Reason for Using: Many senior automotive mostly uses in media oriented systems transport system, and because the system module is the series connection in the maintenance process when a failure occurs from a module of the media oriented systems transport, it may cause the whole system does not work, in this case, you can replace the module in series connection in the loop to determine and confirm working condition. Usage: If you meet the faults of audio CD and navigation systems, audio CDs don't work, navigation is often broken and always blank screen, it may be caused damage to the telephone module. The modules connected on a vehicle media oriented systems transport ring include: CD Changer, Video Display, GPS Navigation, Mobile Phone. If you wish to remove one of these modules from the fiber optic ring for repair or fault diagnosis you will require this connector/adaptor and fiber optic bypass loop cable to close the media oriented systems transport ring and maintain the integrity of the remaining modules on the ring. Male Connector Length: 118mm / 4.65inch(L) Female Connector Length: 131mm / 5.16inch(L) Female Dimension : 131x45x15mm / 5.16x1.77x0.59inch(LxWxH) Male Dimension : 118x43x13mm / 4.65x1.69x0.51inch(LxWxH) Pin Number: 2 Female Connector Size: 35x25mm / 1.38x0.98inch(LxW) Male Connector Size: 27x25mm / 1.06x0.98inch(LxW) Compatibility: Fits most kinds of cars. colour:Black Material:plastic Package Contents: 1 set x optical fiber ring cable bypass connector Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.