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StarTech.com 4K 60Hz HDMI Fiber Extender 1000m LC ST121HD20FXA2
StarTech.com·MPN: ST121HD20FXA2

StarTech.com 4K 60Hz HDMI Fiber Extender 1000m LC ST121HD20FXA2

The StarTech.com ST121HD20FXA2 4K 60Hz HDMI Fiber Extender kit reliably transmits Ultra HD video and 7.1 channel audio up to 1000 meters over a single-strand LC fiber cable, ensuring pristine signal integrity across large facilities.

  • Extended Reach: Transmits 4K 60Hz HDMI signals up to 1000m over LC fiber, enabling video distribution across large campuses or multiple floors without signal degradation.
  • High Fidelity A/V: Supports 4K 60Hz resolution with HDR10 and 7.1 channel audio, delivering crystal-clear visuals and immersive sound for critical presentations and digital signage.
  • Integrated Control: Extends RS-232 and IR signals over the same fiber link, allowing remote control of source devices and displays from a centralized location.
  • Robust Protection: Features 8 kV ESD protection and HDCP 2.2 compliance, safeguarding equipment from electrical surges and ensuring secure content transmission.
$613.19
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Manufacturer Warranty Included

Product Overview

The StarTech.com ST121HD20FXA2 is a purpose-built 4K 60Hz HDMI fiber extender kit, capable of transmitting Ultra HD video and 7.1 channel audio up to 1000 meters over a single-strand LC fiber cable, supporting both single-mode and multi-mode fiber infrastructure.

Engineered for enterprise environments, this extender kit includes both a transmitter and receiver, ensuring end-to-end signal integrity with HDCP 2.2 and HDR10 support, crucial for protected commercial content and vibrant visual displays.

  • Core Functionality: Extends 4K 60Hz HDMI video and 7.1 channel audio over 1000 meters of LC fiber, enabling high-resolution displays in distant locations without signal loss.
  • Versatile Fiber Support: Compatible with both single-mode and multi-mode fiber cabling, allowing for flexible deployment within existing or new network infrastructures.
  • Remote Device Control: Integrates RS-232 and IR extension, providing centralized control over source equipment and remote displays, reducing the need for on-site adjustments.
  • Enhanced Visuals: Supports High Dynamic Range 10 (HDR10) and 18 Gbit/s bandwidth, ensuring vibrant colors and sharp contrast for impactful visual communication.
  • Operational Value: Features 8 kV ESD protection and robust construction, minimizing downtime from electrical surges and extending the operational lifespan of the equipment.

This fiber extender provides a reliable and high-performance solution for businesses requiring extended 4K HDMI distribution with integrated control capabilities.

Technical Specifications

1Performance & Business Impact
Maximum Resolution4096 x 2160 pixels at 60 Hz
Maximum Transfer Distance1000 m
Bandwidth18 Gbit/s
HDR SupportHigh Dynamic Range 10 (HDR10)
Audio Channels7.1 channels
ESD Protection8 kV
HDCP Version2.2
2Connectivity & I/O
HDMI Input1
HDMI Outputs2
Fiber Optic ConnectorLC
Serial InterfaceRS-232
IR Input/Output2 x Input, 2 x Output
USB Connector TypeMicro-USB B
3Physical & Environmental
Dimensions (W x D x H)68 mm x 134 mm x 18 mm / 2.68 in x 5.28 in x 0.71 in
Weight280 g / 0.62 lbs
Product ColorBlack
Operating Temperature0 - 40 °C (32 - 104 °F)
Operating Humidity20 - 90% (non-condensing)
4Lifecycle, Warranty & Compliance
Warranty2-Year Limited Warranty
In-Box ContentsAC adapter, Quick start guide, IR blaster, IR receiver
Compliance CertificationsCE, RoHS
AC Input Voltage100 - 240 V
Power Plug TypeType M

Full Specifications

Manufacturer Data
Ports & interfaces15
Connectivity technologyWired
HDMI in1
Number of HDMI outputs2
HDMI version2.1
Fiber optic connectorLC
Fiber ports quantity2
USB ports quantity2
USB connector typeMicro-USB B
Serial ports quantity2
Serial interface typeRS-232
Remote (IR) input2
Remote (IR) output2
Line outputs (RCA)1
Line-inYes
DC-in jackYes
Power5
AC input voltage100 - 240 V
Operating voltage5 V
Input current0.35 A
Output current1 A
Power plug typeType M
Features19
TypeAV transmitter & receiver
Maximum resolution4096 x 2160 pixels
Maximum transfer distance1000 m
ChipsetSiFotonics SD1503/SD1513
High Dynamic Range (HDR) supportedYes
High Dynamic Range (HDR) technologyHigh Dynamic Range 10 (HDR10)
Maximum refresh rate60 Hz
Fiber mode structureMulti-mode, Single-mode
Extended display identification data (EDID)Yes
Audio output channels7.1 channels
Electrostatic Discharge (ESD) protectionYes
Electrostatic Discharge (ESD) protection8 kV
Infrared (IR) frequency range20 - 60 kHz
LED indicatorsActivity, Power
Bandwidth18 Gbit/s
HDCPYes
Baud rate115.2 Kbit/s
HDCP version2.2
Product colourBlack
Weight & dimensions4
Width68 mm
Depth134 mm
Height18 mm
Weight280 g
Packaging content4
AC adapter includedYes
Quick start guideYes
IR blaster includedYes
IR receiver includedYes
Operational conditions1
Operating temperature (T-T)0 - 40 °C
Packaging data1
Package width200 mm
Technical details1
Sustainability complianceYes
Logistics data1
Master (outer) case width325 mm
Downloads2
Product Datasheet96 KB
Download
User Manual264 KB
Download

