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Two small black boxes with HDMI ports and fiber connectors side by side

Lenkeng Technology Co,. Ltd

Lenkeng Technology Co,. Ltd 4K@60Hz HDMI 2.0 Fiber Optic Extender 20KM Transmitter Receiver Set

SKU CH-XQT9-8W4P6

Extends HDMI 2.0 4K at 60 Hz up to 20 kilometres over single-mode fibre with 3.5 mm stereo audio, RS-232 and 4K-to-1080 downscaling

  • Product typeA/V Converter
  • Extends 4K HDMI signals up to 20 km over single-mode fiber
  • Delivers 3840×2160 at 60 Hz with 4:2:0 chroma subsampling
  • Includes 3.5 mm stereo audio output for separate sound routing
  • Provides RS-232 serial port for remote device control
  • Plug-and-play hardware design requires no software installation

20 km HDMI 2.0 fibre extender

This transmitter and receiver set extends HDMI 2.0 signals up to 20 km over single-mode fibre. It supports 4K at 60 Hz with 4:2:0 chroma subsampling. Independent 3.5 mm stereo audio and RS-232 serial ports are included. The pure hardware design requires no driver installation.

Single-mode LC fibre with SFP module

The kit uses a single-fibre bidirectional link with an LC connector and a 1.25 Gbps SFP module compliant with SFP MSA and SFF-8472. Wavelengths of 1310 nm and 1550 nm carry video, audio and control data over one strand. Maximum reach is 20 km or 12.4 miles.

Installers needing long-range 4K distribution

Suits security monitoring, inter-building signage and large-venue displays where copper cable cannot reach. Buyers who require 4:4:4 colour sampling at 60 Hz should look elsewhere. Users needing multi-fibre redundancy or HDMI 2.1 bandwidth will need a different solution.

How it compares

Measured against everything we stock in AV Accessories & Components, at today’s prices. Recalculated every night.

Price $181.99
Pricier than about 85% of the 3,838 comparable items (median $41.99).

Specifications

Product
Product typeA/V Converter

Questions about this item

What does the 4K@60Hz rating mean when the extender is connected to a display?

The extender passes 3840×2160 resolution at 60 frames per second with 4:2:0 chroma subsampling, so the connected monitor receives full 4K motion detail at standard refresh rates.

How does the SFP MSA and SFF-8472 interface limit the link in practice?

The 1.25Gbps SFP optical module caps the fibre link to that line rate, which is sufficient for 4K@60Hz 4:2:0 and the return RS-232 channel but does not carry higher-bandwidth formats such as 4:4:4 or HDR.

What fibre connector and cable type are required to mount the transmitter and receiver?

Each unit uses a single-mode single-core SC interface; you need a matching SC-terminated single-mode patch cord at both ends to complete the 20 km link.

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