To prevent some large size or heavy laptop computers from shaking or slipping when using our products. The large area of the support board can provide a more stable experience for the laptop. And thicker and wider support rods can also enhance the experience. At the same time, to better match the expansion dock equipment, we specially customized the dock's appearance, which can be more suitable for using the bracket. In addition, to prevent customers from falling off the pier during installation and use, we have specially designed magnetic properties at the bottom of the dock. This design can make the customer's user experience better.