4×2 HDMI 2.0 Matrix Switcher with WebGUI, Telnet & RS-232 Control
KanexPro HDMX42-18G 4×2 HDMI 2.0 matrix switcher with WebGUI, Telnet, and RS-232 control. 4K/60Hz 4:4:4, Apple HDCP mode, 7 EDID presets. CE/FCC/UL…
Basic 4×2 HDMI matrix switchers offer front panel and IR control — but commercial integrators increasingly require IP-based management for remote operation, diagnostics, and control system integration. The KanexPro HDMX42-18G delivers a full three-interface control suite — WebGUI, Telnet, and RS-232 — alongside front panel and IR, giving integrators complete flexibility to manage the unit from any network-connected device or third-party control system. Supporting 4K@60Hz 4:4:4 with 18Gbps bandwidth and HDCP 2.2 compliance, the HDMX42-18G routes any of four HDMI sources to two independent displays at full 4K fidelity. Apple HDCP mode allows non-HDCP content from Apple and similar devices to display on non-HDCP screens without signal loss. Seven EDID presets — including sink-learned and resolution-specific options — handle mixed source and display environments. Compact half-rack form factor fits cleanly into any AV furniture or rack install.
- HDMI 2.0 and HDCP 2.2 compliant — 18Gbps / 600MHz bandwidth
- Routes 4 HDMI inputs to 2 independent HDMI outputs at up to 4K@60Hz 4:4:4
- WebGUI control — full routing, EDID, HDCP, naming, and network settings via browser
- Telnet control — CLI access for scripting and control system integration
- RS-232 control (115200 baud) — full command set for third-party control system integration
- Apple HDCP mode per input — allows non-HDCP content from Apple devices on non-HDCP displays
- EDID management: 7 presets (SINK A/B, 720P, 1080P, 4K_3G, 4K_Y420, 4K_6G) — ALL or per-input APPOINT mode
- Front panel button control with green/red power LED and source indicator LEDs
- IR remote control (CR-155) with IR extender cable included
- HDMI IN 1 accessible from front panel; HDMI IN 2–4 on rear
Specifications| Video Bandwidth | 600 MHz / 18 Gbps |
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| Input Ports | 4× HDMI Type A |
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| Output Ports | 2× HDMI Type A |
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| Control Interfaces | 1× RS-232 (DE-9) • 1× IP Control (RJ-45) • 1× IR Extender (3.5mm) |
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| Service Port | 1× USB 2.0 (firmware update) |
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| Supported Resolutions | 480i@60Hz – 4K@60Hz (4:4:4, 8-bit) • VGA@60Hz – WUXGA@60Hz |
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| Baud Rate | 115200 bps |
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| IR Frequency | 30–50 kHz |
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| ESD Protection | ±12kV (Air) • ±8kV (Contact) |
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| Housing | Metal, Black |
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| Dimensions | 9.45″ × 1.69″ × 4.09″ (240 × 43 × 104mm) |
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| Net Weight | 1.75 lbs (796g) |
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| Power Supply | DC 5V/2.6A (CE/FCC/UL certified) |
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| Power Consumption | 7.1W |
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| Operating Temp | 32°F–104°F (0°C–40°C) |
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| Storage Temp | −4°F–140°F (−20°C–60°C) |
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| Relative Humidity | 20–90% RH (non-condensing) |
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| Regulatory | CE • FCC • UL |
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| 1080p@60Hz (12-bit) | Up to 33 ft (10m) |
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| 4K@60Hz (4:4:4, 8-bit) | Up to 10 ft (3m) |
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| 1× | 4×2 HDMI Matrix Switcher |
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| 1× | IR Remote (CR-155) |
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| 1× | IR Extender Cable |
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| 1× | 5V/2.6A DC Power Adapter |
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| 1× | Operation Manual |
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Questions
- How many EDID presets does the HDMX42-18G offer?
- Seven EDID presets: SINK A, SINK B, 720P, 1080P, 4K_3G, 4K_Y420, and 4K_6G, selectable in ALL mode or per-input APPOINT mode.
- What is the maximum HDMI cable length supported for 4K sources?
- Up to 10ft (3m) for 4K@60Hz (4:4:4, 8-bit) sources, or up to 33ft (10m) for 1080p@60Hz (12-bit) sources.
- How do I enable Apple HDCP mode from a control system?
- Send the RS-232 command HDCPIN [x] 1, where x is the input number, to allow non-HDCP content from Apple devices to display on a non-HDCP display. It can also be enabled per input via the WebGUI HDCP tab.
- What control methods does the HDMX42-18G support?
- WebGUI (browser-based routing, EDID, HDCP, naming, and network settings), Telnet CLI, RS-232 (115200 baud, full command set), front panel buttons, and IR remote (CR-155).
- How do I update firmware on the HDMX42-18G?
- Connect a USB cable to the rear SERVICE (USB 2.0) port, which is used for firmware updates.
- How is the HDMX42-18G powered?
- Via the included DC 5V/2.6A power adapter connected to the rear DC 5V port; power consumption is 7.1W.
- An Apple TV is not displaying on a non-HDCP monitor, what should I do?
- Enable Apple HDCP mode via the WebGUI HDCP tab, or send the RS-232 command HDCPIN [x] 1, where x is the input number.
- How do I access the WebGUI if it is not loading?
- Connect to the CONTROL (RJ-45) port and navigate to 192.168.1.50 in a browser. No password is required by default.
- Is the HDMX42-18G a compact solution for small rooms?
- Yes, it has a compact half-rack metal housing measuring 9.45 x 1.69 x 4.09 inches (240 x 43 x 104mm).
- What makes the HDMX42-18G suited for mixed Apple and non-HDCP display environments?
- Its per-input Apple HDCP mode allows non-HDCP content from Apple devices to display on non-HDCP displays without additional HDCP-stripping hardware.