OLED Display: Advanced Control and Monitoring for ONE V5 Case. This product is designed for the ONE V5 case. By integrating an OLED display, the upgradeability of the ONE V5 case is maximized, providing real-time system information at a glance. Monitor system performance in real time through a clear OLED display, which shows basic information such as CPU temperature, system uptime, and IP address, giving you full control over the system status. Specification Size: 1.8 inch Display Color: White Dot Matrix: 128x64 Connectivity: GPIO Color: Black Material: Plastic Note: The printed screen may vary slightly between batches, but this does not affect functionality. Package Contents: 1 x OLED Module 1 x Connecting Wire 1 x Adapter Board Note: Light reflection and differences in display settings may cause the item's color in the image to differ slightly from the actual product. Measurement error allowance is +/- 1-3 cm.