Sd memory card 32mmx24mmx2.1mm; Weight¦2g; High qualityíevery bit test * high compatibilityíthousands digital devices tested. * long term reliability. * write/delete protection; * multi-operating system support. * high transfer speed for fast read/write process * non-volatile solid-state; no moving parts * data is not lost when power is turned off * low power consumption to maximize battery life * write protect switch on the exterior of the card * compatible with sd compliant devices * warranty 10 years Certificated¦rohs/fcc/ce 32mmx24mmx2.1mm; Weight¦2g