SanDisk 2 GB Extreme IV CompactFlash Card ( SDCFX4-2048-901 ) Large 2 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&#8212;temperature tested (heat and cold); shock and vibration tested (industrial-grade RTV included for CompactFlash) Priority toll-free technical support