A close up of a network tester on a table

A sharp, close-up shot of a blue Ethernet (RJ45) cable connector, with its intricate gold-plated pins clearly visible, plugged into a network tester. The tester's display and indicator lights are partially visible, suggesting a diagnostic process. Coiled blue cabling and a green, gridded cutting mat provide a technical backdrop. This image is ideal for illustrating network connectivity, IT infrastructure, or troubleshooting.