More info here:

http://www.40percent.club/2018/10/tetris.html

[How to order PCBs from gerber files](http://www.40percent.club/2017/03/ordering-pcb.html)

EasyEDA ordering info:

PCB

![4x4_X](4x4_X.png)

Gerber: 4x4_X.zip

    76.2mm Max* 76.2mm Max;
    Layers: 2;
    PCB Thickness: 1.6mm;
    PCB Qty.: 10;
    PCB Color: Green;
    Surface Finish: HASL;
    Copper Weight: 1;
    Panelized PCBs: 1

Files released under https://creativecommons.org/licenses/by-nc-sa/4.0/

![Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License](https://i.creativecommons.org/l/by-nc-sa/4.0/88x31.png)