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ShopPortable Docking stationsStarTech.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
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
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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

£452.66

£543.19 inc. VAT

Low Stock(1)MPN: ST121HD20FXA2
🚚 Next-day delivery £4.95
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Key Features

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, Audio/RS232/IR Extender, HDMI Video Extender
Transmitter and Receiver Kit (ST121HD20FXA2)
Video/audio/infrared/network extender
HDMI
over fibre optic
fibre optic
up to 1 km

Product Overview

AI-generated summary

For £452.65 ex-VAT, this StarTech kit is only a “good buy” if you actually need to push a 4K HDMI signal over distance reliably. The headline advantage here is that fiber cuts through the usual HDMI gremlins—long cable runs, signal loss, and interference—so if you’re running displays across a warehouse, boardroom into an overflow space, or AV between buildings/corridors, it can save you a lot of tinkering. In practice, the value lands best when you’ve already confirmed your fiber terminations and your site design (single‑mode vs multi‑mode) is correct, because the tech itself is meant to be boringly dependable.

Why you might *not* buy it: the price-to-flexibility ratio is not great if you only need a short-ish run. Also, this kit sits in the “integrator” world—fiber optics aren’t hard, but they’re unforgiving, and you’ll want clean LC connections, correct mode selection, and a sane physical install. If your priority is simple port expansion (i.e., a docking station vibe), this isn’t that—nothing about it is portable or quick to reconfigure; it’s a fixed extender solution.

**Who should buy:** IT/AV teams or resellers supporting fixed installs where the display has to be far away and you need 4K plus control/audio integration. **Who shouldn’t:** anyone hoping for an easy, low-maintenance “plug it anywhere” HDMI extender without planning the fiber side properly.

Specifications

Features

TypeAV transmitter & receiver
Maximum resolution4096 x 2160 pixels
Maximum transfer distance1000 m
ChipsetSiFotonics SD1503/SD1513
High Dynamic Range (HDR) supportedY

Ports & interfaces

Connectivity technologyWired
HDMI in1
Number of HDMI outputs2
HDMI version2.1
Fiber optic connectorLC

Power

AC input voltage100 - 240 V
Operating voltage5 V
Input current0.35 A
Output current1 A
Power plug typeType M

Operational conditions

Operating temperature (T-T)0 - 40 °C
Storage temperature (T-T)-20 - 60 °C
Operating relative humidity (H-H)20 - 90 %

Weight & dimensions

Width68 mm
Depth134 mm
Height18 mm
Weight280 g

Packaging data

Package width200 mm
Package depth300 mm
Package height60 mm
Package weight1000 g

Packaging content

AC adapter includedY
Quick start guideY
IR blaster includedY
IR receiver includedY

Technical details

Sustainability complianceY
Compliance certificatesCE,RoHS

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