UHS-I / V30 / U3 / Class 10 Max Read Speed: 170 MB/s Max Write Speed: 90 MB/s Min Write Speed: 30 MB/s Records Full HD, 3D, and 4K Video Built-In Write-Protect Switch GEAR THAT DOESN'T LIMIT YOUR CREATIVITY Our most powerful SD UHS-I memory card yet delivers performance that elevates your creativity. With shot speeds of up to 90MB/s and UHS Speed Class 3 (U3) recording, you're ready to capture stunning high-resolution, stutter-free 4K UHD video. And, because your pace doesn't let up after the shots are in, it delivers up to 170MB/s transfer speeds for a faster post production workflow. 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 your work takes you. TRANSFER SPEEDS UP TO 170MB/SInce the shots are taken, your work is only half-done. Accelerating your workflow means you can carve out more time to take your creativity to the next level.