SanDisk Extreme Portable Pro + SanDisk Extreme MicroSD. When it comes to storage one name should spring to mind, well it does for me, and that name is SanDisk. They cover us from SD, micro SD and hard drives and that’s what I use myself for my storage needs, and that’s what this review will cover… Two storage devices from the same company SanDisk and the first is my SanDisk Extreme 256 GB microSDXC Memory Card which I have for my GoPro hero Black 9. Fast reliable storage is needed for 4k video recording and so many fake unreliable cards …