SanDisk 8 GB Extreme IV CompactFlash Card ( SDCFX4-8192-901, US Retail Package ) Large 8 GB Capacity Read and write performance of 40MB/sec with ESP Technology Built to perform in the most extreme environments and temperatures&#8212;from -13 F to 185 F Durable, reliable and thoroughly tested temperature tested,shock and vibration tested (industrial-grade RTV included for CompactFlash) Priority toll-free technical support