4K60 8×8 Seamless Matrix Switcher with Video Wall
4 HDMI 2.0 + 4 HDBaseT Inputs, 4 HDMI 2.0 + 4 HDBaseT Outputs | 150m Extension | Zero-Black Screen Switching
HD8840K
Products / Matrix Switcher / Video Wall / Seamless Switching
Key Features
Seamless Matrix + Video Wall in One
Combines an 8x8 seamless matrix switcher and video wall processor in a single chassis, reducing system complexity, rack space, and installation cost.
Seamless Switching
Zero-black screen switching with no flicker or delay. Perfect for 24/7 mission-critical control rooms and live presentation environments.
4K60 Full Specification
Supports up to 3840×2160@60Hz 4:4:4, HDMI 2.0b, HDCP 2.2, 18Gbps bandwidth, and 8/10/12-bit color depth for professional-grade video quality.
150m HDBaseT Extension
HDBaseT outputs support up to 150m transmission distance over Cat5e/6 cable for 1080p60, enabling long-distance deployment without signal degradation.
Multiple Control Options
Front panel LCD, IR remote, RS-232, TCP/IP, Web GUI, and PC software control. Compatible with Crestron, AMX, and other third-party control systems.
64 Scene Presets
Save and recall up to 64 different matrix configurations instantly. One-button scene switching dramatically reduces operation time.
Why Choose HD8840K?
▸ Built-in Video Wall Processor
Integrated video wall functionality supports flexible video wall configurations from 1×2 to 4×2, accommodating up to 8 displays.
▸ Audio Embedding/De-embedding
Input cards support analog audio embedding (LPCM 2.0CH), output cards support analog audio de-embedding. 3.81mm phoenix terminal for professional audio integration.
▸ Intelligent EDID Management
Per-port independent EDID configuration with copy or built-in EDID options. Solves compatibility issues across different display brands and prevents black screen or scaling problems.
▸ Hybrid HDMI + HDBaseT Architecture
Provides a practical mix of local HDMI connectivity and long-range HDBaseT transmission, making system design more flexible for both centralized and distributed AV installations.
▸ Picture Quality Enhancement
Built-in scaler with adjustable brightness, contrast, color temperature, and sharpness. Output position adjustment (horizontal/vertical) for precise display alignment.
▸ Redundant Power Supply Option
Dual power supply card available for mission-critical applications. Automatic failover ensures continuous operation if primary power fails.
Detailed Specifications
- 8×8 seamless matrix switcher with 4 HDMI 2.0 inputs, 4 HDBaseT inputs, 4 HDMI 2.0 outputs, and 4 HDBaseT outputs.
- Supports video resolutions up to 4K60 (3840×2160@60Hz 4:4:4), HDMI 2.0b, HDCP 2.2, and 18Gbps bandwidth.
- HDBaseT extension: 1080p60 up to 150m, 4K30/4K60 up to 120m over Cat5e/6 cable.
- Supports video wall configurations of up to 8 displays for large-format visual presentation.
- Zero-black screen seamless switching technology — no flicker, no delay during source transitions.
- Per-port EDID management with copy from HDMI output or built-in EDID options (1080p, 4K30, 4K60 presets).
- Audio embedding on inputs and de-embedding on outputs via 3.81mm phoenix terminals (LPCM 2.0CH).
- 64 scene presets for instant configuration recall.
- Multiple control methods: front panel LCD, IR remote, RS-232, TCP/IP (Web GUI), and PC software.
- Picture quality adjustment: brightness, contrast, color temperature, sharpness (0-32 range).
- Output position adjustment: horizontal/vertical position and size control for precise display alignment.
- Supports mirror modes: off, horizontal mirror, vertical mirror, H+V mirror.
- Standard 19" rack-mount chassis (483mm × 377mm × 89mm, 1U height).
Ideal Applications
HD8840K delivers reliable, flexible solutions for any environment requiring multi-display management, large-format presentation, or real-time signal switching.
Command & Control Centers
Enables 24/7 mission-critical monitoring with seamless switching and video wall splicing, providing comprehensive situational awareness.
Corporate Boardrooms
Professional presentation switching with HDBaseT extension for clean cable management and long-distance display connectivity.
Educational Facilities
Multi-source lecture capture and display distribution across classrooms with flexible scene presets.
