacity provides plenty of room for large multimedia files. This SanDisk Ultra PLUS microSDXC card with is compatible Android smartphones and tablets, letting you offload data faster, and the shockproof design ensures durability.
    See all microSDXC
    Top comment

    "Go big or don't go...Fine Memory Card, that I have never experienced any problems from....This is a "mini", but it can also come with a full-sized "envelope" for a regular big memory slot."

    See all customer reviews

    Product Description

    Accommodate high-resolution images and video files with this SanDisk SDSQUBL-1T00-AN6MA Ultra PLUS microSDXC card. The 160MB/sec. transfer speeds let you save time when moving photos and videos, while the 1TB storage capacity provides plenty of room for large multimedia files. This SanDisk Ultra PLUS microSDXC card with is compatible Android smartphones and tablets, letting you offload data faster, and the shockproof design ensures durability.
    See all microSDXC
    See all microSDXC
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