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A standard SDXC card with SanDisk Extreme PRO branding in red and gold

SanDisk

SanDisk Extreme PRO 1TB UHS-I U3 SDXC Memory Card

SKU CH-WW12-QDN8B

A 1 TB SDXC card with UHS-I U3 and V30 ratings, read speeds up to 250 MB/s and write speeds up to 170 MB/s for 4K UHD video and fast transfers

  • Read speeds up to 250MB/s accelerate file transfers
  • Write speeds up to 170MB/s support continuous burst shooting
  • V30 and U3 ratings guarantee smooth 4K UHD recording
  • 1TB capacity stores extensive high-resolution media
  • Durable construction protects data in challenging conditions

Extreme PRO SDXC for professionals

The SanDisk Extreme PRO 1TB UHS-I U3 SDXC card targets photographers and videographers who need reliable high-capacity storage for 4K UHD workflows. It delivers read speeds up to 250MB/s and write speeds up to 170MB/s with U3 and V30 ratings. The 1TB capacity holds extensive high-resolution libraries without frequent swaps.

QuickFlow technology and Memory Zone app

Updated SanDisk QuickFlow technology streamlines UHS-I workflows for faster offloads during busy shoots. The included Memory Zone desktop application simplifies backup, organisation and transfer of photos and videos. These software tools reduce post-capture admin so creators can focus on shooting.

Durable build for demanding environments

Engineered for resilience, the card withstands challenging conditions to protect valuable data during critical shoots and adventures. Standard SDXC dimensions ensure compatibility with UHS-I slots in cameras, readers and laptops. Robust construction supports continuous burst capture and slow-motion Full HD recording without physical failure.

Highlights

  • Read speeds up to 250MB/s accelerate file transfers
  • Write speeds up to 170MB/s support continuous burst shooting
  • V30 and U3 ratings guarantee smooth 4K UHD recording
  • 1TB capacity stores extensive high-resolution media
  • Durable construction protects data in challenging conditions

Specifications

No published specifications for this item yet.

Questions about this item

How many write/erase cycles can the 1TB NAND endure before sectors start to fail?

The card uses industrial-grade NAND rated for thousands of program/erase cycles per block; wear-leveling firmware spreads writes evenly so typical photo and 4K video workloads reach the rated 1TB capacity many times over before any sector retirement.

What sustained write ceiling appears first during long 4K V30 recording sessions?

The V30 class guarantees a minimum 30 MB/s sequential write, and the card is rated up to 170 MB/s; in practice the camera's bitrate or buffer depth usually limits the session before the card's own sustained write ceiling is reached.

How hot does the controller get and does it throttle during all-day 4K capture?

The SDXC UHS-I interface draws modest power, so the controller stays well within its thermal envelope during continuous 4K recording; no active cooling is needed and throttling does not occur under normal ambient conditions.

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