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SY Electronics Apollo 42

4:2 4K HDMI Multi-Viewer and Seamless Matrix Switch

4 × HDMI 2.0 Inputs; 2 × HDMI 2.0 Output; 4K 60Hz 4:4:4, PIP

£1027 (£1232.40 inc. VAT)
Availability: 3-5 days

SY Electronics Apollo 42

The SY Apollo 42 is a Seamless Matrix & Multi-Viewer with 4x HDMI 18G inputs and 2x HDMI 2.0 outputs. Each output can perform a variety of functions independently, with wide range Scaling up to 4K 60Hz 4:4:4 and is capable of displaying in Single, Dual, Triple, Quad Multi-View or various PIP modes. Dynamic Audio selection allows for choice between any of the HDMI inputs' audio, regardless of the chosen video signal. De-embeded audio via optical Toslink or L+R analogue output is available independently on both channels. Apollo 42 provides a convenient solution for easily managing multiple sources across 2 displays and is suitable for collaboration, educational environments, seamless presentation, control centres and gaming.

SY Electronics Apollo 42 Key Features

  • Seamless 4x2 Matrix — Seamlessly switch between 4x HDMI 2.0 inputs, to 2 × HDMI 2.0 outputs. Capable of 4K60Hz 4:4:4 18G.
  • 2 Independent Outputs — Each of the 2 HDMI outputs may be independently configured including Multi-view, PiP, Scaling and Auto-Switching.
  • Auto or Manual Switching — When set to Single mode, the auto-switch feature will automatically select the newly connected source. When currently selected source is lost, the next available active input will be automatically selected. Manual switching can be carried out from the front panel, IR or RS232.
  • Multi-View mode — Any of the 4 available inputs can be independently selected per display to be viewed in either Single, Dual, Triple or Quad view, with various options of window size.
  • PiP – Each output can be independently configured to its own custom Picture In Picture mode, with various options of window sizing and position.
  • Wide Range Scaling — Each output has its own full Up/Down Scaler with complete control over both resolution and refresh rate, guaranteeing optimal image quality based on the displays' capabilities.
  • Audio Control — Any available audio inputs can be paired with the video at any time, with mute function available. Audio can also be de-embedded via Toslink or Analogue L/R RCA jacks.
  • VKA — The Video Keep Alive function can maintain a video output when there is no signal. When there is no active input signal, the display can be configured to show a blue or black image, ensuring that the screens remain active until a new signal is detected.
  • IT Content Setting — The IT Content (ITC) setting tells the display to use its own video quality processing algorithms, instead of the Intel graphics driver when movies are played in full-screen mode to ensure the best video quality.
  • HDCP Control — Support and management of HDCP ensures compatibility. Convert from HDCP 2.2 down to HDCP 1.4 or simply put the unit into cascade mode.

SY Electronics Apollo 42 Downloads

Seamless Switching
Audio Switching
4K 4096*2160 and 3840*2160 Resolution
Down Converter
4:4:4 Chroma sampling

SY Electronics Apollo 42 Specifications


HDMI 2.0 4 × (18Gbps) - HDR, HDR10, HDR10+, HLG and Dolby Vision Formats supported


HDMI 2.0 2 × (18Gbps) - HDR, HDR10, HDR10+, HLG and Dolby Vision Formats supported
Digital Audio 2 × Toslink
Analogue Audio 2 × RCA Stereo


Trs IR Input 1 × 3.5mm
RS-232 1 × Pluggable Terminal Block
Power 1 × 12V DC Power input (2.1mm barrel jack)

HDCP Compliance

Input HDCP HDCP 1.4, 2.2
Output HDCP Fully controlled - Pass through, 1.4, 2.2, Cascade mode



Input Resolutions All HDMI And Pc Resolutions Up To 4k 60hz 4
Colour Spacing Pass Through Of RGB, YCbCr 4
Colour Depth 8, 10, 12 bits
Scaling Up and Down-Scaling (Resolution and Refresh Rate)
Various Resolutions And Refresh Rates Up To 4k@60hz 4
Audio Formats Supported 2.0, 2.1, 5.1, 7.1 channel LPCM, Dolby, AC3, DTS
De-embedded Audio Out Optical Toslink and line level analogue audio RCA L/R


Power Consumption 14W max
Power Supply 12V 2.5A DC - (2.1mm barrel jack)
Operating Temperature Range 0 ~ +40°C (32 ~ 104F)
Operating Humidity Range 10 ~ 90% RH (Non-condensing)
Dimensions (WDH) 270 × 130 × 30mm
Weight (net) 620g
In The Box 1 × SY Apollo 42
1 × User manual
1 × 12V 2.5A DC PSU (Locking)
1 × User Manual