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StarTech.com ST121SHD50 HDMI Over CAT5/CAT6 Extender with Power Over Cable - 165 ft (50m) HDMI Video/Audio Over Dual Ethernet Cable Extender - 1080p
- Extend HDMI up to 165 ft. (50m) over Cat5e/6 cabling with Power over Cable to Receiver
- HDMI over Cat5
- HDMI Cat5 Extender
- HDMI over Cat6
- HDMI extender over Cat5
- HDMI Ethernet Extender
- HDMI over Dual Cat5/6e Video/Audio Extender
- 1920 x 1080
- HDMI over Cat5e Cat6 Video Extender Kit
- Supports Cat5e (50m) or Cat6 (40m) Ethernet cabling
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Overview
Specs
Reviews (4)
Extend HDMI up to 165ft (50m) over Cat5e6 cabling with Power over Cable to Receiver.
Warranty & Returns
Warranty, Returns, And Additional Information
Return Policies
- Return for refund until: January 31, 2027
- Return for replacement until: January 31, 2027
- This item is covered by Newegg.ca's Extended Holiday Return Policy.
- Read full return policy for details.
We want to ensure your holiday shopping this year is hassle-free. That’s why we’re automatically extending our return policies on almost every product! For purchases placed between November 1st, 2026 and December 31, 2026 you will have until January 31, 2027 to return your product.
Manufacturer Contact Info
- Manufacturer Product Page
- Manufacturer Website
- Support Phone: 1-800-265-1844
- Support Email: support@startech.com
- Support Website
- View other products from STARTECH
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The StarTech.com ST121SHD50 is an HDMI audio/video extender kit that sends a signal over two Cat5e or Cat6 cables, supporting resolutions up to 1080p. Its transmitter, receiver, and Power over Cable design suit classrooms, meeting rooms, and home setups where an HDMI display needs to be placed farther from its source.
Recommended For
- AV installers setting up fixed 1080p digital-signage or projector displays, when the site has two compatible Cat5e/Cat6 cable runs between the source and display.
- Conference-room, classroom, or training-room operators placing a 1080p display or projector away from the presentation source, especially where existing dual Cat cabling can be reused and only one power adapter is convenient.
- Home-theater or control-room users moving a fixed HDMI source away from a display over a point-to-point wired connection, provided 1080p is sufficient and both Cat cables can be routed together.
- Installers with limited power access at the remote display who want to power the transmitter and receiver from one adapter rather than provide power at both ends.
Spec Summary
| Attribute | Value |
|---|---|
| Best For | Extending HDMI video and audio from a source such as a PC to a remote display over Cat5e/Cat6 cabling |
| Video Support And Extension Distance | Supports widescreen HDMI up to 1080p (1920 × 1080); at 1080i, reach is up to 50 m (165 ft) over solid Cat5e or stranded/solid Cat6, or 40 m over stranded Cat5e. At 1080p, reach is up to 40 m over Cat6, 20 m over solid Cat5, or 16 m over stranded Cat5 |
| Ports And Cabling | One female 19-pin HDMI port on each unit and two female RJ-45 ports on each unit; uses Cat 5 UTP or better cabling |
| Power And Operation | Includes a universal AC adapter (100–240 V AC input, 12 V DC output); 18 W power consumption. Power Over Cable lets one power source operate the transmitter and receiver; no software or drivers required |
| Installation And Indicators | Rack-mountable, with one power LED; does not support daisy-chaining |
| Environmental Limits | Operating temperature: 0–40 °C; storage temperature: −10–60 °C; humidity: 0–80% |
| Dimensions And Weight | 0.80 × 3.10 × 2.00 in; 5.50 oz |
| Included Components | HDMI-over-Cat5e/6 transmitter and receiver, universal power adapter, two mounting brackets, two foot pad sets, and instruction manual |
| Model Identifiers | StarTech.com ST121SHD50 |