Retail Digital Signage
Dynamic content distribution to video walls with instant scene changes for promotional campaigns.
Broadcast & Production
Low-latency switching for live production environments with professional audio embedding/de-embedding.
Healthcare & Medical
Reliable signal distribution for surgical viewing, telemedicine, and medical imaging displays.
Technical Specifications
| Specification | HD8840K |
|---|---|
| Model | HD8840K |
| Matrix Size | 4K60 8x8 Seamless Matrix Switcher with Video Wall |
| Input Configuration | 4 × HDMI Type A, 4 × HDBaseT (RJ45), 8 × Audio (3.81mm Phoenix) |
| Output Configuration | 4 × HDMI Type A, 4 × HDBaseT (RJ45), 8 × Audio (3.81mm Phoenix) |
| Video Bandwidth | 18 Gbps |
| Maximum Resolution | 3840×2160@60Hz 4:4:4 (4K60) |
| HDMI Compliance | HDMI 2.0b |
| HDCP Compliance | HDCP 2.2 |
| Color Depth | 8/10/12-bit (4K30: 8/10/12-bit, 4K60: 8-bit 4:4:4) |
| Color Space | RGB, YCbCr 4:4:4/4:2:2/4:2:0 |
| Audio Support | HDMI: LPCM 2.0/5.1/7.1CH; Analog: LPCM 2.0CH (via phoenix terminal) |
| HDBaseT Distance | 1080p60: 150m; 4K30/4K60: 120m (Cat5e/6) |
| HDMI Distance | 1080p60: 15m; 4K30: 10m; 4K60: 8m |
| Video Wall | Up to 8-screen splicing with Bezel Compensation |
| Sync Technology | Gen-Lock, <0.1ms delay between outputs |
| Switching Type | Seamless (zero-black screen) |
| EDID Management | Per-port independent, copy from HDMI output or built-in EDID |
| Scene Presets | 64 scenes |
| Control Methods | Front panel LCD, IR remote, RS-232, TCP/IP, Web GUI, PC software |
| RS-232 Baud Rate | 115200 (default), configurable 2400-115200 bps |
| Network | 10/100Mbps Ethernet, DHCP/Static IP |
| Master Control Card (Optional 1) | 1 × RS-232 IN, 4 × RS-232 OUT, 1 × IR-SERIAL, 1 × RELAY, 1 × I/O, 3 × LAN, 1 × RESET Button |
| Master Control Card (Optional 2) | 1 × RS-232 IN, 1 × RS-232 OUT, 1 × LAN, 1 × RESET Button |
| Power Supply | AC 100-240V, 50/60Hz (single or redundant option) |
| Power Consumption | 40W-190W (depending on card configuration) |
| Dimensions (W×D×H) | 483mm × 377mm × 89mm (19" rack, 1U) |
| Weight | 5.95 kg (chassis without cards) |
| Operating Temperature | 0°C to 40°C (32°F to 104°F) |
| Storage Temperature | -20°C to 60°C (-4°F to 140°F) |
| Humidity | 20-90% RH (non-condensing) |
⚠ Deployment Notes
- Use certified Premium High Speed HDMI cables for 4K60 signals to ensure optimal quality and stability.
- HDBaseT connections require Cat5e/6 cable or better. Maximum distance varies by resolution (see specifications).
- For HDMI connections exceeding recommended distances, use active HDMI extenders or HDBaseT transmitters/receivers.
- Avoid passive splitters in the signal path to prevent signal degradation or instability.
- For third-party control system integration (Crestron/AMX/Extron), contact our engineering team for protocol documentation.
- IR remote requires 2× AAA batteries (not included).
- Ensure proper ventilation around the chassis. Maintain at least 1U spacing above and below in rack installations.
📦 Package Contents
- HD8840K 8×8 Matrix Switcher Chassis × 1
- 4× HDMI 2.0 Input Cards (pre-installed)
- 4× HDBaseT Output Cards (pre-installed)
- Main Control Card (pre-installed)
- Power Supply Card (pre-installed)
- IR Remote Control × 1 (batteries not included)
- RS-232 Cable (DB9 female to 3-pin phoenix + USB-to-RS232 adapter) × 1
- Power Cord (100-240V, region-specific) × 1
- Rack Mount Ears & Screws × 1 set
- User Manual × 1
Ready to Build Your 4K Video Wall & Matrix System?
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