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Black rectangular SDXC memory card with gold contacts and red Extreme PRO label

SanDisk

SanDisk Extreme PRO SDSDXDM-256G-GN4IN 256GB SDXC UHS-II V90 memory card

SKU CH-X35S-6VED1 MPN SDSDXDM-256G-GN4IN

A 256GB SDXC card delivering up to 300MB/s read and write speeds with V90 rating for 8K video capture and IP68 durability

  • Card typeFull Size SD
  • TypeSecure Digital Extended Capacity (SDXC)
  • Capacity256GB
  • Speed Class RatingUHS-II / V90
  • Read SpeedUp to 300MB/s Read
  • Write SpeedUp to 300MB/s Write
  • Up to 300 MB/s write clears camera buffers fast
  • V90 rating guarantees 90 MB/s sustained for 8K video
  • 256 GB capacity holds up to 286 minutes of 8K at 30 fps
  • IP68 dust and water resistance plus 6 m drop protection
  • Free RescuePRO Deluxe recovery for two years

Professional UHS-II card for cinema workflows

The SanDisk Extreme PRO SDSDXDM-256G-GN4IN is a 256GB SDXC memory card rated UHS-II and V90. It targets photographers and filmmakers who need sustained write performance for 8K video and high-resolution burst shooting. The card delivers up to 300MB/s read and 300MB/s write speeds with a 90MB/s minimum sustained write guarantee.

UHS-II bus limits and host requirements

UHS-II adds a second row of pins to double the theoretical bus throughput compared with UHS-I. Real-world transfer rates depend entirely on the host device supporting the UHS-II protocol; in a UHS-I slot the card falls back to the slower single-lane speeds. The V90 rating certifies a 90MB/s floor only when the camera or reader implements the video speed class specification.

256GB capacity and recording headroom

At 256GB the card holds roughly 286 minutes of 8K footage at 30 fps or 352 minutes of 4K UHD at 60 fps. Extended sessions beyond those totals require offloading or a second card. The IP68 rating and 6-meter drop tolerance protect the media in harsh environments, while the included two-year RescuePRO Deluxe licence helps recover accidentally deleted files.

Fordele

  • Up to 300 MB/s write clears camera buffers fast
  • V90 rating guarantees 90 MB/s sustained for 8K video
  • 256 GB capacity holds up to 286 minutes of 8K at 30 fps
  • IP68 dust and water resistance plus 6 m drop protection
  • Free RescuePRO Deluxe recovery for two years

Specifikationer

BrandSanDisk
Card typeFull Size SD
SeriesExtreme Pro
ModelSDSDXDM-256G-GN4IN
TypeSecure Digital Extended Capacity (SDXC)
Capacity256GB
Speed Class RatingUHS-II / V90
Read SpeedUp to 300MB/s Read
Write SpeedUp to 300MB/s Write
FeaturesCapture once-in-a-lifetime moments with the SanDisk Extreme PRO SD UHS-II card. Its pro-level performance enables cinema-quality 8K video recording, brilliant high-res image capture, and maximum post-production workflow efficiency. These SDXC memory cards deliver our fastest speeds possible with SD UHS-II cards: write speeds up to 300MB/s, sustained minimum video write speeds of 90MB/s (with V90-capable devices), and card offload speeds up to 300MB/s. The 512GB card can store up to 286 minutes of standard 8K video shot at 30 fps and up to 352 minutes of slow motion 4K UHD video shot
Forsendelsesvægt0.09 kg
Pakkestørrelse140 × 89 × 33 mm

Spørgsmål om denne vare

Which capacity should I pick for 8K video work?

The 256GB card holds up to 286 minutes of 8K video at 30 fps, while the 512GB version doubles that runtime.

What does the 300MB/s write speed mean when I am shooting?

It clears the camera buffer fast enough for continuous 8K recording at 30 fps or 4K UHD at 60 fps without dropped frames.

How does the UHS‑II V90 rating limit real‑world performance?

V90 guarantees a minimum sustained write of 90MB/s, and the UHS‑II interface lets the card reach its rated 300MB/s read and write peaks with a compatible host.

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