The ALF-SUK4T is an 18Gbps HDMI 1×4 HDBaseT Splitter. The ALF-SUK4T distributes a single source signal to four displays and supports video resolution up to 4K@60Hz 4:4:4. It is designed with an HDMI loop output and four HDBaseT outputs. The HDMI signal transmission distance could be extended up to 100m (328ft) at a resolution of 4K@60Hz, or 150m (492ft) at 1080P@60Hz via a single CAT 6/7 cable. The product supports IR and RS-232 signal pass-through, as well as an audio extraction function and advanced EDID management.


  • HDMI 2.0, HDCP 2.2 and HDCP compliant
  • Supports 18Gbps video bandwidth
  • Supports video resolution up to 4K@60Hz 4:4:4
  • Supports HDR, HDR10+, HLG and Dolby vision
  • Supports up to 7.1CH HD audio pass-through
  • Supports digital and analogue audio de-embedded output
  • Extends the signal transmission distance up to 100m (328ft) at a resolution of 4K@60Hz, and 150m (492ft) at 1080P@60Hz via a single CAT 6/7 cable
  • Supports an HDMI input, an HDMI loop output, and four HDBaseT outputs.
  • IR and RS-232 routed to HDBaseT output
  • Advanced EDID management
  • Supports one-way POC function (only from transmitter to receiver)


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)

Hi-Res Images Here


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.