64GB 170MB/s SanDisk Extreme Pro MicroSDXC UHS-I Card with Adapter Important Features 64 GB of storage space Maximum Read Speed for UHS-I U3 A2 V30: 170 MB/s Maximum Speed of Writing: 90 MB/s Details Amount One Micro SDXC card with a 64 GB storage capacity Video Speed Class V30 Bus Type UHS-I UHS Speed Class U3 Maximum Read Speed: 170 MB/s Maximum Write Speed: 90 MB/s Sturdiness The box is X-ray proof, shockproof, waterproof, and resistant to extreme temperatures. 64GB 170MB/s SanDisk Extreme Pro MicroSDXC UHS-I Card with Adapter