StarTech.com 4K HDMI over Fiber Extender Kit, 4K 60Hz up to 3300ft/1km (Single Mode) or 1000ft/300m (Multimode) LC Fiber Optic, HDR, HDCP, 3.5mm Audio/RS232/IR Extender, Transmitter and Receiver Kit

Manufacturer: Startech | Model: ST121HD20FXA2 | Product ID: 5097 | Warranty: 2 Years
£487.49 (inc. VAT)
Availability: 0 in stock

Product Technical Specification

Features
TypeAV transmitter & receiver
Maximum resolution4096 x 2160
Maximum transfer distance1000
ChipsetSiFotonics SD1503/SD1513
High Dynamic Range (HDR) supportedYes
High Dynamic Range (HDR) technologyHigh Dynamic Range 10 (HDR10)
Maximum refresh rate60
Fiber mode structureMulti-mode,Single-mode
Extended display identification data (EDID)Yes
Audio output channels7.1
Electrostatic Discharge (ESD) protectionYes
Electrostatic Discharge (ESD) protection8
Infrared (IR) frequency range20 - 60
LED indicatorsActivity,Power
Bandwidth18
HDCPYes
Baud rate115.2
HDCP version2.2
Product colourBlack
Ports & interfaces
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
Power
AC input voltage100 - 240
Operating voltage5
Input current0.35
Output current1
Power plug typeType M
Operational conditions
Operating temperature (T-T)0 - 40
Storage temperature (T-T)-20 - 60
Operating relative humidity (H-H)20 - 90
Weight & dimensions
Width68
Depth134
Height18
Weight280
Packaging data
Package width200
Package depth300
Package height60
Package weight1000
Packaging content
AC adapter includedYes
Quick start guideYes
IR blaster includedYes
IR receiver includedYes
Technical details
Sustainability complianceYes
Sustainability certificatesCE,RoHS
Logistics data
Master (outer) case width325
Master (outer) case length530
Master (outer) case height402
Products per master (outer) case20

Delivery Options

Economy Delivery
FREE
Economy Delivery

Economy Delivery (UK)

Estimated delivery date: Sun 07th Dec 2025 to Wed 10th Dec 2025
Fast & Tracked by Courier
£6.95
Fast & Tracked by Courier

Fast & Tracked by Courier (UK)

Estimated delivery date: Sat 06th Dec 2025 to Mon 08th Dec 2025
View all Delivery Options & International Rates
Extend an HDMI® audio and video signal over optical fiber at resolutions of up to 4K 60Hz with 7.1 channel audioThis HDMI over Fiber Extender Kit extends an Ultra HD (UHD) 4K 60Hz HDMI signal, with 7.1ch audio, up to 3300ft over Single Strand LC fiber cable. This converter kit includes both the transmitter and receiver for a complete end-to-end solution.Works with Single Mode or Multimode FiberThis HDMI extender works over Single Mode or Multimode fiber cabling, allowing the utilization of existing fiber infrastructure. The single strand optical fiber provides full-bandwidth video while being immune to Electro-Magnetic Interference (EMI), making it ideal for use in challenging environments.Fiber TypeSingle ModeMulti ModeSupported DistanceUp to 3300ft (1000m)Up to 1000ft (300m)Audio CapabilitiesAudio extraction functionality enables playback of the HDMI source audio via the 3.5mm audio output on the receiver unit. Simultaneous audio playback across both HDMI and 3.5mm outputs is supported, providing flexibility for a variety of audio setups.Hassle-Free InstallationThe point-to-point connection, using LC single strand fiber between the A/V transmitter and receiver, eliminates the need for IP configuration, drivers, or network equipment. The HDMI extension kit features a durable steel housing with built-in mounting brackets, allowing for a tidy and secure installation.The HDMI over Fiber kit features a local HDMI output and IR/serial extension for a convenient and versatile setup. Ideal for setups that include projectors with RS232 controls, or A/V equipment with IR remote controls. The enhanced EDID Copy functions ensure the correct display information is used during the setup process. LED indicators allow for status monitoring. 8kV air and 6kV contact Electrostatic Discharge (ESD) protection ensures the safety and longevity of the equipment.This product is backed for 2-years, including free lifetime 24/5 multi-lingual technical assistance.The StarTech.com Advantage
Features
TypeAV transmitter & receiver
Maximum resolution4096 x 2160
Maximum transfer distance1000
ChipsetSiFotonics SD1503/SD1513
High Dynamic Range (HDR) supportedYes
High Dynamic Range (HDR) technologyHigh Dynamic Range 10 (HDR10)
Maximum refresh rate60
Fiber mode structureMulti-mode,Single-mode
Extended display identification data (EDID)Yes
Audio output channels7.1
Electrostatic Discharge (ESD) protectionYes
Electrostatic Discharge (ESD) protection8
Infrared (IR) frequency range20 - 60
LED indicatorsActivity,Power
Bandwidth18
HDCPYes
Baud rate115.2
HDCP version2.2
Product colourBlack
Ports & interfaces
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
Power
AC input voltage100 - 240
Operating voltage5
Input current0.35
Output current1
Power plug typeType M
Operational conditions
Operating temperature (T-T)0 - 40
Storage temperature (T-T)-20 - 60
Operating relative humidity (H-H)20 - 90
Weight & dimensions
Width68
Depth134
Height18
Weight280
Packaging data
Package width200
Package depth300
Package height60
Package weight1000
Packaging content
AC adapter includedYes
Quick start guideYes
IR blaster includedYes
IR receiver includedYes
Technical details
Sustainability complianceYes
Sustainability certificatesCE,RoHS
Logistics data
Master (outer) case width325
Master (outer) case length530
Master (outer) case height402
Products per master (outer) case20

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We will despatch your order the very same day if we receive cleared payment by 12:00 pm Mon-Fri.

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Our available delivery options*

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Product Returns Note

Buykingston offers a very flexible and hassle free returns policy. If for whatever reason you are not happy with the item purchased you can return it to us within 12months for a refund (for unused and unopened items) or within 30 days on opened and used items for a refund. This applies to items purchased direct through Buykingston  only.

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For items opened and used and that are returned in a resellable condition.

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For items that remain sealed and unused.

Some items are excluded from our moneyback guarantee unless they have developed a fault. These include;

- Headphones
- Earphones
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What is your returns criteria?
On opened items 30 days from date of receipt or expected date of receipt on non tracked items.
On unopened items 365 days.

How do i go about returning my order?
Please contact us via our contact page with your order number where we will present you with an RMA number and returns label.

Do i need to contact you before returning my order?
Yes, to obtain an RMA number.

Does my item have to include its original packaging?
Yes for items that fall within our 30 day money back guarantee and our 365 day returns. Of course for faulty items we realise you may no longer have the packaging.

Who deals with the warranty on a faulty item?
We will. In some circumstances we may ask you to contact the manufacturer direct for assistance.

Please ensure you have read and comply in full with Section 11 & 13 of our terms and conditions which you can read here in full.