Believe its class 2...
Includes 5 years warranty
High storage capacity (8GB) for storing essential digital content such as high quality photos, videos, music and more Optimal speed and performance for microSDHC compatible devices
High Quality microSDHC card backed by 5 year limited warranty
Built to last, with an operating shock rating of 2,000Gs, equivalent to a ten-foot drop
Not all devices support microSDHC 8GB cards. Please contact your device manufacturer for details. To ensure compatibility, look for the microSDHC logo on the product or packaging of your new phone or PDA.