ProGrade Digital 256GB UHS-II microSDXC Memory Card with SD Adapter 
Product highlights:
- MicroSDXC UHS-II memory for aerial and action cameras
- Tested like a full-size SD card
- Can be used in DSLR and mirrorless devices
- Provides UHS-I DDR-104 and U3 speed ratings
- Transfer speeds up to 250MB/second
ProGrade Digital 256GB UHS-II microSDXC Memory Card with SD Adapter
ProGrade Digital developed microSDXC, UHS-II memory cards for use in popular aerial and action cameras. Cards are tested like a full-size SD card and can be used in DSLR and mirrorless devices. They also provide UHS-I DDR-104 and U3 speed class ratings which ensures maximum compatibility in all applications from single-shot stills to high-resolution 4K videos. This card has a capacity of 256GB and performance levels provide read data transfer speeds up-to 250MB/second - ideal for quickly off-loading lots of content from the card to the workstation.
Ratings and reviews
ProGrade Digital 256GB UHS-II microSDXC Memory Card with SD Adapter 
ProGrade Digital 256GB UHS-II microSDXC Memory Card with SD Adapter
SKU: PGMSD256GBPNA