Pin on 4

P101-L Voltage boost harness for GM 4 pin regulators for a 1 volt increase for Lithium batteries - Mechman Alternators

If you're messing around with floppy drives, or disk drives, or other devices that are usually powered with a PC motherboard you'll often see these

IDE Molex 4-pin Plug Cable - 30cm long

How to: Connect a PSU to a 4-pin CPU port – Corsair

Can the Celsius+ units be plugged into a 4-pin 12V RGB header? : Fractal Design Support

Convert Imported PS4 Console PSU with 4 Pins to 5 Pins Guide

PC power supply cables and connectors

Pin-Up Millie #4 - Enamel Pin *PRE-ORDER* – Shark Robot

The Cables in Your PC's Power Supply, Explained

Is it normal for a 4 pin fan splitter to have 1 4 pin input and x 3 pin inputs? Does that still work with PWM? - Quora

Power Supply Connectors Guide - Types of PC Power Connectors

Relay Wiring Diagram 4-Pin & 5-Pin Automotive Relay - ElectronicsHub

ultra-thin 4-pin micro pogo pin connector, side-entry connector - Top-Link