The SanDisk Extreme Pro MicrosdxC memory card uses the SanDisk QuickFlow technology9 for a reading speed of up to 200 MB/s so that you can transmit your media files even faster. In combination with the Sandisk® Professional Pro reader for SD and microSD cards, you can reach the maximum speed (available separately). Thanks to a writing speed of up to 90 MB/s, it is ideal for Android smartphones, action cams or drones. 4K UHD videos, full HD videos and high-resolution photos can be recorded on the powerful microSD.