• Capacity — 4GB• Dimensions — 24mm x 32mm x 2.1mm• Weight — 2.5 g• Operating Temperature — -25ºC to 85 ºC• Storage Temperature — -40ºC to 85ºC• Voltage — 3.3v• Compliant — with the SD Card Association specifications• Secure — built-in write-protect switch prevents accidental data loss• Reliable — lifetime warranty• Simple — as easy as plug-and-play• SDHC Compatible — with SDHC host devices; not compatible with standard SD-enabled devices/readers