Meet the Mini SD Card standard
Read speed: 6.2MB/S(MAX)
Write speed: 2.8MB/S(MAX)
Capacity: 128MB--4GB
Dimensions: 20mmX21.5mmX1.4mm
Weight: 1g
Material of case: ABS Plastic
RMS(mA):Read5.0/Write12.2/Standby2.7
Voltage :2.7V-3.6V
Software update: support
Warrantee: 5 years