The SanDisk Extreme PRO microSDXC memory card utilizes SanDisk QuickFlow technology for read speeds of up to 200 MB/s, allowing you to transfer your media files even faster. When combined with the SanDisk Professional PRO-READER for SD and microSD cards (sold separately), you can achieve maximum speeds. With a write speed of up to 140 MB/s, it is ideal for Android smartphones, action cameras, or drones. This powerful microSD card can record 4K UHD videos, Full HD videos, and high-resolution photos.