mk64 USB +fatfs + sd ,speed of copying data

[OneByte]

What is the fastest copy speed of 700Kb?How to optimize

[RaRo]

Hello @OneByte,

Could you give us more details about what you are doing? Are you using an NXP's EVK or is a custom board? Also, could you please tell us which IDE and version are you using?

Also, it might be useful to look at the following information: FatFs Module Application Note.

Best regards, Raul.