1、7.3 Inch: This 7.3 inch electronic ink display, perfect for shelf label, industrial instrument and so on. 2、Display Without Electricity: This E paper screen display clearly display images without electricity, which can keep displaying last content for a long time even when power down. 3、Low Power Consumption: This 7.3 inch E paper screen display features super low power consumption, basically power is only required for refreshing. 4、170 Degrees: This electronic ink screen provides at least 170 degrees viewing angle, clearly display a picture in lights and natural light. 5、SPI Interface: This 7.3 inch electronic ink display adopts 3 wire SPI and 4 wire SPI interface. 1 x Electronic Ink Display1 x Soft Flat Cable1 x Connecting Wire1 x Screw Kit Item Type: Electronic Ink DisplayMaterial: Electronic Ink. Printed Circuit BoardDisplay Size: Approx. 160x96mm / 6.30 x 3.78inOperating Voltage: 3.3VCommunication Interface: 3 Wire SPI, 4 Wire SPIDot Pitch: 0.2x 0.2mmResolution: 800x480Display Colors: Red, Yellow, Black, WhiteGray Level: 2Refresh: 16sRefresh Power Consumption: < 85mW(typ.)Viewing Angle: >170 DegreesVCC: 3.5V/5VGND: GND DIN: SPI Communication MOSI PinSCLK: SPI Communication SCK PinCS: SPI Chip Select Pin (Active Low Level)DC: Data Command Control Pin (High Level Indicates Data, Low Level Indicates Command)RST: External Reset Pin (Low Level Reset)BUSY: Busy Status Output Pin