The StarTech.com ST121HD20FXA2 4K60 HDMI over Fiber Extender Kit is an extender. This guide covers price, what's in the box and how it compares.

Quick facts
| Spec | Detail |
|---|---|
| Price | $637 |
| Part number | ST121HD20FXA2 |
| Warranty | 2 years |
| Max distance | 1 km (3,300 ft) single mode; 300 m (1,000 ft) multimode |
| Max resolution | 4096 x 2160 @ 60 Hz |
| HDR | HDR10 |
| Bandwidth | 18 Gbps |
| Standards | HDMI 2.1 TMDS, HDCP 2.2 |
What is the ST121HD20FXA2 4K60 HDMI over Fiber Extender Kit?
The ST121HD20FXA2 sends 4K60 HDMI with HDR over fiber: up to 1 km on single-mode or 300 m on multimode. It is for runs that are too long for HDBaseT, or that pass through areas with heavy electrical noise.
It also extends RS-232, IR and analog audio. Only the pre-installed SFP modules are supported, and HDMI CEC does not pass.
How much does the ST121HD20FXA2 4K60 HDMI over Fiber Extender Kit cost?
The ST121HD20FXA2 4K60 HDMI over Fiber Extender Kit is $637. Pricing for multiple rooms, education and government is available on request. See the ST121HD20FXA2 4K60 HDMI over Fiber Extender Kit price and availability or get a quote for multiple rooms.
Do I need the ST121HD20FXA2 4K60 HDMI over Fiber Extender Kit?
4K60 HDMI over LC fiber: 1 km SM, 300 m MM. It also extends RS-232, IR and analog audio.
What's in the box
- Local HDMI transmitter
- Remote HDMI receiver
- 2 IR blasters
- 2 IR receivers
- 2 power adapters
- 2 RS-232 terminal block connectors
- Quick-start guide
FAQ
What fiber do I need?
LC-terminated fiber. StarTech recommends OM3 multimode or OS1 single mode or better.
Does it support HDMI CEC?
No. StarTech states CEC is not supported.
Is there a local HDMI output?
Yes, the transmitter has an HDMI loop output for a local monitor.
Specs are StarTech.com's published figures. Prices can change.
Related guides
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