The Delkin DDSDPRO3-32GB PRO3 SD Card 163X 32GB is designed to be fast and durable for extensive shooting in the most extreme conditions. Optimized for use in professional grade digital compact cameras, SLRs and camcorders. SDHC Pro Class 10 memory cards are capable of transfer speeds up to 24MB/s. SDHC Class 10 Features:Class 10 enabled for advanced transfer speeds up to 24MB/s – 163X*Optimized for digital SLR photography, HD video, high-res. files & data transferExtreme temperature rated: -13F to 158F(-25C to 70C)*X=150 KB/s. 1 Megabyte (MB) = 1024 Kilobytes. 1 Gigabyte (GB) = 1024 Megabytes. SpecificationsSpeed Performance 163X (X=150kB/s)Size: 0.94″ x 1.25″ x 0.08″ (24mm x 32mm x 2.1mm)Weight: 0.09oz. (2.9g)Operating Temperature: -13F to 158F (-25C to 70C)Security: Built-in write-protect switch prevents accidental data lossCompatible: SDHC host devicesFile Format: FAT32Warranty: Lifetime warranty & genuine human assistance Delkin Platinum Pledge We aggressively support our cards for one simple reason, our cards work. When you choose Delkin you’re not only getting a spectacular product, you’re also getting the people that come with it. Discover our passion, pledge, and the lifetime guarantee that’s backed by real people here in the US. Assembled, designed and whenever possible built in America. If you have a problem you can rely on us to fix it. Now you know the difference.