The SanDisk Extreme 1TB is the world’s fastest UHS-I microSDXC memory card

SanDisk’s new microSDXC card is for users of 360 cameras, drones and action cameras who need to capture and store large quantities of still images and video footage in the field and then transfer it at high speed back at base.

The new SanDisk Extreme microSDXC 1TB is a UHS-I memory card offering read speeds up to 160MBs. That’s not as fast as the best memory cards on the market, which will still be a top choice for capturing high-quality 4K video and high frame/bit rates, but the new cards still meet the V30 standard for regular 4K capture, and their cost will make them very appealing for those who don’t need UHS-II speeds but do need massive memory card capacities. It also trumps the maximum 95MB/s read speed of the monster Lexar Professional 633x SDXC UHS-I card that went on sale earlier this year.

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Rod Lawton

Rod is an independent photography journalist and editor, and a long-standing Digital Camera World contributor, having previously worked as DCW's Group Reviews editor. Before that he has been technique editor on N-Photo, Head of Testing for the photography division and Camera Channel editor on TechRadar, as well as contributing to many other publications. He has been writing about photography technique, photo editing and digital cameras since they first appeared, and before that began his career writing about film photography. He has used and reviewed practically every interchangeable lens camera launched in the past 20 years, from entry-level DSLRs to medium format cameras, together with lenses, tripods, gimbals, light meters, camera bags and more. Rod has his own camera gear blog at but also writes about photo-editing applications and techniques at