Qualtek HDMI 2.1 Active Optical Cables are constructed from copper and optical fiber with cable lengths up to 30m. These AOCs provide a built-in optical engine, which is ideal for maintaining 8K Ultra HD resolution and ensuring a full 48Gpbs bandwidth with zero signal loss over long distances. The HDMI 2.1 cables are more flexible (20mm bending radius) and easier to install than traditional long-length HDMI cables. Other features include built-in Ethernet, eARC support, and HDCP 2.2 compliance. Qualtek HDMI 2.1 Active Optical Cables are directional, meaning each end is embossed with “Source” and “Display” to indicate the direction of the signal flow. These plug-and-play cables do not require USB power or external power adapters. The series is also HDR and 3D compatible as well as backwards compatible with previous HDMI standards.