How fast is the MiniDrive?

The MiniDrive itself takes a back-seat when it comes to data transfer. The two principle factors affecting speed are:

  • The microSD card you’re using with the MiniDrive. Most modern microSD cards have read/write speeds of up to 90MB/s (and that’s getting faster each year).
  • Your MacBook’s SD card reader. For pre-2012 MacBooks you can expect a maximum read speed of 60MB/s, while later models ramped that up to a blistering 6.4GB/s.
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