4K 120M KVM HDMI Extender with HDMI Loop Out
1. Overview
The 4K 120M KVM HDMI Extender with HDMI Loop Out is a professional-grade signal extension solution designed to transmit 4K HDMI video, USB data, IR remote control, and stereo audio over a single Cat5e or Cat6 network cable. With a maximum transmission distance of 120 meters, this extender effectively replaces expensive and length-limited HDMI cables, offering a cost-effective and reliable infrastructure for a wide range of AV installations.
Whether deployed in corporate conference rooms, educational campuses, retail digital signage networks, or home theater systems, this extender delivers pristine signal quality with minimal latency and zero configuration complexity.
2. Key Features at a Glance
- Ultra-Long Distance Transmission – Extends signals up to 120 meters over a single Cat5e/Cat6 cable, far exceeding the limits of standard HDMI copper cables.
- 4K Ultra HD Support – Compliant with HDMI 1.4, supporting 4K@30Hz, 1080p, 720p, and lower resolutions with automatic downscaling compatibility.
- HDMI Loop-Out – The transmitter includes a dedicated HDMI output for local monitoring, allowing simultaneous viewing on a nearby display without using a separate splitter.
- Integrated KVM Functionality – Equipped with two USB ports on both transmitter and receiver, enabling remote control of a PC via keyboard, mouse, or touchscreen from up to 120 meters away.
- Bi-Directional IR Pass-Through – Includes IR emitter and receiver cables for remote control of source devices (e.g., set-top boxes, Blu-ray players) from the display end.
- Stereo Audio Extraction – Both transmitter and receiver feature 3.5mm audio output jacks, allowing independent audio routing to external speakers or amplifiers.
- Durable Metal Housing – The rugged metal chassis ensures effective heat dissipation, electromagnetic interference shielding, and long-term reliability in demanding environments.
- Plug-and-Play – No driver installation or complex network configuration required; simply connect the units and power on.
3. Technical Specifications
| Parameter | Details |
|---|---|
| Transmission Distance | Up to 120 meters (Cat5e/Cat6) |
| Supported Resolutions | 4K@30Hz, 1080p, 720p, 576p, 576i, 480p, 480i |
| HDMI Version | HDMI 1.4 / HDCP 1.4 compliant |
| Max Bandwidth | 340MHz |
| Max Baud Rate | 3 x 3.4 Gbps |
| Input Video Signal | 0.5~1.5 Volts p-p |
| Output DDC Signal | 5 Volts p-p (TTL) |
| HDMI Cable Input/Output Distance | ≤10m (AWG26 standard cable) |
| TX Operating Current | ≤350mA |
| RX Operating Current | ≤200mA |
| Power Adapter | Input: AC 100-240V 50/60Hz; Output: DC 5V/1A (2 units included) |
| Operating Temperature | -15°C to +55°C |
| Operating Humidity | 5% to 90% RH (non-condensing) |
| Dimensions (L x W x H) | 107 x 105 x 27.3 mm |
| Unit Weight | TX: 499g / RX: 494g |
| Shell Material | Metal |
4. Package Contents
| Item | Quantity |
|---|---|
| Transmitter (TX) | 1 pc |
| Receiver (RX) | 1 pc |
| IR Emitter & Receiver Cable Set | 1 pair |
| 5V/1A DC Power Adapter | 2 pcs |
| User Manual | 1 pc |
5. Use Cases / Application Scenarios
| Scenario | Description |
|---|---|
| Corporate Conference Rooms | Place the source PC in a secure equipment rack while extending video, keyboard, and mouse to the presentation display and tabletop control point up to 120 meters away. |
| Digital Signage & Retail Displays | Deploy 4K promotional screens across large store floors or shopping malls, with media players centralized in a back office for easy content updates. |
| Control & Command Centers | Operate servers, workstations, or surveillance systems from a remote operator desk while maintaining full USB and IR control over the target machines. |
| Educational Classrooms & Lecture Halls | Broadcast lecture content from the instructor’s PC to projectors or large displays at the front, with local monitoring via the loop-out port. |
| Home Theater & Multi-Room AV | Keep noisy or heat-generating AV equipment (e.g., gaming PCs, Blu-ray players) in a separate equipment room while extending 4K video and IR remote signals to the living room TV. |
| Touchscreen Interactive Displays | Connect a USB touchscreen monitor at the remote end and enjoy full touch responsiveness for interactive kiosks, whiteboards, or wayfinding systems. |
| Industrial & Manufacturing Environments | Place ruggedized displays in production areas while keeping control PCs in clean, climate-controlled offices, reducing equipment exposure to dust and heat. |
6. Frequently Asked Questions (FAQ)
Q1: What is the maximum transmission distance?
A: Up to 120 meters using Cat6 or Cat5e UTP/STP cable. For optimal performance, shielded (STP) cable is recommended in electrically noisy environments.
Q2: Does this extender support 4K resolution?
A: Yes, it supports 4K Ultra HD at 30Hz (HDMI 1.4), along with full backward compatibility for 1080p, 720p, and standard-definition signals.
Q3: What is the purpose of the HDMI loop-out port?
A: The loop-out port on the transmitter allows you to connect a local display for real-time monitoring or secondary viewing, eliminating the need for an external HDMI splitter.
Q4: Can I use a USB keyboard and mouse at the remote end?
A: Absolutely. The extender includes two USB ports on both TX and RX, supporting standard keyboards, mice, and other HID devices. It also supports USB touchscreen functionality.
Q5: How does IR control work?
A: The included IR emitter and receiver cables enable bi-directional IR pass-through, allowing you to control your source device (e.g., set-top box, media player) from the remote display location, or vice versa.
Q6: What type of network cable should I use?
A: Use standard Cat5e or Cat6 UTP/STP cable with RJ45 connectors. Shielded Cat6 is recommended for 4K signals at the full 120-meter distance to minimize interference.
Q7: Does the extender support audio extraction?
A: Yes, both the transmitter and receiver have 3.5mm stereo audio output jacks, allowing you to extract and route audio to external speakers, amplifiers, or recording devices independently of the HDMI stream.
Q8: Is power included?
A: Yes, the package includes two 5V/1A power adapters – one for each unit – ensuring both ends are powered independently.
Q9: Can I use this extender with a touchscreen monitor?
A: Yes, the USB ports fully support touchscreen signal transmission, enabling interactive applications such as digital whiteboards, kiosks, and POS systems.
Q10: Is any software or driver installation required?
A: No. The extender is plug-and-play. No drivers, software, or network configuration are needed – simply connect the cables and power on the units.
Q11: What are the operating temperature and humidity limits?
A: The extender operates reliably in temperatures ranging from -15°C to +55°C and humidity levels from 5% to 90% RH (non-condensing), making it suitable for both indoor and semi-outdoor installations.
7. Conclusion
The 4K 120M KVM HDMI Extender with HDMI Loop Out is a versatile, high-performance solution that addresses the real-world challenges of long-distance AV signal distribution. By combining 4K video extension, USB KVM control, IR pass-through, audio extraction, and local loop-out monitoring into a single compact and durable unit, it offers exceptional value for professional installers, IT managers, system integrators, and home users alike. Its plug-and-play simplicity, robust metal construction, and wide compatibility make it a reliable choice for any application requiring high-quality signal extension beyond the reach of standard HDMI cables.
