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Item #: TX704K
MSRP: $406.00

HDBaseT™ 4K UHD Transmitter (4K: 70m/230ft | 1080p: 100m/328ft)




For flagship HDBaseT Transmission performance, look no further than the TX-70-4K. Class A HDBaseT transmission means support for 4K UHD content; even HDR-10 @24Hz, up to 70m/230ft. 2-way PoH and EDID management completes this fully-loaded specification. 


  • Low profile chassis of 18mm / 0.7” for easier, more convenient installations in tight spaces.
  • Transmits discrete wide-band bidirectional IR control signal / routed serial commands (from compatible matrix) together within the HDMI signal over a single Cat5e/6
  • Robust Class A HDBaseT™ transmission technology for stable 4K/HD distribution and control resistant to electrostatic and environmental interference compared to conventional UTP transmission
  • Distribution of video (4K & 1080p), multichannel audio, bidirectional IR, POH power and 10/100 Ethernet over single Cat5e/6
  • Multichannel audio supports 7.1 DTS Master HD and Dolby True HD
  • HDMI v2.0 with HDCP 2.2
  • Full 3D compatibility up to 1080p
  • Switchable RS-232 selection for firmware update
  • Power options - additional phoenix port and threaded DC for use of both standard and locking DC power plugs
  • Visual LED indication for power supply, signal status to show display connection, HDCP in signal and Link between HDBaseT™ devices
  • Automatically adjusts feedback, equalization and amplification of signal
  • Energy efficient universal power supplies included
  • Mounting brackets and IR connections included




Sends HDMI signals of 4K UHD with HDR up to 70m/230ft and 1080p up to 100m/328ft with multi-channel audio, control, ethernet and PoH.



The TX-70-4K can either be powered by a PoH-compatible matrix or presentation switcher, or can itself deliver power to a receiver device such as the WyreStorm HDBaseT RX-70-4K or in cases where audio de-embed is required, the RX-70-4K-ARC.



Supports 2 methods of control pass-through. The TX-70-4K can handle both bi-directional IR and RS-232 when used as part of a compatible WyreStorm matrix or extender system.



Offering 2 methods of EDID communication, the TX-70-4K is as capable with invisible communication as it is with the 4K video that you can see. An installer can select EDID passthrough from the connected screen/projector, or decide to use one of the embedded options for maximum flexibility.



Audio and Video

Inputs 1x HDMI In: 19-pin HDMI type A female
Outputs  1x HDBaseT™ Out 8-pin RJ-45 female
Output Video Encoding  HDBaseT™ Class A
Audio Formats 2ch PCM | Up to DTS-X and Dolby Atmos
Video Resolutions (Max)  HDMI 
1920x1080p @60Hz 12bit (15m/50ft) | 16bit (7m/23ft)
3840x2160p @30Hz 4:4:4 8bit (7m/23ft) | @24Hz 4:2:0 HDR 10bit (3m/9.8ft)
4096x2160p @60Hz 8bit 4:2:0/4:4:4 (7m/23ft)
Using Cat6
1920x1080p @60Hz 12bit (100m/328ft) | 16bit (70m/230ft)
3840x2160p @30Hz 4:4:4 8bit (70m/230ft) | @24Hz 4:2:0 HDR 10bit (70m/230ft)
4096x2160p @60Hz 4:2:0 8bit (70m/230ft)
Using Cat6a/7
1920x1080p @60Hz 12bit (100m/328ft) | 16bit (100m/328ft)
3840x2160p @30Hz 4:4:4 8bit (100m/328ft) | @24Hz 4:2:0 HDR 10bit (100m/328ft))
4096x2160p @60Hz 4:2:0 2bit (100m/230ft)
Color Depth (Max) 1080p: 12bit |
Maximum Pixel Clock 297mHz

Communication and Control

HDMI HDMI | HDCP 2.2 | EDID | DVI/D supported with adapter (not included)
HDBaseT HDMI | HDCP 2.2 | EDID | 2-way PoH | Bidirectional IR, RS-232, and Ethernet
Ethernet 1x 8-pin RJ-45 female | 10/100 Mbps auto-negotiating | Bidirectional over HDBaseT™
IR 1x IR TX 3.5mm (1/8in) TS Mono | Bidirectional over HDBaseT™
1x IR RX 3.5mm (1/8in) TRS Stereo | Bidirectional over HDBaseT™
1x 3-pin Phoenix Connector | Bidirectional over HDBaseT


Power Supply Input: 100~240V AC 50/60Hz | Output: 12V DC 2A
PoH 48V 15.4W
Max Power Consumption 26.5W


Operating Temperature 32°F ~ 113°F (0°C ~ 45°C)
10% ~ 90%, non-condensing
Storage Temperature -4°F to ~ 158°F (-20°C ~ +70°C)
10% ~ 90%, non-condensing
Maximum BTU 90.42 BTU/hr

Dimensions & Weight

Rack Units/Wall Box <1U
Height 24.9mm/0.99in
Width 220mm/8.67in
Depth 89.9mm/3.54in
Weight 0.52kg/1.14lbs


Safety and Emission CE | FCC | RoHS
Accessories 1x TX-70-4K Transmitter 
1x 12V DC 2A Power Supply (US/UK/EU)
1x 2-pin Phoenix Connectors
1x 3-pin Phoenix Connectors
1x Wide-band IR Emitters
1x Wide-band IR Receivers (30-50KHz)
2x Mounting Brackets (1pr for TX and 1pr for RX)
1x Quickstart Guide


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