NOS Disk Extreme 64 GB 35 MB/s 600x (Life Time Warranty) Ultimate Compact Flash Card CF 64 GB Standardized complies with CompactFlash Association specification standards Extreme Speed up-to 300x 60 MB/s (Life Time Warranty) Simple as easy as plug and play Small one-third the size of a full-size PC card Economical autosleep mode preserves system battery life