Review on 2020 Latest MazerPi 3.5 inch HD Raspberry Pi Touchscreen with Cooling Fan and ✨ Case for Raspberry Pi 4 Model B/Pi 4b - 480x320 Resolution, 60+fps (Screen with Case) by Austin Hampton

Do you know DT and SPI interfaces? no Check out AdaFruit or SparkFun. They will take care of you there. Short and good. These TFT screens are not well supported by Linux or Rasbian, and it is very difficult to get them to work with two screens, resize interface elements, etc. Overall, the case is ok, although the fan rattles ( no 3.3v option), but I really recommend fully understanding how you are getting the display to work in the first place. The custom build of the driver works much better than the LCDShow scripts, but they don't work very well. (Some recommendations below.) A little more detailed, you just need: tft35a.dtbo/tft35a-overlay.dtb in your /boot/overlay in your config.txtdtoverlay=tft35a,rotate=270,speed=41000000,fps=50enable_uart= 1 AND Correspondingly: 99-calibration.conf (if you are using a touch screen) 99-fbturbo.conf (you need both listed devices for dual display setup) You can run programs on TFT as second display with "DISPLAY:= 0.1 lxterminal ", but windows cannot be dragged into it.