HDMI 2.0 KVM Fiber Receiver


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Unit: HFX-KM-RX-S Receiver
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About SmartAVI HFX-KM-RX-S

HDMI 2.0 KVM Fiber Receiver

 SmartAVI HFX-KM-S Diagram

HFX-KM-RX-S Features

  • Supports resolutions up to 4K Ultra HD (@60 Hz)
  • USB Keyboard and Mouse extension and emulation
  • External power adapter for transmitter and receiver unit
  • Supports Stereo Sound
  • Compatible with Windows, Mac and Linux Operating Systems
  • RS232 Serial Extension
  • SmartAVI Ultra Low Latency

HFX-KM-RX-S Applications

  • Digital Signage
  • Security
  • PC Networking
  • Conference Center Systems
  • Point of Sale
  • Camera Surveillance
  • Video Phone
  • Control Room Systems
  • Recording Studio
  • PC KVM Extension

SmartAVI HFX-KM-RX-S Rear Ports


User Manual


The HFX-KM is a Single Head HDMI 2.0 (3840 x 2160), USB keyboard-mouse and stereo audio extender, sending signals up to 2 km (1.2 miles) away over a single conventional and inexpensive single fiber cable. This new technology is superior to older HDMI extenders that require a special single fiber shielded cable to go a short distance.

The HFX-KM is the leading extender on the market to feature 3840 x 2160 @ 60 Hz, USB and full KVM extension and emulation on one cohesive system and is optimized for UHD 4K@60Hz monitors with crystal-clear picture; excellent for detail driven work.

The HFX-KM extends keyboard-mouse signals for remote workflow management and offers uninterrupted emulation from the user's transmitter unit. This uninterrupted emulation prevents accidental disconnection or deactivation issues during mission critical operations. The HFX-KM's unparalleled KVM extension technology makes it the perfect solution for extending servers in applications ranging from data processing to interactive conferencing.


When managing content in high-security environments, creating a safe and secure control room is critical. In the vast majority of such applications, that requires routing signals from a server room, where the computers are safely stored, to a control room, where approved personnel access the data and video feeds. Whether that's in a security surveillance center, an operations control room or some other security-related environment, being able to extend video, audio and USB is a must.
The HFX-KM provides system architects with the flexibility they need to create secure environments for servers as well as the end users accessing those computers.

SmartAVI HFX-KM-RX-S Technical Specifications

Format HDMI2.0
Video Resolution Resolution: high definition 3840 x 2160
Color Depth: 24-bit color depth
Latency: less than 1 ms
Video Bandwidth Single-link 340 MHz (10.2 Gbps)
Input Interface (1) HDMI 19-pins (female)
(1) HDMI 19-pins (female) (local)
Output Interface (1) HDMI 19-pins (female)
(1) HDMI 19-pins (female) (local)
Max Output Distance Up to 20f
Equalization Automatic
Input TMDS Signal 1.2 Volts [peak-to-peak]
Input DDC Signal 5 Volts [peak-to-peak, TTL]
Data Rate Supports bandwidths up to 18 Gbps
Format Stereo
Input Interface 3.5 mm Jack Socket (female)
Output Interface 3.5 mm Jack Socket (female)
Input Interface (TX) (1) USB Type B
Output Interface (RX) (2) USB 1.1 Type A for KM Devices
Input Interface (TX) (1) RS232 Serial, 3-pin pheonix connector
Output Interface (RX) (1) RS232 Serial, 3-pin pheonix connector
Extension Type Fiber (LC-LC Single)
Cable Requirements Single Fiber
Maximum Length Single mode: 2 km (1.2 miles)
Power 100-240 VAC/ 12VDC @ 1A/15W
Dimensions 6.4" W x 1.1" H x 3.9" D
Weight 2.65 lb (1.43 lbs per unit)
Approvals UL, CE, ROHS Compliant
Operating Temperature +32 to +104°F (0 to +40°C)
Storage Temperature -4 to 140°F (-20 to +60°C)
Operating Humidity 20% to 80% (non condensing)
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