HDMI Series
4 In 2 Out HDMI Switch with Without Auto Fallback
The ML-402 is a smart 4×2 HDMI switch that connects up to four source devices and routes the selected signal to two display outputs simultaneously, with automatic Without Auto Fallback switching to maintain uninterrupted signal output in professional AV environments.
- 4 HDMI inputs and 2 HDMI outputs for centralized source management
- Without Auto Fallback automatically switches to an available input if the active source disconnects
- Dual outputs allow the same source to be displayed on two screens simultaneously
- Stable signal management minimizes handshake delays and prevents display flickering
- Compact form factor suitable for integration into AV racks, cabinets, and control desks
Yes
Max Resolution
1080p Full HD
Audio Input
Stereo Analogue
Output
Single HDMI
- In-house manufactured
- 24hr response
- 2,000+ clients served
Product Overview
What makes the ML-402
The ML-402 HDMI switch allows up to four HDMI source devices to be connected to two display outputs. Source devices may include computers, media players, streaming devices, presentation systems, or video monitoring equipment. The switch enables operators to select which input is displayed on the connected outputs without manually reconnecting cables.
With dual HDMI outputs, the ML-402 sends the selected input signal to two displays simultaneously. This is particularly useful in environments where the same content must be visible on multiple screens, eliminating the need for additional splitter hardware.
The Without Auto Fallback feature ensures continuous video output at all times. If the currently selected HDMI source stops transmitting or becomes disconnected, the switch automatically selects another available input without any manual intervention from the operator. This functionality is critical in environments where display downtime is not acceptable.
The device is designed to maintain stable HDMI signal integrity throughout all switching operations. Internal signal management minimizes handshake delays and helps prevent common HDMI issues such as signal dropouts, display flickering, or resolution mismatches — making it suitable for professional AV installations requiring consistent performance.
HDMI Inputs
Presentation Systems
Need a quote?
Our team responds within 24 hours with a tailored quote for your project or bulk order.
Key Features
Built for professional AV environments
Four inputs. Two outputs. Automatic fallback. Stable signal management for uninterrupted display operation.
4x2 HDMI Switching Capability
Supports connection of up to four HDMI source devices, allowing system integrators to consolidate multiple content sources within a single switching device and control them from one location.
- Supports up to 4 HDMI input devices
- Centralized source switching without cable changes
- Compatible with computers, media players, and presentation systems
Dual HDMI Output Displays
Features two HDMI outputs that allow the selected source to be displayed on two screens simultaneously. Eliminates the need for additional splitters or distribution devices in the AV infrastructure.
- Send the same signal to two displays at once
- Useful in meeting rooms, training facilities, and monitoring environments
- Simplifies AV infrastructure by reducing cable and device count
Auto Fall Back Switching
If the currently selected HDMI source stops transmitting or becomes disconnected, the switch automatically selects another available input, ensuring the connected displays always receive an active video signal.
- Prevents screen interruptions without manual intervention
- Ensures continuous display operation in critical environments
- Particularly valuable in digital signage and control rooms
Stable HDMI Signal Transmission
Designed to maintain stable HDMI communication between source devices and displays during switching operations. Internal signal management helps minimize handshake delays and ensures smooth transitions between inputs.
- Prevents signal dropouts and display flickering
- Reduces resolution mismatch issues during switching
- Reliable performance for professional AV installations
Flexible Installation and Integration
By connecting multiple HDMI sources into a single switching device, the ML-402 simplifies AV infrastructure and reduces cable clutter. Its compact design allows installation within equipment racks, control desks, or AV cabinets.
- Integrates with HDMI extenders, display processors, and distribution systems
- Rack-mountable and cabinet-compatible form factor
- Reduces physical cable management overhead
Centralized AV Device Management
Operators can quickly switch between devices without altering physical connections, enabling efficient management of multi-source AV environments from a single location.
