How to Build Your Own XLR Cables: A Step by Step Guide - Studio DIY — The Home Studio Archive
Medium Series 2 Pin Male + Female Inline Waterproof Cable - 18AWG - 6
Why does micro USB 2.0 have 5 pins, when the A-type only has 4? - Electrical Engineering Stack Exchange
This is a standard PCB-mountable barrel-type jack for DC power adapters with 2.1 mm center holes.
DC Power Adapter Barrel Jack
Polarized Vs. Non-polarized: Household Electrical Safety – AC Connectors
What pin configuration do Noctua fans use? : Noctua Knowledge Centre
Dupont 2-Pin Connector Cable 20cm - 7.8-inch
Echo 90030020022 Split Pin
Pinouts, Low-Voltage Cable Wiring Schemes