The SanDisk Extreme IV is the fastest card available at the present time. Apprx. 20% faster than the previous Extreme III version. The card can withstand moisture, dust and shocks, making it the most reliable card for the semi-professional and professional digital photographers who require the highest possible performance and the largest capacities for their medium format and high-end digital SLR(Single Lens Reflex) cameras. SanDisk Extreme 4 has extremely fast read/write speeds of up to 40MB/sec.

Specifications:

• 2GB, 4GB and 8GB capacities
• Extreme performance: Read and write performance of 40MB/sec with ESP Technology
• Extreme reliability:
  - Extended temperature testing (-25 to 85 C)
  - Shock-vibration tested (RTV silicon)
  - Water resistance
  - Included RescuePRO Deluxe™ data recovery software and premium travel case
  - Lifetime limited warranty

The RescuePRO is a strong data recovery software which can recover most photos even after several full card formats. It is a very useful yet “dangerous” tool.