Alfatron SUK4T


Alfatron SUK4T

The ALF-SUK4T is an HDBaseT Splitter kit with a single HDMI input and four HDBaseT outputs and a local HDMI output. The HDMI output can be used to monitor local devices or cascade with an additional splitter. The ALF-SUK4T allows uncompressed 4K (max) HDMI, IR, and RS232 signals to be transmitted over a single CAT 6/7 cable. It supports transmission of 4K signals up to 328ft(100m) and 1080p signal up to 492ft(150m). If required, use the Local HDMI output to cascade the HDMI signal up to four times with an additional SUK4T. The ALF-SUK4T is also capable of bi-directional IR control, RS232 control, EDID management, and PoC.


  • Supports HDMI 2.0 video resolutions up to 4K@60Hz 4:4:4
  • Distribute a single UHD/4K HDMI signal to four HDBaseT outputs and one loop HDMI output
  • Supports cascade connection, distributes video signal to multiple video displays
  • Maximum transmission distance is up to 328ft(100m) for 4K, and 492ft(150m) for 1080p
  • Supports video resolution down-scaling, a 4K input can be automatically downgraded to 1080 output
  • Supports audio de-embedding
  • Each HDBaseT output supports IR pass-through
  • Supports RS232 and IR cascade control
  • Supports 24V PoC – the HDBaseT receiver can be powered via the HDBaseT splitter
  • Includes HDBaseT receivers


HDMI Compliance HDMI 2.0b
HDCP Compliance HDCP 2.2
Video Bandwidth 594MHz/18Gbps
Video Resolution Up to 4k2k@60Hz 4:4:4

Color Depth

8-bit,10-bit,12-bit(1080p@60Hz) 8-bit (4K2K@60Hz YUV4:4:4)

8-bit,10-bit,12-bit(4K2K@60Hz YCbCr 4:2:2/4:2:0)

Color Space RGB 4:4:4, YCbCr 4:4:4 / 4:2:2 / 4:2:0
HDR Support HDR, HDR10+, HLG, Dolby vision

HDMI Audio Formats

LPCM 2.0/2.1/5.1/6.1/7.1, Dolby Digital, Dolby TrueHD, Dolby Digital Plus(DD+), DTS-ES, DTS HD Master, DTS HD-HRA, DTS-X
Coaxial Audio Formats PCM2.0, Dolby Digital / Plus, DTS 2.0/5.1
Analog Audio Formats PCM 2.0CH
ESD Protection Human body model—±8kV (Air-gap discharge) &

±4kV (Contact discharge)

Input 1×HDMI Type A (19-pin female)


1×HDMI Type A (19-pin female) 4x HDBaseT OUT [RJ45]

1x Coaxial Audio OUT [RCA]

1x L/R Audio OUT [5-pin phoenix connector]



1×RS-232 (3-pin phoenix connector) 1x EDID DIP switch [5-pin]

1x IR IN [3.5mm Stereo Mini-jack] 1x IR OUT [3.5mm Stereo Mini-jack]

Housing Metal Enclosure
Silkscreen Color Black
Dimensions Transmitter: 220mm (W) × 130mm (D) × 40mm (H) Receiver: 140mm (W) × 65mm (D) × 18mm (H)
Weight Transmitter: 853g Receiver: 246g
Power Supply Input: AC100 – 240V 50/60Hz, Output: DC 24V/2.7A

(US/EU standards, CE/FCC/UL certified)

Power Consumption 35W
Operation Temperature 0°C ~ 40°C / 32°F ~ 104°F
Storage Temperature -20°C ~ 60°C / -4°F ~ 140°F
Relative Humidity 20~90% RH (non-condensing)


User Manual


Technical Sheet

Download Image


1) Q – What is the ALF-SUK4T?

A – The ALF-SUK4T is a single HDMI input to four HDBaseT splitter.

2) Q – Is there a local HDMI output?

A – Yes there is, it is labeled “loop out”.

3) Q – Does the unit support IR control via the receiver?

A – Yes, the unit does.

4) Q – Should there be indicator lights on the netwrok cable input?

A – Yes. The green light indicates that there is connection and the orange light indicates that there is data signal with HDCP.

5) Q – Can I connect audio to the unit?

A – Yes, there is COAX out to be connected to an amplifier and L/R audio out to connect to speakers.