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Tiny red and black microSDXC card with full-size SD adapter

SanDisk

SanDisk Extreme PRO microSDXC 512GB UHS-I U3 V30 A2 250MB/s SDSQXCJ-512G-GS6MA memory card

SKU CH-GTKS-C8EQK

512 GB microSDXC card rated U3, V30 and A2 with up to 250 MB/s read and 170 MB/s write for 4K UHD video

  • Card typeMicroSD
  • TypemicroSDXC
  • Capacity512GB
  • Speed Class RatingUHS-I, U3, V30, 4K, A2
  • Read SpeedUp to 250MB/s
  • Write SpeedUp to 170MB/s

Capacity 512GB

  • Capture 4K UHD video smoothly with U3 and V30 speed ratings
  • Offload files faster at up to 250MB/s read speed using QuickFlow technology
  • Load apps quickly on Android devices with A2 application performance rating
  • Withstand harsh environments thanks to waterproof, shockproof, X-ray proof and magnet proof design
  • Record longer sessions with 512GB capacity for high-resolution content

512GB microSDXC for 4K capture

The SanDisk Extreme PRO microSDXC card delivers 512GB of UHS-I storage rated U3, V30 and A2. Read speeds reach up to 250MB/s and write speeds up to 170MB/s. It includes a full-size SD adapter for broad device compatibility. The card is built to withstand water, shock, X-rays, magnets and humidity.

Ideal for drones, action cams and Android expansion

Photographers and videographers recording 4K UHD or 5K point-of-view footage will benefit from the sustained V30 write rating. Android users and handheld console owners gain faster app loading with A2 performance. Buyers who need sustained write throughput beyond 170MB/s for higher-bitrate codecs should consider cards with faster speed classes.

V30 rating guarantees 30MB/s minimum sustained write

The Video Speed Class V30 marking ensures the card maintains at least 30MB/s sequential write, which is the threshold for reliable 4K UHD recording. This single spec determines whether the card matches your camera’s bitrate requirements.

Points forts

  • Capture 4K UHD video smoothly with U3 and V30 speed ratings
  • Offload files faster at up to 250MB/s read speed using QuickFlow technology
  • Load apps quickly on Android devices with A2 application performance rating
  • Withstand harsh environments thanks to waterproof, shockproof, X-ray proof and magnet proof design
  • Record longer sessions with 512GB capacity for high-resolution content

Caractéristiques

BrandSanDisk
Card typeMicroSD
SeriesExtreme Pro
ModelSDSQXCJ-512G-GS6MA
Part NumberSDSQXCJ-512G-GS6MA
TypemicroSDXC
Capacity512GB
Speed Class RatingUHS-I, U3, V30, 4K, A2
Read SpeedUp to 250MB/s
Write SpeedUp to 170MB/s
FeaturesSpeed class ratings of U3 and V30.
Offload your content faster with SANDISK QuickFlow technology.
Waterproof, humidity proof, shock proff, X-ray proof, and magnet proof.

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Questions sur cet article

Which host device interface is required to reach the 250 MB/s read speed?

A UHS-I compatible slot is needed; the card delivers up to 250 MB/s read when the host supports that interface.

Will the included adapter let me use this microSDXC card in a legacy full-size SD slot that only supports SDHC?

The adapter provides mechanical fit, but the host must support SDXC capacity; an SDHC-only slot cannot address 512 GB.

How can I verify the card is achieving its rated 170 MB/s write performance after setup?

Run a sequential write benchmark with a UHS-I reader; sustained results near 170 MB/s confirm the V30 rating is being met.

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