... V 3. Higher Transfer Rate,: 10MB / sec 4. Support SD & SPI Mode product Name : Hot Selling -TF memory card 4GB with ... card. • Operation Voltage : 2.7 ~ 3.6 V • Support SD & SPI Mode • Higher Transfer Rate,: 10MB / sec • Low Battery Consumption to ... card. • Operation Voltage : 2.7 ~ 3.6 V • Support SD & SPI Mode • Higher Transfer Rate,: 10MB / sec • Low Battery Consumption to ...