The MMC Mobile Card was unveiled by Siemens and Sandisk in 1997. The postage stamp size card is typically used in mobile phones. The reduced size cards has meant that it has been very popular for mobile phone manufacturers. Compatible in all memory card slots for: MMCMobile, RS-MMC Low Voltage, RS-MMC 3 Volt and MultiMedia Card (MMC). Please use our Memory Selector or check your manual to ensure compatibily.