Need to connect a 3.5mm audio device to an RJ45 Ethernet port? This little white adapter cable does just that. One end is a 3.5mm male TRRS plug (the kind with four sections for audio and sometimes mic), and the other end is an RJ45 female Ethernet socket. The cable itself is about 14cm long, making it portable and handy. It's a Cat 5e category cable, and it's a 1:1 connection – meaning it passes the signals straight through. Compatible with universal brands. It doesn't output voltage; it's just a passive adapter. Brand new, unbranded/generic, but functional. Great for certain professional audio setups, intercom systems, or specific equipment that uses Ethernet jacks for audio connections. A niche but useful tool for the right application.