New and high quality with stable characteristics and high reliability. 1. The MOST diagnostic kit helps quickly locate fault points, whether related to the motherboard transceiver or cable connection issues. 2. The optical fiber loop allows removal or addition of a single vehicle device without affecting the car's fiber-optic network. 3. It can diagnose and identify fault points at any node in the MOST (Media Oriented Systems Transport) network. 4. When the Bluetooth phone module is damaged, causing intermittent sound or no sound when opening the stereo, the fiber from the phone module can be disconnected and connected to the fiber loop to deactivate the Bluetooth phone function, restoring normal operation immediately. Fitment for various compatible models. Attenuation: less than 180 dB/km Working temperature: -55°C to +85°C Color: Black Material: Plastic Size: 11.5 cm x 2.5 cm x 1.2 cm (L x W x H) Core diameter: 1.0 mm Finished product diameter: 2.3 mm Package Contents: 1 x Male Connector, 1 x Female Connector Only the above package content; other products are not included. Note: Light and display differences may cause slight color variations between the image and the actual item. Measurement error allowed is +/- 1-3 cm.