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SY Electronics MFS51-18G

5:1×2 HDMI 2.0 / DP / VGA Presentation Switcher

3 × HMI, 1 × DisplayPort, 1 × VGA Inputs; 1 × HDMI, 1 × HDBaseT output

£1395 (£1674.00 inc. VAT)
Availability: 3-5 days

SY Electronics MFS51-18G

The SY Electronics MFS51-18G is a powerful & flexible scaling 4K presentation switcher accepting Input resolutions up to 4K60 4:4:4 (HDMI 2.0 18G) and output at any resolutions up to 4K30 4:4:4.

Fast Switching Inputs - It offers fast switching between the 3 HDMI inputs,1 DisplayPort input,1 VGA input.

Auto / Manual Switching – This unit has three Auto Switching modes that can be set using either RS232 commands or from the Web GUI interface.

The three modes are as follows: Last Connected Mode, First Connect Mode, Priority Mode.

Mirrored Outputs – The HDMI and HDBaseT outputs both show the same source.

Scaling – A built in Scaler lets you scale up or down the video signals and will output to both the HDMI and HDBaseT outputs at 4K30 4:4:4. (The HDBaseT outputs will transmit 4K30 4:4:4 to 40m and 1080p to 70m – using a Slim70 Edge RX).

Output Aspect Ratio - Set the output to a choice of three screen ratios: 4:3, 16:9 or 16:10.

EDID Management – Select between pre-defined EDIDs or read from either output.

HDCP Mode control – Select between HDCP 1.4 or bypass mode.

Embed and De-embed Audio - This 18G HDMI 2.0 5x1 Presentation Switcher unit offers a stereo de-embedded audio output, and embedding of any external audio source onto any selected input.

Microphone Input - The dedicated Microphone Input channel also has switchable 48v phantom power, or it could be used as another Line level input by the setting the 3 position Switch.

Auto Ducking - Something else that is not often seen in other High End Presentation Switchers, but is present here on this unit, is a user selectable Auto Ducking function. In other words it contains a built-in Side Chain Compressor effect. What does this do With auto Ducking enabled, when someone speaks into the Microphone, then it will lower (or Duck) the Level of the Programme Audio from your other inputs.

Audio System Control - The MFS51-18G has a versatile and fully controllable audio routing and MIC mixing system with ‘Fade In/Out' options for the background audio inputs. A software Audio / Microphone Mixer is built-in. Physical buttons for Audio and Mic volume are situated on the front panel.

Control options - Controllable from front panel buttons, RS232, IR, Web GUI or via an external push button control.

OSD Menu – A Built-In On Screen Display Menu aids easy set-up.

Test Pattern Generator - The built-in menu also provides access to a single colour test pattern mode for White, Red, Green, Blue and Black. The test pattern can be used to confirm that a video signal can be seen on the HDMI and HDBaseT outputs.

It is suitable for a wide number of applications including classrooms, lecture halls and conference rooms.

SY Electronics MFS51-18G Key Features

  • 3 × HDMI, 1 × DisplayPort, 1 × VGA inputs
  • Supports up to HDMI 2.0b 18G inputs
  • Compliant up to HDCP 2.2
  • Input HDMI & DisplayPort resolutions up to 4K60 4:4:4
  • Fast switching HDMI output
  • Input VGA resolution up to 1920x1200 @60Hz
  • VGA input supports RBBHV, YPbPr and CVBS
  • Full up/down scaler to 4K30
  • HDBaseT output transmits up to 70m @ 1080p or 40m @ 4K30 4:4:4
  • Mirrored HDMI/HDBaseT
  • Automatic and Manual switching modes
  • Easy EDID Management
  • Extensive audio management
  • Controllable from front panel, contact closure, RS232, IR, Web GUI or external push button panel

SY Electronics MFS51-18G Downloads

Ethernet Control
RS-232 Control
IR Control
4K 4096*2160 and 3840*2160 Resolution
HDMI 2.0

SY Electronics MFS51-18G Specifications


Video Inputs 3 × HDMI 2.0b
1 × VGA
1 × DisplayPort 1.2a
Audio Inputs 1 × Microphone input via Phoenix connector inc. Phantom Power
Mic Ducking
Line Inputs 5 × Analogue Stereo L+R via Phoenix connectors
20Hz - 20kHz, 1.5Vrms max.
Embedded Audio Format LPCM 2 channel
Video Outputs 2 × Mirrored Outputs
1 × HDMI Fast switching HDMI output
1 × HDBaseT Output - Transmits Up To 70m @ 1080p Or 40m @ 4k/30 4
HDMI Output HDMI 1.4 10.2 Gbps 4k 30hz 4
HDBaseT Output 10.2 Gbps Bandwidth 4k 30hz 4
Audio Output 1 × Analogue pre out L+R

Video Resolutions

HDMI & DP Inputs All Vesa Resolutions To 3840×2160p @60hz 4:4:4
All PC resolutions to 1920×1200 @60Hz
VGA Input All PC resolutions to 1920 × 1200 @60Hz
HDMI/HDBT Output 4k2k 25/30 (4
HDCP Compatible with all versions up to 2.2
HDCP Output 1.4, 2.2, Cascade Mode


Scaler Full up/down scaler to 4K30
Test Tools Test Signal Generator With White, Red, Green, Blue and Black Colours
Control Front panel Buttons
Contact Closure
Control Connectors 1 × Built-in IR sensor
3-pin pluggable terminal block for RS232
1 × HDBaseT output with PoC


Power Supply 24V, 1.25A
Consumption 9W (unit only)
Operating Temperature -10 to +40°C (+14 to +104°F)
Operating Humidity 10 to 90 % RH (non-condensing)
Weight 1.25kg
Dimensions (WHD) 220 × 150 × 44mm
Case Material Aluminium chassis
In The Box 1 × MFS51-18G
1 × 6 way Pluggable terminal block (Phoenix)
8 × 3-way Phoenix connectors
1 × RS232 cable
1 × RGB to VGA cable
1 × IR receiver
2 × IR emitter
1 × set mounting brackets
1 × IR Handset
1 × 24v 1.25A external power supply
1 × User's manual

SY Electronics MFS51-18G Optional Cables

DescriptionLengthPriceInc. VAT
SY Electronics STEALTH-0.3 HDMI 2.0 Copper Cable (4K 60Hz 4:4:4 HDR) 0.3m £17 £20.40
SY Electronics STEALTH-0.5 HDMI 2.0 Copper Cable (4K 60Hz 4:4:4 HDR) 0.5m £19 £22.80
SY Electronics STEALTH-0.75 HDMI 2.0 Copper Cable (4K 60Hz 4:4:4 HDR) 0.8m £21 £25.20
SY Electronics STEALTH-1.0 HDMI 2.0 Copper Cable (4K 60Hz 4:4:4 HDR) 1.0m £25 £30.00
SY Electronics STEALTH-1.5 HDMI 2.0 Copper Cable (4K 60Hz 4:4:4 HDR) 1.5m £29 £34.80
SY Electronics STEALTH-2.0 HDMI 2.0 Copper Cable (4K 60Hz 4:4:4 HDR) 2.0m £32 £38.40
SY Electronics CENTAUR-7.5 HDMI 2.0 Hybrid Copper HDMI (4K, HDR, 10-bit colour) 7.5m £183 £219.60
SY Electronics CENTUAR-10 HDMI 2.0 Hybrid Copper HDMI (4K, HDR, 10-bit colour) 10.0m £204 £244.80
More Cables for the SY Electronics MFS51-18G