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SanDisk Extreme PRO 128GB SDXC memory card, black with red label

SanDisk

SanDisk Extreme PRO 128GB UHS-I U3 SDXC Memory Card

SKU CH-ZFTG-KC2KE

A 128GB SDXC card with UHS-I U3 and V30 ratings, read speeds up to 250MB/s and write speeds up to 120MB/s for 4K UHD video

  • Read speeds up to 250MB/s accelerate file transfers
  • Write speeds up to 120MB/s sustain 4K UHD recording
  • U3 and V30 ratings guarantee minimum 30MB/s write performance
  • 128GB capacity stores hours of high-resolution media
  • Built to withstand harsh conditions for reliable data protection

128 GB SDXC for 4K UHD workflows

This SanDisk Extreme PRO card delivers 128 GB of UHS-I storage built for cameras that record 4K UHD video. Read speeds reach 250 MB/s and write speeds reach 120 MB/s to keep up with continuous burst shooting. The V30 and U3 speed classes guarantee sustained performance for professional-grade capture. It suits serious creators who need reliable capacity in a single card.

V30 and U3 speed classes sustain 4K recording

The decisive specification is the combined V30 and U3 rating, which certifies a minimum sequential write speed of 30 MB/s. That threshold is what allows uninterrupted 4K UHD video and Full HD slow-motion capture without dropped frames. Cards lacking these classes cannot guarantee the same recording stability. Buyers whose cameras demand faster sustained write rates should verify their device requirements first.

QuickFlow and Memory Zone streamline offload

The bundle includes SanDisk QuickFlow technology and the Memory Zone desktop app to accelerate post-shoot workflows. QuickFlow optimises the transfer path between card and computer for highly efficient UHS-I offloads. Memory Zone adds automated backup, organisation and file transfer tools in one interface. Photographers who already use a different ingest system gain no extra benefit from these utilities.

Highlights

  • Read speeds up to 250MB/s accelerate file transfers
  • Write speeds up to 120MB/s sustain 4K UHD recording
  • U3 and V30 ratings guarantee minimum 30MB/s write performance
  • 128GB capacity stores hours of high-resolution media
  • Built to withstand harsh conditions for reliable data protection

Specifications

No published specifications for this item yet.

Questions about this item

What does the 250MB/s read speed mean when I am offloading footage to my computer?

It shows the maximum burst rate the card can deliver to a UHS-I reader, so large 128GB transfers finish faster than with slower cards.

How does the UHS-I interface affect real-world write performance?

The card carries U3 and V30 ratings, guaranteeing a minimum 30MB/s sustained write speed for 4K video.

Will this card fit in my camera's standard SD slot?

Yes, it uses the regular SDXC form factor that matches every full-size SD slot.

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