SDHC and SDXC SanDisk SD Extreme Pro memory cards deliver fast speed for great reliability and performance with clear image and 4K 8K video recording, read speeds of up to 300 MB/s speed and write speeds of up to 260MB/s so moving your data is fast and efficient for all your post-production needs. Great for professionals or hobbyists looking to improve. Water proof, temperature proof, shock proof, X-ray proof. Works with Canon Digital or Mirrorless Cameras such as EOS R50,and EOS R8. Also Compatible EOS R5 C, EOS R3, EOS M50 Mark II, EOS Ra, Canon R6, Canon R5, EOS M6 Mark II, EOS 90D, EOS R, and EOS RP. Bundle includes (1)128 GB SD Extreme Pro UHS-II SanDisk memory card and (1) Everything But Stromboli 3.0 Micro & SD Card Reader