Optical Fiber Tester 4in1 professional network cable tester that supports testing for RJ45, RJ11, USB, and BNC cables, delivering comprehensive diagnostics across these cable types. Two remotepoint removable modules enable testing of network and telephone cables at remote ends, improving measurement coverage. RJ45 and RJ11 connectors feature 50u gold plating for reliable connections, with readings displayed on a clear LED screen. Intelligent and efficient testing with a onesecond onoff test, providing quick results for professional workflow. Compact and portable design with a carrying case; lightweight at 0.18 kg, and removable connectors with compact dimensions for easy transport to any job site. Use scenarios Office network installation and maintenance: quickly verify cables before deployment, including patch cords and telephone lines, to ensure reliable connectivity. Field service for telecom and IT: perform endtoend cable testing on site with two remotepoint modules, reducing downtime and rework. Home lab or small workshop setup: conduct rapid diagnostics for network setups and device connections, ensuring compatibility across RJ45, RJ11, USB, and BNC cables.