SanDisk Extreme PRO 300MB/s SDHC/SDXC UHS-II review

SanDisk is one of the biggest names in memory card manufacturing, but how do its fastest SD cards shape up?

SanDisk Extreme PRO 300MB/s SDHC/SDXC UHS-II
(Image: © Angela Nicholson/Digital Camera World)

Digital Camera World Verdict

The SanDisk Extreme PRO 300MB/s SDXC UHS-II card gives good service for day-to-day photography, but it proves a little sluggish in comparison with some of the competition when transferring images to a computer and it doesn’t enable the best Jpeg burst depths.


  • +

    Capacities starting at 32GB

  • +

    V90 video speed class

  • +

    Impressive speed in software tests


  • -

    In-camera performance doesn’t match some other cards

  • -

    Slow transfer to a computer

  • -


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SanDisk and its parent company, Western Digital, is one of the biggest names in memory cards and digital storage. It also offers an extensive range of SD-type cards and when you’re browsing the Extreme PRO series, it’s important to keep an eye on the speed markings as there are several available including 95MB/s, 100MB/s, 170MB/s, 200MB/s and 300MB/s. Only the 300MB/s cards are UHS-II compliant. 

I’ve tested the 300MB/s version which is available with capacities of 32GB, 64GB and 128GB. The 32GB card is an SDHC device, whereas the 64GB and 128GB cards are SDXC devices.

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Angela Nicholson

Angela has been testing camera gear from all the major manufacturers since January 2004 and has been Amateur Photographer’s Technical Editor and Head of Testing for Future Publishing’s photography portfolio (Digital Camera MagazinePhotoPlus: The Canon MagazineN-PhotoPractical PhotoshopPhotography Week and Professional Photography magazines, as well as the Digital Camera World and TechRadar websites). She is the founder of SheClicks - a community group that encourages and supports female photographers.