Throncom
Mini 4K HDMI Fiber Extender - HDMI to Fiber Converter, 4K Video Optical Transceiver Up to 20km Over Single-Mode Optical with External Stereo Audio and RS232
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
SpecPicks Verdict
SpecPicks classifies Mini 4K HDMI Fiber Extender - HDMI to Fiber Converter, 4K Video Optic… as a niche pick — read recent reviews before buying in the displays & upscalers category, based on 1 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. Throncom's positioning sits within the broader category mid-tier. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for displays & upscalers of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Backed by Throncom's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Below-average customer rating — read recent reviews before buying
- ✗ Limited review volume so far — fewer data points on long-term reliability
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- 【Ultra HD 4K Resolution】- This HDMI optical transceiver supports up to 4K*2K@60Hz resolution, compatible backwards with lower resolution.
- 【Support Backward RS232】- The HDMI fiber extender support serial RS232 signal, you can control the RS232 serial devices from remote side.
- 【Support External Stereo Audio】- The HDMI Extender is designed with 3.5mm external stereo audio, audio and video synchronous transmission.
- 【Uncompressed Transmission】- HDMI to fiber converter can transmit the uncompressed signals up to 12.5 Miles with no delay and no loss.
- 【Mini Size 2.87 x 1.73 x 0.69in】- The 4K HDMI fiber extender has miniature form factor for ease of use and installation, adopts rugged aluminum material.
Full Specifications
| Brand | Throncom |
|---|---|
| Color | 4K HDMI Fiber Converter with Audio RS232 20Km |
| Finish | Hdmi |
| Dimensions | 2.87 x 1.73 x 0.69in |
| Unit Count | 1.0 Count |
| Model Number | Throncom Mini |
| Input Voltage | 5 Volts |
| Warranty Type | Limited |
| Connector Type | HDMI |
| Item Dimensions | 1.73 x 0.69 x 2.87 inches |
| Mfr Part Number | TH-MHRA4K-S20 |
| Number of Items | 1 |
| Number of Ports | 1 |
| Power Plug Type | Type C |
Ready to buy?
Mini 4K HDMI Fiber Extender - HDMI to Fiber Converter, 4K Video Optical Transceiver Up to 20km Over Single-Mode Optical with External Stereo Audio and RS232 is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
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