Catalog: Parts: Technic, Connector: 27940: Color Images
Technic, Axle and Pin Connector Hub with 2 Axles
White
by crazylegoman
Dark Bluish Gray
by randyf
Black
by axaday
Blue
by technooki

Part Color Codes:

 Color  Code  By 
 White  6257450  1  randyf 
 Dark Bluish Gray  6167281  1  jennnifer 
 Black  6396457  1  jennnifer 
 Blue  6336378  1  Hygrotus