Serial Number Link - Check Lexar

: Significant failure to meet advertised speeds or capacity.

High-end Lexar Professional cards (like the CFexpress Type B) occasionally receive firmware updates. You cannot download the correct firmware without first verifying your serial number to ensure compatibility. check lexar serial number link

Lexar’s support infrastructure changed after the brand was acquired by Longsys (moving away from Micron). If the main "check Lexar serial number link" is broken, use these direct human contacts: : Significant failure to meet advertised speeds or capacity