<h1 class="a-size-base-plus a-text-bold">About this item</h1> <ul class="a-unordered-list a-vertical a-spacing-mini"> <li class="a-spacing-mini"><span class="a-list-item">High Speed 18Gbps: 50ft HDMI Fiber Optic Cable is made of high quality glass fiber for pure signal transmission. Can ensure the full 18Gbps signal transmission without signal loss. * Noted: Do not add any switch or other extender device to work with the cable at the same time. Multi-transfer will result in HDMI signal loss.</span></li> </ul>