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Item #: EX354K
MSRP: $599.00

WyreStorm HDBaseT 4K Extender Set with 2-Way IR, RS232 and PoH (4K to 35m/114ft - 1080p to 70m/230ft)

Pushing technology and design to the limit, the EX-35-4K extender set offers HDMI over HDBaseT distribution of UltraHD 4K and 1080p video, audio, two-way IR and RS232 serial control, remote power over medium/long distances within an incredibly low profile chassis of just 15mm for a greatly reduced form factor behind the screen, with even the slimmest of wall plates, to make extension of 4K or HD transmissions a dream. 

  • Transmits UltraHD 4K to 35m/115ft and 1080p content to 70m/230ft
  • Super Low profile (15mm) housing and PoH for discreet placement behind displays
  • Bidirectional IR and RS232, internal handling of EDID, CEC pass-through
  • HDCP 2.2 compliant



Featuring powerful yet cost-effective Class B HDBaseT technology for projects that demand all the benefits of HDBaseT transmission, but maybe do not require full Class A specification, the EX-35-4K supports 70m/230ft transmissions of 1080p@60Hz and 36bit deep color, HD audio, 100w remote power from transmitter to receiver and bidirectional control via IR and RS232 all along a single Cat5e/6 cable to display zone devices. 

UltraHD 4K transmissions of 2160p@30Hz/24bit are supported up to 35m/115ft - both broadcast/consumer 3840 (UHD) and commercial 4096 (DCI) - with chroma sub-sampling rates of 4:2:2 offering the optimum refresh rate to colour palette ratio required to transmit high quality and reliable 4K signals within the bandwidth specifications of HDMI 1.4v cable standards. 

RS232 serial control support is included, with compatibility with leading control systems and switchable RS232 selection on both transmitter and receiver for firmware updates or control and 12v power connectivity is offered via threaded DC power port for standard and locking DC power plugs. 

Transmission and operation status is illustrated by panel LED indicators for power supply, signal status for established display connection, HDCP presence in signal, and HDBaseT link indicator that allow the strength of transmission between source and display to be confirmed and to help identify potential issues within the installation.

WyreStorm UHD 4K HDBaseT solutions offer the features, flexibility and compatibility demanded by modern integrations today while future-proofing for tomorrow, combined with an ease of use and cost-efficiency where reliable distribution and control of digital content over distance is required whether in a residential or commercial setting. 



  • 4K extender set capable of HDMI transmissions of UHD and 1080p HD content over distance using single cable Cat5e/6 cable* 

   -  35m/115ft: 3840 (UHD) and 4096 (DCI) 2160p 4K video@30Hz with chroma colour subsampling 4:2:2

   -  70m/230ft: 1920x1080p HD video@60Hz

  • Full UHD 4K transmission support within the 10.2Gbs spectrum of HDMI 1.4 standard
  • HDCP 2.2 compliant 
  • Transmits discreet wide-band two-way IR control signal / serial control commands together within HDMI signal over a single Cat5e/6
  • 24bit True Colour (4K), 36bit Deep Colour (HD)
  • Low profile chassis of 15mm / 0.6” for easier, more convenient installations behind screens at display zones. 
  • One-way PoH (Power over HDBaseT) locally powered 12v DC transmitter passes power along the Cat5e/6 to remotely power the receiver - no mains power required at display zones 
  • Multichannel HD audio supports 7.1 DTS Master HD and Dolby True HD 
  • Robust Class B HDBaseT transmission technology for stable distribution and control resistant to electrostatic and environmental interference compared to conventional UTP transmission. 
  • Supports all high definition resolutions: 4K@2160p (3840 UHD & 4096 DCI) HD@1080p, 1080i, 720p with screen refresh rates support of 24Hz, 30Hz (4K), 50Hz and 60Hz (HD)
  • Full 3D compatibility up to 1080p - frame packing/sequential (Blu-ray) and interlaced stereoscopic (satellite/ cable broadcasts) 
  • Switchable RS232 function mode on transmitter and receiver for firmware update 

Note: Serial control via RS232 only supported when connected to a compatible HDBaseT transmission device with routable RS232. (Check website for compatibility)

  • Receivers cascadable up to 7 times within a single output zone using another EX-35-4K transmitter or compatible HDBaseT transmission device. 
  • Threaded bushings on allow use of both standard and locking 12v DC power plugs 
  • Visual LED indication for power supply to units, signal status to show established display connection, HDCP presence in signal and HDBaseT link between devices
  • Cable termination follows IEEE-568B standards 
  • Automatically adjusts feedback, equalization and amplification of signal for easy installation 
  • Energy efficient universal power supply included 

*Recommended transmission conditions - cable run within specified distance range of product, no electrical interference, the use of straight cable runs with no bends or kinks and no patch panels or wall outlets used. Please be advised that the presence of any of these factors in your installation may compromise bandwidth and signal strength. 



109mm × 15mm × 64mm / 4.3” x 0.59” x 2.5” (depth excludes connectors)
170g/5.99oz (each unit)
32°F to 95°F (0°C to 35°C) 10% to 90%, non-condensing
-4°F to 140°F (-20°C to 70°C) 10% to 90%, non-condensing
0.5 - 1.2V p-p
5 volts p-p (TTL)
2160p@30Hz/24bit True Color- 1080p@60Hz/36bit Deep Color
4K: 35m (115ft) / 1080p: 70m (230ft)
480i, 576i, 480p, 576p, 720p, 1080i, 1920 x 1080p up to 60Hz 3840/4096 x 2160 up to 30Hz
480i, 576i, 480p, 576p, 720p, 1080i, 1920 x 1080p up to 60Hz 3840/4096 x 2160 up to 30Hz
Multichannel digital audio supporting DTS Master HD, Dolby True HD (mirrors source to output display)
12V DC 2A (for each power connector)
≤11W (Pair)

Input: Transmitter: 1 x HDMI IN  -  Receiver: 1 x HDBaseT 

Input Signal Type: Transmitter HDMI 1.4a with 4K  -  Receiver: HDBaseT 

Output: Transmitter: 1 x HDBaseT OUT Receiver: 1 x HDMI Out

Output Signal Type: Transmitter: HDBaseT Receiver: HDMI 1.4a with 4K

Video Impedance: 100Ω

Maximum Pixel Clock: 297MHz

3D: Frame packing/sequential (Blu-ray), Interlaced stereoscopic (satellite/cable broadcasts)

ESD Protection: ±8 kV (Air-gap discharge) ±4 kV (Contact discharge)

Surge Protection: IEC 61000-4-4 (EFT) 40A (5/50ns) IEC 61000-4-5 (Lightning) 25A (8/20μs)

Electrical Fast Transient/Burst: Data communication cord:1 kV Power cord : 2 kV

Certification: CE, FCC, RoHS, HDBaseT




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