SDHC and SDXC SanDisk SD Extreme Pro memory cards deliver fast speed for great reliability and performance with clear image and 4k UHD video recording, read speeds of up to 170MB/s speed and write speeds of up to 90MB/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. Compatible with Sony Alpha a6600 and Sony Alpha a6100 Mirrorless/Digital camera. Bundle includes (1) 128 GB SanDisk SD Extreme Pro memory card and (1) Everything But Stromboli (TM) 3.0 SD and Micro (TF) Card Reader.