Details

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SanDisk PRO-CINEMA CFexpress Type B card is a high-performance, durable memory solution designed for professional photographers and filmmakers, enabling flawless 8K video capture and high-resolution burst photography. It is available in 320GB and 640GB capacities. 
 

Attribute	Specification
Form Factor	CFexpress Type B
Interface	CFexpress
Maximum Read Speed	Up to 1700 MB/s
Maximum Write Speed	Up to 1500 MB/s
Minimum Sustained Write Speed	1400 MB/s (for the latest PRO-CINEMA line)
Video Performance Guarantee	V90 (Video Class 90) for some models; VPG400 for older PRO-CINEMA VPG400 Type B models
Durability	Shockproof and resistant to up to 1-meter drops and 50 newtons of pressure
Dimensions	2.24 mm x 36.32 mm x 42.79 mm
Warranty	Lifetime Limited Warranty