Onboard high-precision RTC chip for accurate time control. Optimized PCB layout with additional mounting holes for fixing screws. Adopts Immersion Gold process, anti-oxidation and anti-corrosion, enhances soldering performance and improves electrical properties, with better durability and reliability to meet various applications. Adopts for Raspberry Pi HAT+ standard to improve interoperability, helping the users to design and develop faster, easy to use with other peripherals and extend more functions for Raspberry Pi. No backlight, keeps displaying last content for a long time even when power down. OPERATING VOLTAGE:3.3V GREY SCALE:2 INTERFACE:3-wire SPI, 4-wire SPI FULL REFRESH TIME:2s OUTLINE DIMENSIONS:65 x 30.5mm PARTIAL REFRESH TIME:0.3s DISPLAY SIZE:48.55 x 23.70mm FAST REFRESH TIME:1.8s DOT PITCH:0.194 x 0.194mm REFRESH POWER:10.5mW (typ.) RESOLUTION:250 x 122 pixels STANDBY POWER:Less than 0.01mW(typ.) DISPLAY COLOR:black, white VIEWING ANGLE:Greater than 170° Note:due to different production batches, the appearance printing is different, which does not affect the use. Colour:As Shown Material:Plastic Package Contents: 1 * Module 8 * Nail Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.