What This Solves

Long-Distance 4K Digital Signage

In large retail spaces, corporate campuses, or public venues, maintaining crisp 4K digital signage over hundreds of meters is challenging with traditional copper cabling. This extender reliably transmits 4K 60Hz video up to 1000m over fiber, ensuring vibrant, high-impact visual communication across expansive areas.

Retail chains, corporate headquarters, convention centers, public transportation hubs

Centralized A/V Control for Conference Rooms

Managing multiple conference room displays and source devices from a central IT hub often requires complex wiring and on-site troubleshooting. This solution extends HDMI, RS-232, and IR signals over a single fiber, enabling remote control of A/V equipment and simplifying meeting room management.

Mid-market offices, legal firms, financial institutions, educational institutions

High-Resolution Command Center Displays

Command and control centers demand flawless, real-time 4K video feeds from various sources to large display walls, often requiring signals to travel significant distances. The extender delivers uncompressed 4K 60Hz video with HDR10 support, ensuring critical operational data is displayed with absolute clarity and fidelity.

Network operations centers, security monitoring facilities, emergency services, industrial control rooms

Key Features

Maximum transfer distance: 1000 m

Extends 4K 60Hz HDMI signals over long distances, enabling high-resolution video distribution across large facilities without signal degradation.

Maximum resolution: 4096 x 2160 pixels at 60 Hz

Delivers pristine Ultra HD video quality, ensuring sharp, detailed images for critical presentations, digital signage, or medical imaging applications.

High Dynamic Range (HDR) 10 supported

Provides enhanced contrast and color accuracy, making visual content more vibrant and impactful for viewers.

RS-232 and IR extension

Allows remote control of source devices and displays over the same fiber cable, simplifying management and reducing the need for on-site intervention.

Electrostatic Discharge (ESD) protection: 8 kV

Safeguards connected equipment from electrical surges, enhancing system reliability and extending hardware lifespan in demanding environments.

Industry Applications

Government & Public Sector

Deploys for command centers, public information displays, and secure video distribution across large government facilities, leveraging fiber's inherent security and long reach.

Healthcare & Life Sciences

Utilizes for medical imaging displays, operating room monitors, and patient information systems where high-resolution video needs to be extended across large hospital campuses.

Manufacturing & Industrial

Implements for control room monitoring, factory floor displays, and safety signage, benefiting from fiber's immunity to electromagnetic interference in industrial environments.

Retail & Hospitality

Employs for large-scale digital signage, lobby displays, and conference room presentations in multi-story hotels or expansive retail centers, ensuring consistent 4K visual quality.

Frequently Asked Questions

What types of fiber optic cables are compatible with this extender?

This HDMI fiber extender is compatible with both single-mode and multi-mode LC fiber optic cabling, offering flexibility for integration into various existing or new fiber infrastructures.

Can this extender transmit control signals like RS-232 and IR along with the HDMI video?

Yes, the StarTech.com ST121HD20FXA2 is designed to extend RS-232 serial and Infrared (IR) control signals over the same single-strand LC fiber cable, allowing for remote management of connected devices.

Does this extender support content protection for commercial media?

Yes, this extender supports HDCP 2.2, ensuring compliance with content protection standards required for transmitting protected commercial video and audio signals.

What is the maximum bandwidth supported by this HDMI fiber extender?

The extender supports a bandwidth of 18 Gbit/s, which is sufficient to transmit uncompressed 4K 60Hz video with HDR10 and 7.1 channel audio without any loss in quality.

Warranty & Returns

Manufacturer Warranty

2 Years

Warranty is provided directly by the manufacturer and covers defects in materials and workmanship under normal use.

Return Policy

Returns subject to manufacturer approval

Hardware returns are governed by the manufacturer's return policy. Some products are non-returnable or subject to restocking fees. Defective items are handled under the manufacturer warranty. Contact Zent Networks before initiating any return.

$613.19