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This solderless RJ45 male to 4-pin screw terminal adapter adopts 3456 pin assignment to realize stable signal transmission and line extension. It converts standard RJ45 male interface into accessible screw terminals, enabling fast wire connection without welding. The tight screw fixing ensures reliable circuit connection and prevents loose contact. Mini lightweight structure saves installation space, with safe insulated shell for long-term use. Perfect for security monitoring, industrial equipment, weak current engineering and DIY signal wiring renovation.