Chroma on Twitter: "Some cheapo Chinese mouse. Single layer PCB - the only trace jump they needed to make is that exposed wire beneath the CPI button. https://t.co/5WagXQp9a3" / Twitter
Working with Jumper Components in Altium Designer | Altium Designer 19.1 User Manual | Documentation
What is the purpose of the PCB jumpers in the attached image - Electrical Engineering Stack Exchange
Will copper pour help on my single-layer PCB? - Electrical Engineering Stack Exchange
Guide to PCB Grounding Techniques | What To Remember
Introduction to Single Layer PCB - The Engineering Projects
Solved: Jumpers on Board - Autodesk Community - EAGLE
PCB Basics - SparkFun Learn
Types of PCB | Different Types of Printed Circuit Board (PCB)