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4x2 Seamless HDMI Matrix Switcher with Multiview

VLML-4x2U30A

18Gbps 4x2 seamless HDMI matrix switcher with built-in multiview, routing four sources to two outputs at 4K60 4:4:4 while showing multiple sources on a single screen.
Multiview layouts, including single, PIP, picture-by-picture, triple, quad, and custom arrangements, with seamless switching.
HDR10, HDR10+, HLG, and Dolby Vision pass-through preserve high-dynamic-range sources, and built-in HDR-to-SDR conversion adapts them for SDR displays.
Four looping HDMI inputs for cascading, de-embedded optical and balanced analog audio, and control by front panel, IR, RS-232, or TCP/IP web GUI.

Product Description

The VLML-4x2U30A is an 18Gbps 4x2 seamless HDMI matrix switcher with integrated multiview, routing four HDMI sources to two outputs at resolutions up to 4K60 4:4:4. It is HDCP 2.2 and 1.x compliant, so both current and older sources are supported.

In multiview mode, several sources appear on a single screen through Auto, Single, PIP, picture-by-picture, Triple, Quad, and custom layouts. Multiview and single-screen content are available on Output 1, while Output 2 provides a dedicated single-screen feed. Seamless switching in matrix mode moves between sources with no black screen or tearing, and auto or manual switching modes suit both hands-off and controlled operation.

The switcher passes through HDR10, HDR10+, HLG, and Dolby Vision, and converts HDR to SDR when displays require it. Each of the four HDMI inputs includes a loop-out for cascading connections. De-embedded audio is available on an optical S/PDIF output and a balanced analog line output. Control is flexible across front panel buttons, IR remote, RS-232 or TCP/IP API, and the built-in web GUI, with input EDID management on board. The design suits video conference rooms and similar collaboration spaces.

Key Features

HDMI 2.0b video up to 4K60 4:4:4, HDCP 2.2 and 1.x compliant
Multiview layouts: Auto, Single, PIP, picture-by-picture, Triple, Quad, and customized arrangements
Seamless single-screen switching with no black screen or tearing, plus fast switching in multiview
HDR10, HDR10+, HLG, and Dolby Vision pass-through, with HDR-to-SDR conversion
Four HDMI inputs, each with loop-out for cascading connections
Two HDMI outputs: Output 1 for single or multiview, Output 2 for single screen
De-embedded audio on optical S/PDIF and balanced analog line outputs
Auto or manual switching modes
Advanced input EDID management
Control via front panel, IR remote, RS-232, TCP/IP, or web GUI

Multi-View Mode

The VLML-4x2U30A displays several sources on a single screen through Auto, Single, PIP, picture-by-picture, Triple, Quad, and custom layouts. Multiview output is carried on Output 1, while Output 2 delivers a dedicated single-screen feed. Multiview uses fast switching for quick source changes, and matrix mode adds seamless single-screen switching with no black screen or tearing between sources.

Downloads

DATA SHEET (PDF)

USER MANUAL (PDF)

Ideal Applications

Video conference rooms presenting multiple sources on one display with clean seamless switching
Huddle and collaboration spaces combining several inputs into PIP or quad layouts
Boardrooms and dual-display setups using multiview on Output 1 and a single-screen feed on Output 2
Classrooms and training rooms merging a laptop, document camera, and media into one view
Mixed-display environments where HDR sources must reach both HDR and SDR screens
Cascaded installations using the per-input loop-outs to feed additional displays or devices

Specifications

  
  Technical
HDMI ComplianceHDMI 2.0b
HDCP ComplianceHDCP 2.2 and 1.x
Video Bandwidth18Gbps
Input Video ResolutionUp to 4K@60Hz, including 3840×2160p and 4096×2160p at up to 60Hz, plus PC and SD/HD formats from 640×480p60 and 480i through 1080p60
Output Video ResolutionHDR Bypass Mode: passthrough from input. HDR to SDR Mode: scaled output up to 3840×2160p60 and 4096×2160p60, and down to 1024×768p60
Color Depth8 / 10 / 12-bit
Color SpaceRGB, YCbCr 4:4:4, YCbCr 4:2:2, YCbCr 4:2:0
HDRHDR, HDR10, HDR10+, Dolby Vision, HLG
IR Level12Vp-p
IR FrequencyWideband 20K–60KHz
Transmission DistanceHDMI passive cable: 9.8ft / 3m
Audio FormatsHDMI Passthrough: LPCM, Dolby Digital/Plus/EX, Dolby TrueHD, Dolby Atmos, DTS, DTS-HD, DTS-HD Master Audio, DTS-96/24, DTS High Res. 

