Alfatron ALF-WUK3A


Alfatron ALF-WUK3A

The ALF-WUK3A is a Full 4Kx2K@60Hz 4:4:4 HDMI Auto Switcher with 3 HDMI inputs and 1 HDMI Output. It is controllable by selecting any of the inputs on the front panel or via the IR Remote. It is compliant with HDMI 2.0 and HDCP 2.2. The HDMI Switcher can transmit an uncompressed 4K (at max) signal. Comprehensive audio capacities including PCM, DTS, and DTS-HD. It also provides an ARC audio output socket to transfer ARC audio to ARC speakers and amplifiers.


Product Features

  • Supports Video resolutions up to 4Kx2K@60Hz 4:4:4
  • 1080P Supports HDR 10
  • High bandwidth: 18Gbps
  • Compliant with HDMI 2.0 and capable of transmitting 4K signal
  • HDCP 2.2 compliant, supports auto-detecting for input HDCP compliant status
  • Supports EDID management, including 5 embedded EDID data, 10 (max) user-definable EDID data, and EDID data automatically captured and copied
  • Supports CEC pass-through 3 HDMI inputs Supports Hot-Plug Intuitive indicators for power, switch mode, I/O connection status, and audio output signal Convenient Online firmware update


Video Input 
Input  (3) HDMI 
Input Connector  (4) Female type-A HDMI 
HDMI Input Resolution  Up to 4Kx2K@60Hz 4:4:4 
Video Output 
Output  (1) HDMI 
Output Connector  (1) Female type-A HDMI 
HDMI Output Resolution  Up to 4Kx2K@60Hz 4:4:4 
HDMI Standard  2.0 
HDCP Version  2.2 
HDR  Supported 
Dolby Vision  Supported 
CEC Pass-through  Supported 
HDCP Pass-through  Supported 
EDID Pass-through  Supported 
Hot-plug  Supported 


HDMI Audio Format 

Supports LPCM 7.1 audio, DTS:X™, and DTS-HD® Master Audio™ pass- through. 


HDMI Cable Length 

From source to display device: 

1080p@60Hz ≤ 20m, 4K@60Hz(4:2:0) ≤ 10m, 4K@60Hz(4:4:4) ≤ 4m 

Bandwidth  18Gbps 
Operation Temperature  -5~ +55 
Storage Temperature  -25~ +70 
Relative Humidity  10%-90% 
Power Supply  Powered by HDMI input source
Power Consumption  0.1W (Max) 
Dimension (W*H*D)  105mm x 55mm x 18mm 
Net Weight  150g 

Download Image

Download Image



Technical Sheet

User Manual



1) Q – What is the ALF-WUK3A?

    A – The unit is a 3 x 1 HDMI switcher

2) Q – What is the maximum resolution the device can handle?

    A – It supports full 4K x 2K at 60fps 4:4:4

3) Q – How is the device powered? There is no power input   

    A – The unit takes power from the HDMI input source

4) Q – What audio formats are supported by the device?

     A – The HDMI audio format supported is Supports LPCM 7.1 audio, DTS:X™, and DTS-HD® Master Audio™ pass- through.

5) Q – What is the maximum HDMI cable length that can be used?

    A – For 1080p@60Hz ≤ 20m, 4K@60Hz(4:2:0) ≤ 10m, 4K@60Hz(4:4:4) ≤ 4m