factory price SD card 1. memory card by Our Own Factory in Shenzhen. 2. First Class Quality & Competitive price. 3. OEM factory price SD cardVoltage Range2.7 to 3.6VEnvironmental Specifications Temperature Standard Operating -25°C to 85°C Non-Operating -40°C to 85°C Humidity Operating 8% to 95%, non-condensing Non-Operating 8% to 95%, non-condensing Acoustic Noise (at 1 meter) 0dB Vibration: ...