UGREEN HDMI Extender 70m – CM455
Key Features
Brand: UGREEN
Model: 20519
Category: HDMI Extender
Features: Convert HDMI signal to 70m long network cable
Maximum resolution: 1080P@60Hz
Support network cable length: 70M cat5e and Cat6 (please choose pure copper standard network cable)
Support HDMI Input and Output cable up to 20M (26AWG pure copper cable)
HDCP 1.4 and 3D projection.
Support read and write EDID technology, automatically optimize the resolution.
Support EQ automatic adjustment technology, optimize automatic and equalize sound.
1 Year Warranty
Ugreen HDMI Extender 70m CM455 Product Overview
The Ugreen HDMI Extender 70m CM455 is a professional-grade point-to-point signal transmission kit designed to overcome the strict length limitations of standard HDMI cabling. This Ugreen hardware solution comprises a dedicated transmitter and receiver pair that converts high-definition audio and video signals for long-distance routing over a single cost-effective network cable. It serves as a reliable engineering alternative for structural wall wiring, reducing infrastructure costs while preventing the signal degradation commonly found in extended HDMI installations.
Long-Range Signal Booster Architecture
Using standard Cat5e, Cat6, or Cat7 pure copper Ethernet cables, this extender pair boosts uncompressed HDMI signals across distances up to 70 meters. It completely eliminates latency and pixelation over long distances, making it a rugged alternative to expensive active fiber-optic cables.
Full HD Resolution and 3D Projections
The Ugreen system delivers clear and vibrant video reproduction supporting resolutions up to Full HD 1080p at a smooth 60Hz refresh rate. It fully complies with HDMI 1.4 and HDCP 1.4 standards, ensuring secure handshake synchronization while maintaining native support for 3D projection setups and deep color profiles.
Smart EDID and EQ Optimization Technologies
Equipped with built-in Extended Display Identification Data (EDID) management, the extender automatically reads, writes, and optimizes resolution handshakes between the source and target display hardware. Integrated Equalization (EQ) auto-adjustment technology balances the sound dynamics dynamically to match the exact length of the deployed network line.
Integrated Audio Formats and IR Pass-Through
The hardware platform routes embedded multi-channel digital audio formats synchronously with the video feed, fully supporting PCM 2.0, Dolby Digital, and DTS sound layouts. It also incorporates bi-directional infrared (IR) pass-through extensions, letting users operate source media equipment like streaming boxes or media players from the destination display location using standard remotes.
Key Benefits for Users
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- Structural Cost Reductions: Replaces thick, rigid, and fragile long-distance HDMI lines with highly flexible and cheaper standard network cables.
- Hardware-Level Integration: Pure plug-and-play setup works immediately across Windows, macOS, and Linux infrastructures without installing any device drivers.
- Visual Diagnostic Indicators: Dedicated physical LED status lights on both the transmitter and receiver provide real-time validation of power distribution and active link continuity.
- Constant Operational Stability: Power distribution handled via dedicated external 5V power adapters ensures reliable continuous operation over long transmission distances.
Ideal Applications and Use Cases
Surveillance Control Centers
Enables security teams to position central network video recorders (NVR) or digital video recorders (DVR) in secure server rooms while routing real-time monitoring feeds directly to distant observation desk monitors.
Large Corporate Infrastructure
Perfect for routing audio and video signals cleanly through building conduits, floorboards, or ceiling spaces from boardroom podiums to remote display screens.
Multi-Tier Educational Classrooms
Allows institutional technicians to link centralized lecture media sources to far-end projection modules or interactive display installations located deep within auditoriums.
Public Digital Signage
Provides retail environments and hospitality lobbies with a mechanism to broadcast advertisement content to multiple wall-mounted televisions while keeping source hardware tucked out of reach.
Summary Profile
- Product Brand: Ugreen
- Model Identifier: CM455
- Product Part Number: 20519
- Interface Transmitters: 1x HDMI Input, 1x RJ45 Output, 1x IR Port
- Interface Receivers: 1x RJ45 Input, 1x HDMI Output, 1x IR Port
- Connection Media: Single Cat5e, Cat6, or Cat7 Ethernet Cable
- Ultimate Extension Metric: Up to 70 Meters
- Performance Metric: 1080p Full HD at 60Hz
- Security Protocols: HDCP 1.4 Compliant
- Structural Composition: High-Impact ABS Structural Housing

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