SYNERGY21 Active Optical HDMI 2.1 Cable, ST/ST, 25m, 8K60Hz, 48Gbps, Black S215914

For professional AV installers and home cinema enthusiasts who need to run 8K video over long distances, this 25-meter active optical HDMI 2.1 cable delivers the full 48 Gbps bandwidth without signal loss. The hybrid fiber-copper construction carries high-speed data over optical fiber while copper conductors handle power and control, ensuring reliable performance in conference rooms, lecture halls, and high-end home theaters.

Key specifications

• HDMI 2.1 active optical cable (AOC), 25 m length
• Supports 8K UHD (7680 × 4320) at 60 Hz and 4K at 120 Hz
• 48 Gbps bandwidth with Dynamic HDR, eARC, VRR, ALLM, QFT
• HDCP 2.3 compliant, directional (source/display specific)
• Bus-powered from HDMI port, no external power needed
• Connectors: HDMI Type A male to HDMI Type A male

Why choose it

Unlike passive copper cables that lose signal beyond a few meters, this active optical cable maintains full HDMI 2.1 performance over its entire 25-meter length. It supports the latest gaming features like Variable Refresh Rate and Auto Low Latency Mode, making it ideal for next-gen consoles and high-refresh displays. The slim, flexible fiber optic core simplifies installation through conduits and tight spaces.

Ideal use cases

• 8K video distribution in commercial AV systems
• Long-distance connection from a PC or console to a projector or large display
• Home theater setups where the source is far from the screen
• Digital signage and video walls requiring high bandwidth

Good to know

This cable is directional: connect the source end to your player or PC and the display end to your TV or monitor. It is bus-powered, drawing power from the HDMI port, so no separate power supply is required. The active optical technology ensures immunity to electromagnetic interference, delivering a clean signal even in electrically noisy environments.