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Small red microSDXC card with SanDisk Extreme PRO branding

SanDisk

SanDisk Extreme PRO 512GB microSDXC A2 U3 V30 memory card

SKU CH-SP37-EH8CD

512 GB microSDXC card with UHS-I U3 V30 A2 ratings for 4K UHD video and fast app loading

  • Card typeMicroSD
  • TypemicroSDXC
  • Capacity512GB
  • Speed Class RatingClass 10
  • Read SpeedUp to 200 MB/S
  • Write SpeedUp to 90 MB/S

Capacity 512GB

  • Fast app loading with A2-rated performance
  • Smooth 4K UHD video capture at up to 90 MB/s write speed
  • Quick file transfers with read speeds up to 200 MB/s
  • Ample 512 GB capacity for extensive media storage
  • Built to withstand extreme environments for reliable use

SanDisk Extreme PRO 512GB microSDXC

This SanDisk Extreme PRO microSDXC card delivers 512GB of storage with UHS-I interface. It carries A2, U3, V30 and Class 10 ratings for sustained performance. Read speeds reach up to 200MB/s and write speeds up to 90MB/s. The card is built for 4K UHD video capture and fast app loading on compatible devices.

Suited for action cameras drones and Android phones

Creators recording 4K UHD video or shooting burst photos benefit from the V30 sustained write rating. The A2 qualification speeds up app launch and in-app operations on supported smartphones. Buyers who require guaranteed write speeds beyond 90MB/s for higher-bitrate workflows should consider cards with higher video speed class ratings.

V30 sustained write speed for 4K UHD

The V30 marking guarantees a minimum sequential write of 30MB/s, which is the deciding factor for reliable 4K UHD recording. U3 and Class 10 provide the same 30MB/s floor for broader device compatibility. If your device or workflow demands a higher guaranteed minimum write speed, this card will not meet that requirement.

Highlights

  • Fast app loading with A2-rated performance
  • Smooth 4K UHD video capture at up to 90 MB/s write speed
  • Quick file transfers with read speeds up to 200 MB/s
  • Ample 512 GB capacity for extensive media storage
  • Built to withstand extreme environments for reliable use

Specifications

BrandSanDisk
Card typeMicroSD
SeriesExtreme Pro
ModelSDSQXCD-512G-GN6MA
Part NumberSDSQXCD-128G-GN6MA
TypemicroSDXC
Capacity512GB
Speed Class RatingClass 10
Read SpeedUp to 200 MB/S
Write SpeedUp to 90 MB/S

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Questions about this item

How do I insert the SanDisk Extreme PRO 512GB microSDXC card and what step do people often miss?

Slide the card label-side up into the microSDXC slot until it clicks; the step many miss is confirming the host device supports UHS-I U3 V30 so the card can reach its 200 MB/s read and 90 MB/s write ratings.

What maintenance or replacement will this 512GB microSDXC card need over time?

No scheduled maintenance is required; replace the card if write speeds drop well below the rated 90 MB/s or if the device reports read errors, as flash memory has a finite number of program/erase cycles.

What limit appears first when recording 4K UHD video continuously on this A2 U3 V30 card?

The sustained write ceiling of 90 MB/s is the first bottleneck; once the camera's bit-rate exceeds that figure the card cannot keep up and recording may stop or drop frames.

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