StarTech.com HDMI Over Dual CAT5/CAT6 Extender with Infrared IR 100 ft/30 m HDMI Over Ethernet Cable Extender Power Free 1080 P
STARTECH.COM (5054629356630 / ST121SHD30) - Cat5e,Cat6 - Wired - AV transmitter & receiver - Certification: CE, FCC, REACH - Depth: 82 mm - Height: 22 mm - Maximum transfer distance: 30 m - Package depth: 210 mm
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Overview of the StarTech HDMI Over Dual CAT5/CAT6 Extender
The StarTech.com HDMI Over Dual CAT5/CAT6 Extender with Infrared IR 100 ft/30 m is a compact, power‑free solution that extends high‑definition video and audio signals over standard Ethernet cabling. Designed for both home entertainment and professional installations, this kit delivers full 1080p resolution across distances up to 30 meters (98 feet), while preserving the original HDMI source quality.
Key Technical Specifications
- Maximum Transfer Distance: 30 m / 100 ft
- Supported Video Resolution: 1920 × 1080 (Full HD)
- Cable Types Supported: Cat5e, Cat6
- Operating Temperature Range: –10 °C to +60 °C (ambient), 0 °C to +40 °C (device)
- Humidity Tolerance: 0–80 % RH
- Power Supply: Power‑free; no external power adapter required
- LED Indicators: Present on both transmitter and receiver units for status monitoring
- Compliance Certifications: CE, FCC, REACH, RoHS
- Material Construction: Aluminum housing for durability and heat dissipation
- Dimensions (Transmitter): 45 mm × 82 mm × 22 mm
- Weight: 241 g (transmitter), 235 g (receiver)
- Mounting Brackets: Included for wall or rack mounting
Design and Build Quality
The extender’s chassis is crafted from high‑strength aluminum, ensuring robust protection against mechanical stress while maintaining low thermal resistance. The compact footprint—45 mm wide, 82 mm deep, and 22 mm tall—allows for unobtrusive installation in tight spaces such as behind a TV or within a media rack.
Both the transmitter and receiver feature dual RJ‑45 ports, enabling flexible cable routing. The units are engineered with a plug‑and‑play architecture; simply connect your HDMI source to the transmitter’s single HDMI input, run an Ethernet cable to the receiver, and plug the receiver into your display.
Signal Integrity and Performance
The extender employs advanced signal processing techniques to preserve the integrity of the HDMI stream over long distances. By utilizing a 56 kHz carrier frequency, it mitigates interference from other network traffic, ensuring stable video and audio delivery even in environments with heavy Ethernet usage.
Infrared (IR) support is integrated into both units, allowing remote control signals to travel alongside the HDMI data. This feature eliminates the need for separate IR extenders or additional cabling, simplifying setup and reducing clutter.
Installation Guide
- Connect the HDMI Source: Plug your computer, Blu‑ray player, or gaming console into the transmitter’s HDMI input.
- Run Ethernet Cable: Use Cat5e or Cat6 cable to connect the transmitter’s RJ‑45 output to the receiver’s RJ‑45 input. Keep the cable length within the 30 m limit for optimal performance.
- Connect Display: Attach the receiver’s HDMI output to your monitor, TV, or projector.
- Power Management: No external power is required; the units draw power from the HDMI source and display via the data cable.
- Verify Operation: Observe the LED indicators on both units. A steady light confirms a successful link, while blinking or off LEDs indicate an issue that may require cable inspection or repositioning.
Use Cases and Applications
- Home Theater Expansion: Extend a high‑definition source to a living room TV without running long HDMI cables.
- Conference Rooms: Deliver crisp video from a presentation laptop to a large display across the room.
- Digital Signage: Connect media players to displays in retail or corporate environments where cable runs are constrained.
- Educational Settings: Provide reliable video feeds for classrooms, labs, and lecture halls without complex wiring.
Maintenance and Troubleshooting
The extender’s design minimizes routine maintenance. However, if you encounter signal degradation or intermittent connectivity, consider the following steps:
- Check Cable Quality: Ensure Cat5e/Cat6 cables are in good condition and not damaged.
- Verify Distance: Confirm that the cable length does not exceed 30 m.
- Inspect Connections: Tighten all RJ‑45 and HDMI connections; loose contacts can cause signal loss.
- Reduce Interference: Keep Ethernet cables away from high‑power electrical lines or sources of electromagnetic interference.
Environmental and Safety Considerations
The product complies with RoHS, ensuring the elimination of hazardous substances. Its CE, FCC, and REACH certifications confirm adherence to stringent safety and environmental standards across Europe, the United States, and other regulated markets.
Operating temperatures range from –10 °C to +60 °C, making it suitable for both indoor and controlled outdoor installations where temperature fluctuations are common.
