The SanDisk Extreme CompactFlash memory card is equipped with SanDisk's exclusive Power Core Controller which distributes image data across the card more efficiently. This card achieves accelerated data speeds, improving your DSLR camera's shot-to-shot performance. With write speeds of up to 60MB/s, the SanDisk Extreme CompactFlash Memory Card enhances your camera's performance during burst-mode shooting. The card records photos almost instantly, ensuring you will catch your best shot. SanDisk Extreme CompactFlash Memory Cards are designed to handle whatever life throws at you. This card is backed by rigorous stress, shock, and vibration testing procedures and includes RTV silicone coating for added protection against shock and vibration. It also operates in nearly any climate, with a functioning temperature range of -13 to 185° F.