Amazon.com: network cable tester,rj45 tester ethernet tester poe tester cat8 cat7 cat6 continuity tester cable tester network tester ethernet cable teste [QC Single side test RJ45 connector]Include battery : Industrial & Scientific
Amazon.com: Cable Matters Plug & Play USB to Ethernet Adapter with PXE, MAC Address Clone Support (Ethernet to USB 2.0 Adapter, Ethernet Adapter for Laptop) Supporting 10/100 Mbps Ethernet Network in Black :