Optical HDMI 2.1 cables are available mainly in standard fiber and armored fiber constructions. Both share the same transmission principle; the difference lies in cable protection and suitability for engineering installations. The KING KABLE HD012 armored pure optical fiber HDMI 2.1 cable with detachable MPO design illustrates the value of the armored approach.

The HD012 uses a 6-core all-optical construction with no metal conductors, so it emits no electromagnetic radiation and is immune to external EMI. It provides 48Gbps bandwidth, supports 8K@60Hz and 4K@120Hz with HDR and eARC, remains compatible with HDMI 2.0/1.4 devices, and reaches up to 300 meters for large venues and long-run installations.

Compared with standard fiber HDMI cables, the armored version adds a metal armor layer beneath the PVC jacket. At 5.5mm diameter it tolerates 200N long-term and 400N short-term crush force, 100N long-term and 200N short-term tensile force, with a 50mm static minimum bend radius. In conduit, buried, tray or foot-traffic conditions the fibers are far less likely to be crushed or broken, improving long-term reliability.

The HD012 uses HDMI Type-A male connectors with gold-plated copper shells and die-cast zinc alloy housings. Its detachable MPO design allows routing first and module termination later, and supports future upgrades. Operating range is -20C to +80C, plug and play with no external power (unidirectional, source to display), certified to ROHS 2.0 and REACH, with custom lengths, jackets and connector marking for government conference systems, medical imaging, security surveillance and LED wall matrices.