The sandisk extreme micro sdxctm memory card lets you save time transferring media with read speeds of up to 190mb/spowered by sandisk quick flowtm technology(64gb - 1tb). pair with the sandisk professional pro-reader sd and microsdtm to achieve maximum speeds (sold separately). with write speeds up to 130mb/sit’s ideal for your androidtm smartphone, action cameras, or drones. this high-performance microsdtm card handles 4k uhd video recording, full hd videoand high-resolution photos. plus, it’s a2-rated, so you can get fast application performance for an exceptional smartphone experience.