Specifications: Capacity: 16GB/32GB/64GB. Compliant with the SD Specification Version 2.00 Versatile when combined with the adapter， can be used as a full-size SD card Compatible with microSD host devices File Format FAT 32 Reliable 1year warrant Dimensions 0.94" x 1.25" x 0.08" (24mm x 32mm x 2.1mm) Operating Temperature -13o F to 185o F (-25o C to 85 o C) Storage Temperature -40o F to 185o F (-40o C to 85o C) Voltage 3.3v Weight 0.05 oz (1.4g)