MICRODIA 8GB XTRA 52x CompactFlash Card (Retail Package) Read/Write Speed: 52X / 7.8 Mbps Made for the latest DSLR, Professional DSLR, Navigation Systems, Onboard Computers, etc., with HIGH DEFINITION Ready Capability Waterproof, dust proof, ESD proof and extreme temperature resistant, Durable, reliable and thoroughly tested temperature tested (heat and cold); shock and vibration tested Speed performance rating: Class 6 Comes with Lifetime Limited Warranty