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StarTech.com ST121HDBTE HDMI over CAT5e HDBaseT Extender - Power over Cable - Ultra HD 4K up to 230ft (70m)
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Product Features
Technical Overview
This HDBaseT extender operates on wired connectivity technology, supporting one input device and one output device through its comprehensive port configuration. The system delivers maximum video resolution of 4096 x 2160 pixels (4K) while maintaining full support for HD video resolutions including 1920x1200 and 1080p at extended distances.
The transmitter and receiver units feature identical compact dimensions of 1" H x 2.60" W x 3.10" D (25.40 mm x 66.04 mm x 78.74 mm), with each unit weighing approximately 15.10 ounces (428.08 grams). This uniform sizing ensures consistent mounting and installation options throughout the deployment. No software or drivers are required for operation, enabling plug-and-play functionality across various AV systems and source devices.
Relevant factors for this section include Connectivity Technology, Number of Input Devices Supported, Number of Output Devices Supported, Graphics Modes. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Key Product Advantages
The ST121HDBTE extender kit provides distinct advantages for AV professionals and installers seeking reliable, high-performance video extension without complex infrastructure requirements. Its integrated design and comprehensive accessory package deliver immediate value from unboxing to final installation.
Simplified Power Management
Power-over-cable technology allows a single power source at either the transmitter or receiver side to power both units, reducing cable management challenges and eliminating the need for multiple power outlets along the transmission path.
- Single power source operation
- Reduced cable clutter
- Flexible power placement
Professional Installation Ready
Included mounting brackets and comprehensive installation accessories enable secure, professional mounting in rack, wall, or equipment cabinet configurations without requiring additional purchases.
- Mounting bracket kit included
- Grounding wires provided
- Universal power adapter supports multiple regions
High-Quality Audio Preservation
Beyond video extension, the system maintains high-definition audio formats including Dolby TrueHD and DTS-HD Master Audio, ensuring complete AV signal integrity across the extended distance.
- Dolby TrueHD support
- DTS-HD MA compatibility
- Full audio/video synchronization
Deployment / Use Cases
This HDMI extender kit addresses common distance challenges in modern AV environments where source devices and displays must be separated beyond standard HDMI cable limitations. Its robust construction and reliable performance make it suitable for both permanent installations and temporary setups requiring extended video transmission.
In commercial settings, the extender proves invaluable for conference room systems where presentation laptops or media players need to connect to wall-mounted displays across large rooms. Digital signage deployments benefit from the extended distance capabilities when media players are centrally located while displays are distributed throughout retail spaces, lobbies, or transportation hubs. Educational institutions utilize these extenders for classroom technology where instructor stations connect to multiple displays throughout learning spaces.
Conference Room Integration
Extend video from central conference tables to wall-mounted displays or projectors while maintaining 4K resolution for detailed presentations and video conferences.
Digital Signage Distribution
Connect media players in equipment closets to displays throughout facilities using existing CAT5e/6 infrastructure, simplifying cable management and centralizing source equipment.
What's in the Box
The complete kit includes all components necessary for immediate deployment and professional installation.
