SanDisk Extreme 64GB CompactFlash Memory Card (SDCFXSB-064G-G46) Exceptional Shot to Shot Performance - Read speeds of up to 120MB/s and write speeds of up to 85MB/s Professional-Grade Video Capture - VPG-20 ensures sustained data recording rate of 20MB/s for a smooth and unbroken video stream Durable Design - Backed by rigorous stress, shock, and vibration testing and includes RTV silicone coating for protection against shock and vibration