Comparison of SanDisk SDXC UHS Memory Cards: Performance and Use Cases

Feature/Specification 

SanDisk Class 4 SDXC 

SanDisk Extreme PRO SDXC UHS-I 

SanDisk Extreme PRO SDXC UHS-II 

SanDisk Extreme SDXC UHS-I 

SanDisk Ultra SDXC UHS-I 

Speed Class 

Class 4 

Class 10 

Class 10 

Class 10 

Class 10 

UHS Speed Class 

- 

U3 

U3 

U3 

U1 

Video Speed Class 

- 

- 

V90 

V30 

V10 

Read Speed 

Up to 30 MB/s 

Up to 170 MB/s 

Up to 300 MB/s 

Up to 150 MB/s 

Up to 140 MB/s 

Write Speed 

Up to 15 MB/s 

Up to 90 MB/s 

Up to 250 MB/s 

Up to 60 MB/s 

Up to 10 MB/s 

Resolution Support 

Standard Definition 

4K UHD and Full HD 

8K UHD, 4K UHD, Full HD 

4K UHD and Full HD 

Full HD 

Ideal Use Cases 

Basic digital photography, file storage 

Professional 4K UHD video, high-speed photography 

Professional 8K/4K UHD video, high-speed photography 

4K UHD video, high-speed photography 

Full HD video, standard photography 

Suitable Devices 

Older cameras, basic devices 

Professional cameras, action cameras, drones 

High-end cameras, professional video equipment 

Professional cameras, action cameras, drones 

Standard cameras, action cameras, basic devices