Highlights
- Extends Ultra HD 4K video up to 230 feet (70 meters) over CAT5e/6 cable
- HDBaseT technology maintains picture quality with power-over-cable functionality
- Supports 4096 x 2160 resolution and HD formats like 1920x1200 and 1080p
- Single power source powers both transmitter and receiver units
- Includes mounting brackets for professional installation
- No software or drivers required for plug-and-play operation
- Supports Dolby TrueHD and DTS-HD MA audio formats
- Compact black transmitter and receiver units with identical dimensions
- Universal power adapter supports North American, European, UK, and Australian outlets
- 2-year warranty with TAA compliance and EU RoHS environmental certification
Specifications
| Specifications | |
|---|---|
| Manufacturer | StarTech.com |
| Manufacturer Part Number | ST121HDBTE |
| Brand Name | StarTech.com |
| Product Name | HDMI over CAT5 HDBaseT Extender - Power over Cable - Ultra HD 4K |
| Packaged Quantity | 1 Kit |
| Product Type | Video Extender Transmitter/Receiver |
| Technical Information | |
| Connectivity Technology | Wired |
| Number of Input Devices Supported | 1 |
| Number of Output Devices Supported | 1 |
| Maximum Operating Distance | 229.66 ft (70000 mm) |
| Video | |
| Graphics Modes | 4K |
| Maximum Video Resolution | 4096 x 2160 |
| Interfaces/Ports | |
| Network (RJ-45) | Yes |
| HDMI In | Yes |
| HDMI Out | Yes |
| Number of Network (RJ-45) Ports | 2 |
| Number of HDMI Inputs | 1 |
| Number of HDMI Outputs | 1 |
| Media & Performance | |
| Media Type Supported | Twisted Pair |
| Twisted Pair Cable Standard | Category 6 |
| Physical Characteristics | |
| Color Family | Black |
| Product Color | Black |
| Transmitter Height | 1" (25.40 mm) |
| Transmitter Width | 2.60" (66.04 mm) |
| Transmitter Depth | 3.10" (78.74 mm) |
| Receiver Height | 1" (25.40 mm) |
| Receiver Width | 2.60" (66.04 mm) |
| Receiver Depth | 3.10" (78.74 mm) |
| Transmitter Weight (Approximate) | 15.10 oz (428.08 g) |
| Receiver Weight (Approximate) | 15.10 oz (428.08 g) |
| Miscellaneous | |
| Package Contents | HDMI over CAT5e/6 Transmitter Unit HDMI over CAT5e/6 Receiver Unit Universal Power Adapter (NA/EU/UK/AU) Mounting Bracket Kit 5ft (1.5m) Cat5e Cable Grounding Wires Instruction Manual |
| Country of Origin | Taiwan |
| TAA Compliant | Yes |
| Environmentally Friendly | Yes |
| Environmental Certification | EU RoHS |
| Environmental Compliance | Restriction of Hazardous Substances (RoHS) 2,Registration, Evaluation, Authorization and Restriction of Chemicals (REACH),Waste Electrical and Electronic Equipment Directive (WEEE) |
| Warranty | |
| Limited Warranty | 2 Year |
User Manual
FAQ
What maximum distance can this HDMI extender achieve with 4K video?
The ST121HDBTE extender maintains Ultra HD 4K video quality up to 115 feet (35 meters) over CAT5e or CAT6 cabling. For extended distances up to the maximum 230 feet (70 meters), the system supports high-definition video resolutions including 1920x1200 and 1080p while preserving excellent picture quality throughout the entire transmission path.
How does the power-over-cable functionality work with this extender?
This HDBaseT extender features power-over-cable technology that allows a single power source connected to either the transmitter or receiver unit to power both devices. This eliminates the need for separate power outlets at both ends of the connection, simplifying installation and reducing cable clutter. The included universal power adapter supports multiple regional configurations for flexible deployment.
What video resolutions and audio formats does this extender support?
The extender supports maximum video resolution of 4096 x 2160 pixels (4K) along with HD resolutions including 1920x1200 and 1080p. For audio, it maintains high-definition formats such as Dolby TrueHD and DTS-HD Master Audio, ensuring complete AV signal integrity without compression or quality loss during transmission.
What cabling is required for installation, and is any included?
The extender operates over standard CAT5e or CAT6 twisted pair cabling, which must be purchased separately for most installations. The kit includes a 5-foot (1.5-meter) CAT5e cable for initial setup and testing. For permanent installations, certified CAT5e or CAT6 cable of appropriate length should be used to ensure optimal performance at the desired distance.
What mounting options are available with the included hardware?
The kit includes a complete mounting bracket kit that supports secure installation of both transmitter and receiver units. These brackets enable mounting in rack configurations, on walls, or within equipment cabinets. Grounding wires are also provided for proper electrical grounding in professional installations, ensuring safety and signal integrity.
What warranty and compliance certifications apply to this product?
StarTech.com provides a 2-year limited warranty for this extender kit. The product is TAA compliant and meets multiple environmental certifications including EU RoHS, REACH, and WEEE directives. It is manufactured in Taiwan with environmentally friendly materials and construction, supporting responsible electronics disposal and recycling practices.
| Qty | Price | Available |
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