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Deal.ai › SanDisk › Memory Cards
SANDISK
SanDisk MicroSD Express MicroSDXC 512GB

SanDisk MicroSD Express MicroSDXC 512GB

4.7(1,504 ratings)

Best price now

$148.99at NeweggChecked Nov 8

Compared across 2 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.

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Price facts

  • Last seen at $148.99 at Newegg on Nov 8.
  • Checked at 2 stores.

Our take on the SanDisk MicroSD Express MicroSDXC 512GB

The SanDisk MicroSD Express 512GB is a microSDXC card built on the SD Express interface, with sequential read speeds up to 880 MB/s and write speeds up to 650 MB/s. That is far faster than ordinary UHS-I cards, which typically top out around 100 MB/s, and it carries V30, U3, Class 10 and A1 ratings for sustained video capture and app performance. It suits Nintendo Switch 2 owners, handheld PC users and anyone moving large files who needs the Express slot their device provides. Buyers should check compatibility first: MicroSD Express cards only run at full speed in Express-capable slots and fall back to slower UHS-I speeds elsewhere.

Best forNintendo Switch 2 storage expansionHandheld gaming PCs with Express slotsLarge game and media librariesFast file transfers between devices
Pros
  • Read speeds up to 880 MB/s, well beyond UHS-I cards
  • Write speeds up to 650 MB/s for quick large-file copies
  • V30 and U3 ratings handle sustained video recording
  • A1 app performance rating for on-card applications
  • 512GB holds a large game library in one card
Cons
  • Full speed needs a MicroSD Express slot; older devices run it at UHS-I pace
  • Costs more than equivalent-capacity UHS-I cards
  • Not usable in standard SD slots without an adapter
  • Overkill for cameras and phones that cap at UHS-I

SanDisk MicroSD Express MicroSDXC 512GB prices at every store

  • NeweggNew

    In stock

    $148.99Free shippingChecked Nov 8
    Visit Newegg
  • Best BuyNew

    In stock

    $199.99Free shippingChecked Nov 8
    Visit Best Buy

Store links may earn us a commission. Some prices via Klarna.

SanDisk MicroSD Express MicroSDXC 512GB price history

$148.99$148.99
Nov 8Nov 9

Lowest price we've seen: $148.99 on Nov 8 at Newegg. Tracked across 2 stores since Nov 8.

What reviewers say

  • 4.7 / 51,504 ratings

Owners rate it highly, with 4.7 out of 5 across more than 1,500 ratings. Most praise the speed and reliability in Express-capable devices, while some note the premium over standard cards and the compatibility limits.

What people mention
  • SpeedPraisedOwners report much faster transfers and load times than standard microSD cards.
  • CompatibilityMixedIt shines in Express slots but drops to UHS-I speeds in older devices.
  • ValueCriticisedSome buyers feel it costs more than a same-capacity UHS-I card is worth to them.
  • CapacityPraised512GB is enough for large game and media libraries without swapping cards.
  • ReliabilityPraisedReviewers describe steady performance with no corruption or dropouts.

Specifications

Video Speed Class
V30Source
SD Type
microSDXCSource
Memory Size
512 GBSource
Wi-Fi
NoSource

Questions and answers

Will this work in a Nintendo Switch 2?
Yes. The Switch 2 uses MicroSD Express, so this card runs at its full rated speed there. Original Switch models use standard microSD and will not get the Express speed.
Is it faster than a regular microSD card?
In an Express slot, yes: reads up to 880 MB/s and writes up to 650 MB/s versus roughly 100 MB/s for typical UHS-I cards. In a UHS-I slot it falls back to that slower pace.
Can I use it in a camera or phone?
It fits any microSDXC slot, but most cameras and phones only support UHS-I, so you would see standard speeds. Check that your device lists microSDXC support.
What is the V30 and A1 rating for?
V30 guarantees a sustained write speed suitable for 4K video, and A1 indicates app performance for running software stored on the card. Both matter for recording and gaming.
Does it come with an SD adapter?
Retail packs usually include a full-size SD adapter so the card fits standard SD slots. Check the pack contents, since bundle contents can vary by seller.
Is 512GB enough for a game library?
For most players, yes. Modern games run from a few gigabytes to around 30GB each, so 512GB holds a large collection before you need a second card.
Where is the SanDisk MicroSD Express MicroSDXC 512GB cheapest?
At Newegg, for $148.99, as of our latest check.
What do buyers say about the SanDisk MicroSD Express MicroSDXC 512GB?
Rated 4.7 out of 5 from 1,504 ratings.
Where can I buy the SanDisk MicroSD Express MicroSDXC 512GB?
2 stores we checked sell it, including Newegg, Best Buy.

Stores we've priced the SanDisk MicroSD Express MicroSDXC 512GB at

  • Best Buy deals and prices
  • Newegg deals and prices

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Speed Class
Class 10Source
App Performance Class
A1Source
Write Speed (MB/s)
650Source
UHS Interface
UHS-ISource
UHS Speed Class
U3Source
Read Speed (MB/s)
880Source