SD card requirements for Pine Phone (Brave Heart edition)

[bcnaz]

 
   I cannot find the requirements for the Pine phone SD card, except it is 'microSD'

     and it supports SDHC and SDXC

     No mention of supported speed  ?

    IF we are testing the Brave Heart from the SD card,  I would like to use the fastest that it supports, 
       but not too excessively faster...

     I looked in the wiki,  that is where I found the above information.

             Did I miss it somewhere  ? 

        Thanks for any info,   BC

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