Audio Breakout: Optical Out up to LPCM/Dolby/DTS 5.1CH; Line Out LPCM 2CH (sample rate 32–192kHz)
ESD ProtectionIEC 61000-4-2: ±8kV (air-gap discharge), ±4kV (contact discharge)
Line Analog Audio Out
Output Impedance600 Ohm balanced; 300 Ohm unbalanced
Output Level (Maximum)8.2dBu (2Vrms) @ balanced; 2.2dBu (1Vrms) @ unbalanced
Frequency Response20Hz to 20kHz (±0.5dB)
Dynamic Range>90dB @ 0dBu, 1kHz A-weighted
Audio S/N Ratio>90dB @ 0dBu, 1kHz A-weighted
Audio THD+N<0.01% @ +4dBu, 1kHz
Audio Output Delay<1ms
Connection
Input Ports4 × IN [HDMI Type A, 19-pin female]
Output Ports1 × OUT 1 [HDMI Type A, 19-pin female, single/multiview output]; 
1 × OUT 2 [HDMI Type A, 19-pin female, single screen output]; 
4 × LOOP [HDMI Type A, 19-pin female]; 
1 × LINE AUDIO OUT [5-pin 3.5mm phoenix connector]; 
1 × OPTICAL AUDIO OUT [S/PDIF]
Control Ports1 × RS-232 [3-pin 3.5mm phoenix connector, RS-232 API control]; 
1 × LAN [RJ45, TCP/IP and web GUI]; 
1 × SERVICE [USB-C, USB 2.0 only, firmware upgrade]; 
1 × IR EXT [3.5mm audio jack, IR IN 12V level]
Mechanical
HousingFront panel: Aluminum; Rear case: Metal Enclosure
ColorBlack
Dimensions440mm [W] × 200mm [D] × 44mm [H]
Weight2.65kg
Power SupplyAC 100–240V 50/60Hz
Power Consumption61.6W (Max)
Operating Temperature0°C–40°C / 32°F–104°F
Storage Temperature-20°C–60°C / -4°F–140°F
Operating Humidity20–80% RH (non-condensing)
Storage Humidity10–90% RH (non-condensing)

What’s in the Box

1 × VLML-4x2U30A 4x2 Seamless Matrix Switcher
1 × IR Remote Control
1 × IR Wideband Receiver Cable (1.5m)
1 × 3-pin 3.5mm Phoenix Connector (male)
1 × 5-pin 3.5mm Phoenix Connector (male)
2 × Mounting Ear
8 × Machine Screw
1 × Multinational AC Power Cord (1.5m, optional)
1 × User Manual

Frequently Asked Questions

What is the VLML-4x2U30A?
The VLML-4x2U30A is an 18Gbps 4x2 seamless HDMI matrix switcher with built-in multiview, routing four sources to two outputs at up to 4K60 4:4:4 while showing multiple sources on one screen.

What multiview layouts does it support?
It supports Auto, Single, PIP, picture-by-picture, Triple, Quad, and customized layouts, with multiview carried on Output 1.

Can both outputs show a multiview layout?
Output 1 carries single or multiview content, while Output 2 provides a dedicated single-screen feed.

Does it support HDR?
Yes. It passes through HDR10, HDR10+, HLG, and Dolby Vision, and can convert HDR to SDR for displays that do not accept HDR.

Does it switch without dropouts?
Yes. Matrix-mode switching is seamless with no black screen or tearing, and multiview uses fast switching for quick source changes.

What can I do with the HDMI loop-outs?
Each of the four HDMI inputs has a loop-out, letting you cascade the same source to another display or device.

What audio outputs does it provide?
De-embedded audio is available on an optical S/PDIF output (up to 5.1CH) and a balanced analog line output (LPCM 2CH).

Is the USB-C port for video capture?
No. The USB-C port is a service connection for firmware upgrades only; it does not capture video.

How is the VLML-4x2U30A controlled?
It can be controlled from the front panel, IR remote, RS-232 or TCP/IP API, and the built-in web GUI.