Features: 1) Compliant with the SD card association card specification 2) Speed: up to 10MB/sec (read rate), 10MB/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) Voltage: 3.3V 6) Reliable, lifetime warranty 7) Simple, plug-and-play 8) Economical, low power consumption, easy on device's batteries