StorageReview reviewed the Lexar Professional DIAMOND CFexpress Card
A quote from the article:
The Lexar Professional CFexpress DIAMOND Type B Series is a premium memory card designed for capturing high-resolution video and images in high-end cameras without any lag or stutter. While the GOLD and DIAMOND lines offer high-speed performance and reliability, the DIAMOND line is meant for power users who demand the highest performance and durability possible.Lexar Professional DIAMOND CFexpress Card Review