Strontium 32GB Micro SD SDHC Flash Memory TF Card Range of Class 10 With SD Adaptor Supports SD SPI mode, Complies with highest security of SDMI standard Card Capacity of Non-secure Area, Secure Area Supports Specifications Class speed  10, High-Speed mode : Variable clock rate 0-50MHz, up to 10MB/sec interface speed Operating Temperature: -13F to 185F (-25C to 85C ), Storage Temperature: -40F to 185F (-40C to 85C) Convertible to full SD card size with an adapter, Lifetime Strontium Limited Warranty