| Specification | Details |
|---|---|
| Brand | UGREEN |
| Model | 55506 / HD183 |
| Cable Type | Active Optical HDMI Cable (AOC) |
| Standard | HDMI 2.1 Ultra High Speed |
| Length | 20.0 m |
| Maximum Resolution | 8K @ 60 Hz |
| Also Supports | 4K @ 120 Hz |
| Bandwidth | 48 Gbps |
| Connector Type | HDMI Type‑A (Male to Male) |
| HDCP Support | HDCP 2.2 / 2.3 (backward compatible) |
| Audio Support | eARC, Dolby Atmos, DTS:X (immersive audio) |
| HDR Support | HDR10, HDR10+, Dolby Vision, Dynamic HDR |
| Additional Features | VRR, ALLM, stable long‑distance optical transmission |
| Build | Fiber optic core + durable outer jacket, gold‑plated HDMI ends |
| Use Cases | TVs, projectors, consoles, gaming, home theater, long HDMI runs |
| Plug & Play | Yes (no external power) |








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