Features: This RJ45 to RJ11 converter can expand their phone line capabilities. Craft from durability ABS material, this converter is long last and deliver consistent-performances. Suitable for households or small offices with 4phone lines, this converter allows you to easily split 1phone line into four. Whether you need to connect multiple phones in different room or use fax machine and phone simultaneously, this converter have get-you cover. RJ45 to RJ11 Converter Adapter, networking port to telephone port, only used for telephone or networking cable to telephone use; Specifications: Material:ABS Color:White Size:Approx.65x39x28mm/2.56x1.54x1.1in Operating temperature:-10℃-50℃ Model:WDT-RJ45/11 Package Includes: 1xRJ45 to RJ11 Telephone Line Splitter note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.