2 pin blue Connector Terminal Block with 0.2 inch pitch. Every single block contains a keying notch. More than one of these blocks can be attached together by keying notch, making it a multiple of 2 pin (4,6,8 etc.) block.
Specifications
Pin to pin distance: 0.2 inch
Housing dimensions: 0.4 inch (Length) x 0.3 inch (weidth) x 0.4 inch (height)
Color: Blue