HDMI, USB 2.0, Audio via Single Fiber Extender Transmitter. Transparent USB 2.0 Support


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Unit: HFX-UX-PRO-TX-S Transmitter
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UHD 4K60 HDMI Fiber Extender Transmitter with KM, USB 2.0, Serial, and Bidirectional Audio

 SmartAVI HFX-KM-S Diagram

HFX-UX-PRO-TX-S Features

  • Supports HDMI video up to 3840 x 2160 @ 60 Hz
  • Uncompressed Video
  • Supports EDID Emulation
  • Transparent USB 2.0 Extension
  • Separate USB KM Extension with Emulation
  • Supports Bidirectional Stereo Audio
  • Supports Single-Mode (2km) and Multimode Fiber 1000ft
  • Compatible with Windows, Mac and Linux Operating Systems

HFX-UX-PRO-TX-S Applications

  • Data Center Server Management
  • Remote Server Administration
  • Network Operations Control
  • IT Infrastructure Management
  • Lab and Test Environments
  • Broadcast and Media Control
  • Cloud Services Maintenance
  • High-Performance Computing Management
  • Security and Surveillance Centers

SmartAVI HFX-UX-PRO-TX-S Rear Ports

Data Sheet

User Manual


The HFX-UX-PRO revolutionizes high-definition signal extension by delivering UHD 4K60 (3840 x 2160) video, full USB 2.0, keyboard-mouse, serial, and bidirectional audio over significant distances up to 2 km (1.24 miles) via a single-mode fiber. This is achieved through an innovative single fiber cable connection, surpassing the limitations of traditional HDMI extenders that demand specialized dual fiber cables.

Marking a significant leap forward, the HFX-UX-PRO is the premier extender in its class to integrate 4K60 video resolution support, full USB 2.0, and comprehensive KVM functionality into a unified system. This system is tailored for UHD displays, ensuring a pristine, ultra-high-definition experience ideal for precision tasks.

Extend For Any Application In Any Environment

The HFX-UX-PRO enhances remote workstation management by extending keyboard and mouse signals, facilitating seamless and efficient workflow management. Its local output capability on both the transmitter and receiver ensures flexible installation and monitoring options. Moreover, this extender maintains continuous emulation at the transmission point, safeguarding against unintended disconnections or disruptions critical in operations demanding high reliability.

Featuring transparent USB 2.0 extension and SmartAVI Ultra Low Latency technology, the HFX-UX-PRO is engineered for immediate responsiveness and compatibility with various operating systems, including Windows, Mac, and Linux. Whether for extending control in data centers, facilitating high-quality video in broadcasting, or enabling collaborative environments in conference rooms, the HFX-UX-PRO stands as the optimal solution for extending HDMI and USB over long distances with unmatched clarity and performance.

SmartAVI HFX-UX-PRO-TX-S Technical Specifications

Format HDMI2.0
Video Resolution Resolution: UHD 3840 x 2160 @ 60Hz
Color Depth: 24-bit color depth
Video Bandwidth Single-link 340 MHz (10.2 Gbps)
Input Interface (TX) (1) HDMI 19-pins (female)
(1) HDMI 19-pins (female) (LOOP)
Output Interface (RX) (1) HDMI 19-pins (female)
(1) HDMI 19-pins (female) (LOOP)
Max Output Distance Up to 10ft
Equalization Automatic
Input TMDS Signal 1.2 Volts [peak-to-peak]
Input DDC Signal 5 Volts [peak-to-peak, TTL]
Data Rate 1.65 Gbps per color
Format Integrated HDMI Audio / Bidirectional Audio
Input Interface Integrated HDMI / 3.5mm Bidirectional Audio
Output Interface Integrated HDMI / 3.5mm Bidirectional Audio
Input Interface (TX) (1) USB Type B
Output Interface (RX) (2) USB 1.1 Type A for KM Devices;
(4) USB 2.0 Type A Transparent
Keyboard and mouse Keyboard and mouse emulation
Fiber Interface & Type Single-Mode LC-LC Fiber
Cable Requirements Single LC Fiber
Maximum Length Single mode: 2 km (1.2 miles)
Multi mode: 300 m (1000 feet)
Power 100-240 VAC/ 12VDC @ 3A/15W
Dimensions 9.5″ W x 1.7″ H x 8.6″ D
Weight 3.6 lb (1.8 lbs per unit)
Approvals UL, CE, ROHS Compliant
Environmental Operating Temperature +32 to +104°F (0 to +40°C)
Environmental Operating Humidity 20% to 80% (non condensing)
Storage Temperature -4 to 140°F (-20 to +60°C)
Storage Humidity Up to 95% (No Condensation)
Compliance EMC FCC (Class A), CE (Class A), ICES-003
Environmental Compliance RoHS2 (CE)
Support Warranty 1-year