- Power status LED
- Per-output activity indicators
- Aids installation verification and fault diagnosis
Installation
Setup and integration options
The ML-402 supports straightforward installation within existing AV infrastructure. It can be placed inline within an AV rack, control desk, or cabinet and connects directly to HDMI source devices and display outputs.
01
Standalone AV Switching
In a standard setup, up to four HDMI source devices connect to the ML-402 inputs. The selected source signal is simultaneously routed to both HDMI outputs, driving two displays from a single switch. Operators select the active input manually or allow Auto Fall Back to manage switching automatically when a source becomes inactive.
02
Integration with AV Systems
The ML-402 can be integrated with other AV components including HDMI extenders, display processors, and distribution amplifiers. Its compact form factor allows it to be mounted within equipment racks or AV cabinets as part of a larger signal distribution infrastructure. It works seamlessly alongside switchers and matrix systems for expanded AV installations.
Where the ML-402 performs
Designed for professional environments where multi-source switching, dual-display output, and uninterrupted signal continuity are essential requirements.
Conference and Meeting Rooms
Switch between multiple presentation sources such as laptops, media players, and wireless presentation systems, and display them on dual screens for improved audience visibility without manual cable changes.
Control Rooms
Manage multiple video feeds and display them across monitoring screens. Auto Fall Back ensures display outputs remain active even if a source device drops out unexpectedly, maintaining continuous monitoring operations.
Digital Signage Systems
Ensure continuous display output across signage screens by automatically switching to an active backup content source if the primary source disconnects, preventing blank screens in public-facing environments.
Educational and Training Facilities
Allow instructors to easily switch between multiple teaching devices including laptops, visualizers, and media players, with dual-screen output enabling simultaneous visibility for both instructor and audience displays.
Broadcast and Production Environments
Route video signals from multiple source devices to monitoring displays in broadcast workflows. The stable signal management and Auto Fall Back capability support reliable output during live production sessions.
Multi-Source Presentation AV Setups
Consolidate multiple HDMI devices into a single managed switching point within AV racks or presentation counters, reducing cable clutter and enabling operators to manage source selection from one centralized device.
Full specification sheet
- Input / Output Configuration
- Switching Features
- Signal Management
- Installation
- General
FAQs about the ML-402
What exactly does the ML-402 4x2 HDMI switch do, and who is it for?
It allows you to connect up to four HDMI devices such as laptops, media players, or presentation systems and display any one of them on two screens at the same time. There is no need to unplug or switch cables manually, making it ideal for conference rooms, control rooms, and training spaces.
What is the Without Auto Fallback feature, and why does it matter?
The Without Auto Fallback feature ensures your screens do not go blank if your main source disconnects. It automatically switches to another active input, keeping your content running without any manual intervention. This is especially useful in professional environments where downtime is not acceptable.
Will there be any disruption or flickering when switching between HDMI sources?
The ML-402 is designed for smooth transitions between inputs. It manages signals efficiently to reduce delays, so switching between devices feels seamless without noticeable flickering or sudden drops in resolution.
Do I need an additional splitter to display the same content on two screens?
No, a separate splitter is not required. The ML-402 already comes with dual HDMI outputs, which means it can send the same content to two displays at the same time, keeping your setup simple and clutter-free.
Can the ML-402 be easily integrated into an existing AV setup?
Yes, it is built to fit into your current AV system. It works with HDMI extenders, processors, and distribution systems, and its compact size makes it easy to place inside racks or cabinets without taking up much space.
Can I still switch inputs manually, or is only automatic switching available?
Both options are available. Operators can manually select which of the four HDMI input sources is displayed on the connected outputs. The Auto Fall Back feature operates independently and activates only when the current source becomes unavailable, ensuring the displays remain active at all times.
Is the ML-402 suitable for continuous operation in critical environments such as command centers or broadcast setups?
Yes. The ML-402 is designed for reliable, professional-grade performance. The combination of stable signal transmission, internal handshake management, and Auto Fall Back switching makes it well-suited for environments where uninterrupted display output is essential, including command centers, broadcast monitoring, and digital signage operations.
Products you may also need
