4-pin Male Weatherpack Connector, Square | Performance Electronics
10pcs 5557 6 Position 6 Pin Male Plug Housing 4.20 Mm Pitch Power Connector Plastic Shell 3 Square 3 Tapered Cross Molex - Connectors - AliExpress
LH0799 GX10Q-1,2,3,4 4 pin square CFL lamp holder/socket with two hole mounting
Amazon.com: 1 x Set Female & Male Connector Plug 4-way 4 pin square WeatherPack Electrical : Automotive
10cm 5.5*2.1 Mm Female To Small Usb Square No Pin Connector For Lenovo Thinkpad 10 Laptop 12v 3a 36w Power Adapter Cable - Pc Hardware Cables & Adapters - AliExpress
Connectors - Multi Pin | All Electronics Corp.
5 Amp Round Pin to Square Pin 13 Amp UK Adaptor Plug Socket | eBay