Onboard high-precision chip for accurate time control Optimized PCB layout with additional mounting holes for fixing screws Adopts Immersion Gold process, and anti-, enhances soldering performance and improves electrical properties, with better durability and reliability to meet various applications Adopts HATand standard to improve interoperability, helping the users to design and develop faster, easy to use with other peripherals and extend more functions for No backlight, keeps displaying last content for a long time even when power down (Due to batch issues, the product appearance , which does not affect the use) Colour:As Shown Material:Pcd Package Contents: 1x13inch e-Paper HAT 1x Hexagonal copper column packet 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.