Features: 1) Compliant with the SD card association card specification 2) Speed: Up to 5MB/sec (read rate), 1.5MB/sec (write rate) 3) Small size, as a postage stamp (24 x 32 x 2. 1mm) 4) Secure, with built-in write protect switch prevents accidental data loss 5) Operating temperature: 0- 60C / 32 - 140F 6) Storage temperature: -20 - 85C / -4 - 185F 7) Voltage: 3.3V 8) Reliable, 1 years warranty 9) Simple, plug-and-play 10) Economical, low power consumption, easy on device's batteries