Product Description: BIGTREETECH TFT35 SPI V2.1 is a medium-sized and clear 3D printer display developed by the 3D printing team of Shenzhen Big Tree Technology Co., Ltd.  Key Features: SPI is used for LCD display, and I2C is used for touch. The touch screen is controlled by the chip on the motherboard, which significantly reduces its cost. FPC port for connecting. It is connected to the motherboard through the FPC cable, simple and convenient. XH2.54 terminal. Designed with XH2.54 terminal, which can communicate with the board through the terminal. Indicator Light: When the motherboard is powered on: the power indicator, D2 red light, lights up, indicating that the power supply is functioning normally.