Du pont Wires: Quantity: 40pcs, Length: 20cm/7.87 inch, 2.54mm 1p-1p pin head. Compatible with 0.1 mil spacing pin headers. Compatible with 2.54mm spacing pin header. Can be used for PCB project, pc motherboard. Low power consumption: 0.04W during normal operation, Support wide voltage: 3.3V-5V DC, Working temperature: -30-80 degrees, Volume: 27MM * 27MM * 4.1MM, Driver IC: SSD1306, Communication: IIC, only two I / O ports, No font: The software takes word modulo, Backlight: OLED self light, no backlight. Size: 0.96 inch, Resolution: 128*64, Color: Blue, Viewing angle: greater than 160 degrees, Supported platforms: for arduino, 51 series, MSP430 series, STIM32 / 2, SCR chips. I2C IIC Serial Oled LCD LED Blue Display Module, Interface: VCC: 3.3-5V, GND: Ground, SCL: Serial Clock, SDA: Serial Data. Note: This I2c OLED Display come with unsoldered, requires soldering.