The Waveshare 4.3inch e-Paper UART Module with extended fittings - raspberry pi rohs is a monochrome electronic display module perfect for a wide array of applications. Compatible with Raspberry Pi, this ultra low power display module utilizes a resolution of 400 x 300 and works with UART for data communication. The unit also features connectors that can be used to connect it to the Pi, as well as additional fittings for power and other I/O, making it easy to set-up and use. The module operates on 3.3V and uses an SPI interface for controlling power configurations and refreshing the display. The display has a wide viewing angle of 170°, which ensures clarity even when viewing it from the sides. Its RoHS compliant construction is environmentally friendly and built to last. Overall, the 4.3inch e-Paper UART Module with extended fittings - raspberry pi rohs offers an easy to use and cost-effective way to display information.