1. Metal V-groove design ensures high fiber optic connection accuracy and excellent technical performance. 2. Core structure features a box design with good sealing performance, minimal loss of internal liquid, and strong weather resistance. 3. Compatible with 0.25mm and 0.9mm optical fibers, suitable for various fiber combinations. 4. Simple operation, fast installation, high success rate, long service life, and easy maintenance. 5. Designed for FTTH applications and optical cable repair. Unit Parameters: Insertion Loss: < 0.20 dB Return Loss: 40 dB Tensile Strength: 10 N for 2 minutes Working Temperature: -40°C to +85°C Repeated Assembly: More than 10 times Applicable Optical Cable: 0.25mm and 0.9mm fiber Dimensions: 45.3 x 4.6 x 4 mm Material: Plastic Color: Black Package Contents: 5 x Optical Fiber Connectors Note: The package includes only the items listed above. Other products are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement allows an error of +/- 1-3 cm.