A2 Designation Aids Performance of Raspberry Pi Model 3B
The process is a bit obscure, but it is possible to use this 64GB microSDXC card with the Raspbian OS and have 50GB of file space available.
This card also makes a big difference in performance, perhaps because of its A2 designation. The details are unknown to me, but I understand that features such as command queuing are helpful in running a heavily randomized load (such as an OS) rather than a sequential load (such as video recording). In any case, this card exceeds Raspbian's required benchmark performance by 20% to 50%; the no-name card I had been using ran about 30% too slow.
If only I could find a card with both the A2 and "Endurance" designations. Thus would my joy be complete. In lieu of this, i opted for 64GB in hope of spreading access across twice as many cells as my old 32GB card had.
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