Micro 4K HDMI Fiber Extender with RS232 External Audio 5V DC Type-C
Power Input
Overview
The LNK-MHRA4K series delivers uncompressed HDMI video, RS232, and
external stereo audio over
fiber with zero latency and no signal degradation. Supporting
resolutions up to 4K@60Hz (YUV 4:2:0), it
ensures reliable performance for long-haul AV applications. With a
miniature form factor, plug-and-play
installation, and transmission distances up to 80km via single-mode
fiber, it is ideal for command centers,
large displays, and professional AV environments.
Features
Transmits HDMI 1.4a video up to 4K@60Hz (YUV 4:2:0)
Supports RS232 control and 3.5mm stereo audio input/output
Ultra-long transmission distance: 300m (OM3) / up to 80km (SMF)
Hot-pluggable compact design for fast installation
Bi-directional EDID support (dynamic & manual learning)
Strong EMI/RFI immunity for interference-free signals
Data rate up to 10.2Gbps, low power consumption (<5W)
Wide compatibility with professional AV and home theater systems
Technical Indexes
| Type of Extender | Fiber Transmitter for HDMI signal over Optical Fiber Cable |
| Input Signals | HDMI |
| Connector | Female HDMI type A |
| Signal Support | HDMI 1.4a HDMI format standard and HDCP compliant |
| Video Support | Up to 720P/960P/1080p@60Hz, 4K*2K@30Hz |
| Audio Support | Dolby TrueHD, Dolby Digital Plus, DTS, DTS-ES 6.1, DTSHD,
DTS-HD-HRA, DTS-HD Master, (PCM-2CH) |
| Chroma Subsampling | Max 3840*2160@60Hz (4:2:0) Max 3840*2160@30Hz (4:4:4, 4:2:2) |
| EDID | Bi-Directional (Forward + Backward) Transmission: Support Dynamic EDID, Plug & Play, no need to learn Single-Directional (Forward) Transmission: Support EDID learning manually |
| Audio Interface | 3.5MM external stereo audio |
| RS232 | 3 Pin terminal, Baud rate ≤ 38400 |
| Fiber Connector | SFP/LC |
| Bandwidth | 10.2Gbps |
| Transmission Distance | 300m (Over OM3 Fiber) |
| Up to 80km (Over Single-mode Fiber) |
| Operating Temperature | -10 to + 50°C |
| Storage Temperature | -20 to + 80°C |
| Humidity | 5% to 90% RH (non-condensing) |
| MTBF | 100,000 hours |
| Dimension (WxDxH) | 2.87 x 1.73 x 0.69in (73x44x17mm) |
| Weight | 60g / 0.13 lb |
| Power Supply | 5V DC, USB Typ-C |
| Power dissipation | <5W |
| Safety Approvals | CE, FCC, Rohs |
Ordering Information
| Model | Description |
|
| LNK-MHRA4K-MM | Mini HDMI Fiber Extender: 1Ch HDMI Signal(4K*2K) + 1Ch Stereo Audio
+ Backwards RS232, OM3 Multi-mode Fiber, 300 meters, LC, including
1 transmitter & 1 receiver, 5V DC Type-C Power Input |
| LNK-MHRA4K-S20 | Mini HDMI Fiber Extender: 1Ch HDMI Signal(4K*2K) + 1Ch Stereo Audio
+ Backwards RS232, Single-mode Fiber, 20km, LC, including 1
transmitter & 1 receiver, 5V DC Type-C Power Input |
| LNK-MHRA4K-S40 | Mini HDMI Fiber Extender: 1Ch HDMI Signal(4K*2K) + 1Ch Stereo Audio
+ Backwards RS232, Single-mode Fiber, 40km, LC, including 1
transmitter & 1 receiver, 5V DC Type-C Power Input |
| LNK-MHRA4K-S80 | Mini HDMI Fiber Extender: 1Ch HDMI Signal(4K*2K) + 1Ch Stereo Audio
+ Backwards RS232, Single-mode Fiber, 80km, LC, including 1
transmitter & 1 receiver, 5V DC Type-C Power Input |
Application
