Don't get a big SD card if your cam makes a new video file every 3 min max. Accident will be recorded in 2 video files max.
By using a large SD you only get too many recorded video files. Unless you need all those files.
I got a 32g genuine Sandisk from B2S for 120b.
Most of online products are not Genuine, when you need a view of an accident and it's not recorded or corrupt file, what happened to me😔.