title_body: DJI FPV Air Unit mistakenly declares "slow card" Getting a slow sd card in my DJI goggles screen indicating the message for the air unit. 
  
  Using a 64gb SanDisk Extreme Pro Card.
upvoted_answer: It appears that this issue where perfectly good and speedy SD cards are declared "slow" in DJI Air Units, as is documented on the DJI product forums. This is an issue for many DJI FPV system users.