Description: OOTDTY . Feature: RJ11 to 4 pin with thread clamp block converter main adapter for modem. The RJ11 adapter for screw terminals is connected according to the EIA/TIA 568B cabling standard for structured cabling. Fixed RJ11 male interface effectively shield out electromagnetic signal interference, strong signal stability and reliability. Use with hubs that have RJ11 interfaces, the compact design ensures a reliable connection. Solid, exquisite plastic shell, wear, tear, scratches, high and low temperature, impact-resistant, interlocking design, strong and reliable. Compact design and reliable connection. RJ11 for screw adapter only, other accessories shown in the picture are not included! Specifications:Item Type: RJ11 to Screw Terminal Adapter Material: Plastic + Metal Size: 50x18x1 1mm/1.9x0.7x0.4in Color: Black Quantity: 1 PcNote: No retail package. Transition: 1cm=10mm=0.39 inch Please allow 1-3mm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Included:1 x RJ11 for Screw Terminal Adapter