Here is a Raspberry Pi 4B mini computer with an OLED display and green under case lighting. The Black TurboPi has an acrylic case, an ICE Cube Cooler and a Noctua Case fan. It also has a 128GB SD card with Raspbian OS installed. The TurboPi case has a 128 x 128 OLED display. It gives you side access to USB-C, HDMI, and audio ports.