3-Pin Wire Joints (3 Pack) : ID 5098 : $1.50 : Adafruit Industries, Unique & fun DIY electronics and kits
Dupont 3-Pin Connector Cable 13cm - 5-inch
Grove 4 Pin Connector to Male Jumper Wire Cable 20cm (5 pack)
Wire Connectors - Pack of 12 Low Voltage I tap 1 pin connectors solderless with no Wire-Stripping Required for Mid-Span Branching in Wires Connection 24-20 AWG Cable by Brightfour - - Amazon.com
6 Terminal Wiring Harness Electrical Connector for Vintage Honda Motorcycles| Common Motor Collective
Crimp Ferrules, Pin Terminals, & Wire Tabs | TE Connectivity
Male Pin Connector for Dupont Jumper Wire
4 Terminal Electrical Wiring Harness Electrical Connector for Vintage Honda Motorcycles| Common Motor Collective
Crimp on Pin Connector for 14-16 awg wires
1 Kit 3 Pin Way Electrical Wire Connector Plug Set auto connectors with cable/total length 21CM | AliExpress
RS PRO Insulated, Tin Crimp Pin Connector, 4mm² to 6mm², 12AWG to 10AWG, 2.8mm Pin Diameter, 10mm Pin Length, Yellow | RS