这是一个利用m.2接口转接pcie 1X的扩展坞方案，集成了一个5V继电器模块，可实现自动启停，也可通过开关开进行启动。

需要使用FLEX电源模块，m.2转接pcie 1x的配套模块一套，如果需要使用自动启停功能还需要5V继电器模块和typec接口一个，如果不需要使用自动启停功能可以不接。还需要使用一个12mm的圆形自锁开关，以及10颗m3*5*5的注塑螺母，m3*7的沉头螺丝17颗，机箱铜柱2粒。相关的组装视频开源查看下面视频。

This is a solution for using the m.2 interface to connect to PCIe 1X through an expansion dock. It integrates a 5V relay module, which enables automatic power on/off and can also be manually controlled using a switch.

To implement this solution, you will need the following components: a FLEX power module, a set of m.2 to PCIe 1X adapter modules, a 5V relay module, and a Type-C interface (if automatic power on/off functionality is required). If automatic power on/off is not needed, the relay module can be omitted. Additionally, you will need a 12mm circular self-locking switch, 10 M355 injection-molded nuts, 17 M3*7 countersunk screws, and 2 motherboard standoffs.

For detailed assembly instructions, you can refer to an open-source instructional video that demonstrates the process.