SanDisk 256GB Extreme microSDXC UHS-I Memory Card

Product Description:

Enhance your workflow efficiency with rapid card offload speeds of up to 190MB/s, leveraging the power of SanDisk QuickFlow Technology. This innovative technology, engineered with proprietary methods, surpasses UHS-I 104MB/s, ensuring swift data transfer. Note that achieving these speeds requires compatible devices capable of such performance, and actual speeds may vary based on the host device interface, usage conditions, and other factors. SanDisk QuickFlow Technology is exclusively available for capacities of 64GB, 128GB, 256GB, 400GB, 512GB, and 1TB.


For optimal performance, pair the storage card with the SanDisk Professional PRO-READER SD and microSD (sold separately) to attain maximum speeds. The card is compatible with microSDHC, microSDXC, microSDHC UHS-I, and microSDXC UHS-I supporting host devices.

SanDisk 256GB Extreme microSDXC UHS-I Memory Card

Capture moments with agility using write speeds of up to 130MB/s, facilitating fast shooting experiences. However, keep in mind that actual performance may vary based on the host device interface, usage conditions, and other factors.


Designed to meet the demands of high-quality video recording, this card is 4K and 5K UHD-ready, featuring UHS Speed Class 3 (U3) and Video Speed Class 30 (V30). Ensure compatibility with your device, as support for Full HD (1920x1080), 4K UHD (3840 x 2160), and 5K UHD (5120 X 2880) may vary based on the host device and file attributes. UHS Speed Class 3 (U3) supports real-time video recording with UHS-enabled host devices, while Video Speed Class 30 (V30) designates a sustained video capture rate of 30MB/s.


Rated A2 for faster loading and in-app performance, the card boasts A2 performance with 4000 read IOPS and 2000 write IOPS. Results may vary depending on the host device, app type, and other factors, ensuring a seamless and efficient user experience.

SanDisk 256GB Extreme microSDXC UHS-I Memory Card

  • Brand: SanDisk
  • Model Name: SanDisk Extreme microSD UHS-I Card with Adapter
  • Flash Memory Type: Micro SDXC
  • Memory Storage Capacity: 256 GB

Compatible Devices:

  • Action Cameras
  • Digital Cameras
  • Tablets
  • Smartphones
  • Drones
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