Features: This RJ45 to RJ11 converter can expand your telephone line capacity. Made from durable ABS material, this converter is long-lasting and delivers consistent performance. Suitable for homes or small offices with 4 telephone lines, this converter lets you easily split one telephone line into four. Whether you need to connect multiple phones in different rooms or use a fax and phone simultaneously, this converter has you covered. RJ45 to RJ11 converter adapter, network port to telephone port, only used for telephone or network cable to telephone use; Specifications: Material: ABS Color: White Size: Approx 65x39x28mm/2.56x1.54x1.1in Operating temperature: -10-50 Model: WDT-RJ45/11 Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x RJ45 to RJ11 Telephone Line Splitter