Bundle includes (2) 64GB memory cards (Samsung Evo Plus) with adapters and (1) Everything But Stromboli (TM) Memory Card Reader with Micro SD slot Compatible with the GoPro Hero 8 Black, GoPro Max 360 Cameras Fast read speed up to 100MB/s and write speed up to 60MB/s for high quality pictures and video This essential phone accessory is rated Speed Class 10, UHS-I, U3, for high performance and full HD video recording, high resolution pictures, mobile gaming, music and more. Samsung memory cards are water proof, magnet proof, temperature proof, and x-ray proof