Conclusion
The StarTech HDMI Over Dual CAT5/CAT6 Extender with Infrared IR 100 ft/30 m offers a reliable, high‑quality solution for extending HDMI signals without the need for additional power supplies or complex cabling. Its compact design, robust build, and comprehensive feature set make it an ideal choice for professionals and enthusiasts alike who require seamless video transmission over extended distances.
| This product in Comparor | |
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Category
This product is cataloged in our store in these categories
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- HDMI Cables |
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International
Find this product in one of our international stores
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 72.49 EUR  317.33 EUR  |
| Colors
Predominant colors of the product |
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| Tags | Extender Cat5 Extender Cat6 Extender HDMI Extender HDMI Over Dual CAT5 HDMI Over Ethernet Cable Infrared IR Extender Power Free Extender 1080P Extender Dual CAT6 Extender HDMI Over Cat5/Cat6 Infrared Extender Free Power Extender Ethernet Cable Extender Over HDMI Extender HDMI 100ft Extender HDMI 30m Extender Extender infrared ir Extender power free Extender 100 ft Extender 30 m Extender dual cat5 Extender dual cat6 Extender hdmi over ethernet Extender 1080 p Extender cable extender Extender over dual cat5 Extender over dual cat6 Extender over ethernet Extender infrared ir 100 ft Extender power free 1080p Dual CAT5 Extender 100 ft Extender 1080 P Extender StarTech.com Extender Over Ethernet Extender Over Dual Extender HDMI Over Extender |
| Identifiers | |
| Brand | STARTECH.COM Startech.com is a brand that specializes in computer and electronic accessories. They offer a wide range of products, including adapters, cables, storage solutions, and more. |
| Model | STARTECH.COM ST121SHD30 |
| MPN | STARTECH.COM ST121SHD30 |
| ID | 1874768 |
| Dimensions / Weight | |
| Key Features | |
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Cable types supported A list of the cable categories or standards that a product can use, such as Cat5e, Cat6, Cat6a, Cat7, Fiber, HDMI, USB, etc. The values are separated by commas and represent the types of cables compatible with the device.
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Cat5e,Cat6 |
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Certification A list of official certifications or compliance marks that the product has received from regulatory bodies, safety organizations, or industry standards groups. Each entry represents a distinct certification such as CE, FCC, RoHS, UL, or WEEE, and may include additional details like version numbers or specific test reports.
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CE, FCC, REACH |
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Connectivity technology The network and data interface technologies supported by the product, such as Wired, Wireless, USB, Bluetooth, or combinations thereof. Each value represents a distinct technology that can be used for communication or power delivery.
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Wired |
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Depth The linear measurement of an object from front to back or top to bottom, expressed in a physical unit such as millimeters, centimeters, inches, etc. It indicates how deep the item is and can be used for fitting, compatibility, or spatial planning.
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82 mm |
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HDMI In The total count of physical HDMI connectors on the product that accept incoming video and audio signals. This value indicates how many external devices can be connected to the device via HDMI for input.
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1 |
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Height The vertical dimension of a product measured from its lowest to highest point. It is expressed in a physical unit such as millimetres, centimetres or inches and applies to any item where height is relevant, including books, electronics, furniture and other objects.
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22 mm |
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LED indicators A list of the functions or statuses that an LED indicator on a device can display, such as power status, activity, link, and other operational signals.
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Yes |
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Manual Indicates whether a user manual—physical or digital—is provided with the product. A value of "Yes" means that a manual is included, while a value of "No" indicates that no manual is supplied.
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Yes |
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Maximum resolution The maximum pixel dimensions of a display or image, expressed as width by height (e.g., 1920x1080). It indicates the highest resolution that a device can output or support and is commonly used for monitors, TVs, smartphones, cameras, and digital images.
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1920 x 1080 pixels |
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Maximum transfer distance The greatest linear distance over which a device can reliably transmit signals or data, expressed in units such as meters, feet, or inches. It indicates the maximum reach of cables, wireless links, or other transmission media under typical operating conditions.
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30 m |
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Mounting brackets included Indicates whether the product comes with mounting brackets as part of its standard package. A value of "Yes" means that one or more brackets are supplied to facilitate installation, while a value of "No" indicates that no brackets are included and must be purchased separately.
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Yes |
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Package depth The linear measurement from front to back or top to bottom of a product’s packaging, expressed in a physical unit such as millimeters, centimeters, inches, etc. It indicates how deep the packaged item is and can be used for fitting, compatibility, or spatial planning.
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210 mm |
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Package Height The vertical dimension of a product’s packaging measured from its lowest to highest point. It is expressed in a physical unit such as millimetres, centimetres or inches and helps customers assess how tall the package will be when stored or shipped.
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55 mm |
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Package width The horizontal measurement of a product’s packaging, expressed in a linear unit such as millimetres or inches. It indicates how wide the package is from one side to the other and helps customers assess fit for storage, shipping, or display.
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150 mm |
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Plug and play Indicates whether the product can be used immediately after installation without requiring additional configuration or drivers.
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Yes |
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RoHS compliance Indicates whether the product is manufactured in accordance with the RoHS (Restriction of Hazardous Substances) directive, which limits the use of certain hazardous materials in electrical and electronic equipment.
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Yes |
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Supported video modes A list of the video resolutions and formats that a product can play or record, expressed in common notation such as "1080p", "720i" or combinations separated by commas. Each value represents an available mode for playback or capture.
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1080p |
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Type The general category or style of the product, such as laptop, printer cartridge, or cooling fan. It helps buyers quickly identify the nature of the item and compare similar products.
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AV transmitter & receiver |
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Weight The mass of the product expressed in a standard unit such as grams or kilograms. It represents how heavy the item is and can be used for shipping calculations, handling instructions, or consumer information.
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241 g |
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Width The horizontal measurement of a product, expressed in a linear unit such as millimetres or inches. It indicates how wide the item is from one side to the other and is used for sizing, fitting, and compatibility purposes.
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45 mm |
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