ALF-WU4K HUB-8K(Coming Soon)


The ALF-WU4 HUB-8K is an HDM2.1 conference switching hub, with 4 inputs, one output & USB KVM Hub. It supports up to 8K resolutions and USB3.2 with 10G bandwidth, also the USB2.0 port can support the hot key function, versatile control via TCP/IP (GUI), RS232 or GPIO with 3rd party control system.

Product Features

  • HDMI2.1, HDCP2.3 compliant,
  • 48Gbps Bandwidth (FRL 5), up to 8K 60Hz 4:2:0/8K 30Hz 4:4:4/4k 120Hz
  • Fast switching between the inputs ( Within 3 seconds)
  • 2 KVM switching at 10G bps
  • KVM auto-switching based on TMDS/5V detection
  • KVM supports hot-key control (only for the 0 port)
  • Must have Ethernet over all the HOST USB & Must have Ethernet ON/OFF control via a switcher
  • De-embedded audio with digital and analog
  • EDID & HDCP management via DIP switch
  • Supports Auto switching for the inputs
  • TCP/IP (GUl) & RS232, buttons & GPIO control
  • Support CEC control
  • Alfatron or Josawa unique RS232 codes and GUI design
  • TCP/IP is to allow the FW upgrade to be done over the network & to be discoverable via third part management system
  • Including 24V 2A PSU


Video Resolution Up to 8K 60Hz 4:2:0/8K 30Hz 4:4:4/4k 120Hz
HDR Formats 420, 422, 444 (10 AND 12 DEEP COLOR) HDR10, HDR10+, DOLBY VISION, HLG
Color Space YUV (Component), RGB

(CSC: Rec. 601, Rec. 709, BT2020, DCI, P3 D6500)

Chroma Subsampling 4:4:4, 4:2:2, 4:2:0 Supported
Deep Color Up to 16 bit
HDMI Audio PCM 2.0 Ch, LPCM 5.1 & 7.1, Dolby Digital, DTS 5.1, Dolby Digital Plus, Dolby TrueHD, DTS-HD Master Audio, DTS-X, Dolby Atmos
Optical LPCM up to 5.1 96KHz 24 Bit, Dolby Digital 5.1, DTS HiRes Audio
Analog (Balanced) PCM 2.0 CH
USB supports USB3.2, bandwidth up to 10G bps


HDCP Management

Input: HDCP 2.3 and backward compatible
Output: Manageable (Default follow the display).

For example: it will output HDCP 1.4 when source is HDCP 2.3 or 2.2 when connect to HDCP 1.4 display. It will turn off HDCP if display does not support HDCP.

Can turn off HDCP by DIP switch compulsory


Provided when project starts
GUI Provided when project starts
USB The firmware can be updated





Coming Soon!