Take 4K UHD videos and Sequential Burst mode photography with the SanDisk Extreme 128GB SDXC UHS-I Memory Card in Black. Save time transferring media with read speeds of up to 180MBPS powered by SanDisk QuickFlow Technology. Pair with the SanDisk Professional Pro-Reader SD and microSD to achieve maximum speeds (sold separately). With write speeds of up to 90MBPS, UHS Speed Class 3 (U3) recording, and Video Speed Class 30 (V30), you're ready to capture high-resolution, stutter-free 4K UHD video. Plus, it's built to withstand weather, water, shocks, and other less-than-ideal conditions so you can rest assured that it's good to go wherever you go. Improve Your Workflow Efficiency with SanDisk QuickFlow Technology This card optimizes performance for timesaving media offloads with quick transfer speeds up to 180MBPS. Pair with the SanDisk Professional Pro-Reader SD and microSD to achieve maximum speeds (sold separately). Write Speeds up to 90MBPS With write speeds up to 90MBPS, the card is perfect for capturing the action as it happens, without missing a beat. Perfect for 4K UHD Video Sometimes speed is what you need. The SanDisk Extreme SDXC UHS-I card delivers the performance to capture stunning, uninterrupted 4K UHD video. Durability You Can Count On Built and tested for harsh conditions, the SanDisk Extreme SDXC UHS-I card is temperature-proof, waterproof, shock-proof, and x-ray-proof.