Overview: This is a 1.3-inch OLED expansion board for raspberry pi, with a 128x64 resolution and an internal controller that can communicate using SPI or I2C interfaces. Do you need a mini screen for your raspberry pi? Come on, Baby! Specifications: Material: PCB Drive Chip: SH1106 Support Interface: 4-wire SPI, 3-wire SPI, I2C Display Color: Blue Resolution: 128x64 Operating Voltage: 3.3V Size: Approx. 6.5 * 3 cm / 2.6 * 1.2 in Package list: 1 x 1.3 inch OLED Expansion Board 1 x RPi Copper Column Package (2PCS/set)