GPIO Female Socket Riser Header - 2x2 4-pin : ID 4855 : $0.50 : Adafruit Industries, Unique & fun DIY electronics and kits
Amazon.com: Nilight 2Pin Way Electrical Wire Connector 10 Pack 16AWG Male Female Plug Socket Quick Disconnect Waterproof Plug Play 1.5mm Series Terminal for Car Truck Motorcycle Marine Boat, 2 Years Warranty : Automotive