Sandisk Extreme Pro 64GB 200MBPS Extreme PRO UHS-I SDXC Memory Card Full-HD, 4K, and burst-mode photography

Capacity: 64 GB

Type / Form Factor: SDXC (Secure Digital eXtended Capacity)

Speed Class: UHS-I / U3 / V30 / Class 10

Max Read Speed: ~ 170-200 MB/s (varies by variant/model)

Max Write Speed: up to ~ 90 MB/s (burst / peak)

Minimum Write Speed (for video/sustained needs): at least 30 MB/s (because of V30 rating)

Operating Temperature Range: approximately -25 °C to 85 °C

Non-Operating / Storage Temperature: down to around -40 °C up to about 85 °C

Built-in Write-Protect Switch: Yes