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StarTech.com ST121HDBTPW HDMI over CAT5e HDBaseT Extender - Power over Cable - Ultra HD 4K up to 330ft
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Product Features
Technical Overview
This video extender leverages HDBaseT technology to transmit HDMI signals, power, and control data over a single CAT5e or CAT6 cable. The system supports Ultra HD 4K video at 4096 x 2160 resolution with full audio passthrough for Dolby TrueHD and DTS-HD Master Audio formats. Two RJ-45 ports facilitate the twisted-pair connection, while dedicated HDMI input and output ports maintain compatibility with standard AV equipment.
The power-over-cable implementation allows either the transmitter or receiver side to provide power for both units, reducing installation complexity in locations with limited power outlets. No software or drivers are required for operation, ensuring plug-and-play functionality across various source and display combinations. The desktop form factor units feature compact dimensions for flexible placement in equipment racks, behind displays, or on work surfaces.
Key Product Advantages
The ST121HDBTPW extender simplifies long-distance HDMI installations by combining video extension and power delivery into a single cable solution. This approach reduces cable clutter, minimizes points of failure, and lowers installation costs compared to traditional methods requiring separate power supplies at both ends of the connection.
Power Over Cable Efficiency
HDBaseT technology delivers power through the same CAT5e/CAT6 cable carrying video signals, allowing a single power source to operate both transmitter and receiver units. This eliminates the need for electrical outlets near both devices, particularly valuable in ceiling-mounted projector installations or display wall configurations.
- Single power source operation
- Reduces outlet requirements
- Simplifies cable management
Professional Installation Ready
Included mounting brackets, foot pads, grounding wires, and screw sets enable secure mounting in various environments. The universal power adapter supports North American, European, UK, and Australian electrical standards for international deployment flexibility.
- Complete mounting hardware included
- International power compatibility
- Grounding provisions for safety
Deployment / Use Cases
This HDMI extender serves professional and commercial applications where HDMI sources must connect to distant displays without signal degradation. The 330-foot reach and 4K support make it suitable for large venues, while the power-over-cable functionality addresses practical installation challenges in spaces with limited electrical infrastructure.
Common deployment scenarios include digital signage networks in retail stores or airports, where content players in equipment rooms connect to displays throughout the facility. Educational institutions benefit from extending lecture hall podium sources to multiple projection systems, while corporate environments use these extenders for boardroom presentations connecting central media PCs to wall-mounted displays. Home theater installations also utilize this technology to place audio/video receivers in dedicated equipment closets while maintaining 4K video quality to living room displays.
Commercial Digital Signage
Distribute marketing content from a central media player to multiple displays across large retail spaces or corporate campuses using existing network cable infrastructure.
Conference & Education Facilities
Extend podium laptop signals to projectors and displays in lecture halls or training rooms without running bulky HDMI cables through walls or ceilings.
What's in the Box
This complete kit includes everything needed for professional installation and immediate operation.
Highlights
- Extends Ultra HD 4K video up to 330 feet over CAT5e/CAT6 cable
- Power over cable technology eliminates separate power supplies at both ends
- Supports 4096 x 2160 resolution with Dolby TrueHD and DTS-HD MA audio
- Includes both HDMI transmitter and receiver in complete kit
- Professional mounting hardware included for secure installation
- No software or drivers required for plug-and-play operation
- Universal power adapter supports multiple international standards
- TAA compliant and RoHS/REACH/WEEE environmental certifications
- Maintains HD video resolutions like 1080p across full 330-foot distance
- Desktop form factor with compact dimensions for flexible placement
Specifications
| Specifications | |
|---|---|
| Manufacturer | StarTech.com |
| Manufacturer Part Number | ST121HDBTPW |
| Brand Name | StarTech.com |
| Product Name | HDMI over CAT5 HDBaseT Extender - Power over Cable - Ultra HD 4K - 330 ft (100m) |
| Packaged Quantity | 1 Kit |
| Product Type | Video Extender Receiver |
| Technical Information | |
| Connectivity Technology | Wired |
| Number of Input Devices Supported | 1 |
| Number of Output Devices Supported | 1 |
| Maximum Operating Distance | 330 ft (100584 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 | |
| Receiver Height | 0.98" (25 mm) |
| Receiver Width | 2.64" (67 mm) |
| Receiver Depth | 3.15" (80 mm) |
| Form Factor | Desktop |
| Receiver Weight (Approximate) | 14.92 oz (423 g) |
| Miscellaneous | |
| Package Contents | HDMI extender HDMI Receiver 4 x Mounting Brackets 2 x Foot Pad Set Universal Power Adapter (NA / EU / UK / AU) 2 x Grounding Wire 2 x Screw Set 5ft (1.5m) Cat5e Cable 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 does this HDMI extender support?
The StarTech.com ST121HDBTPW extends HDMI signals up to 330 feet (100 meters) over CAT5e or CAT6 cabling. At this maximum distance, it supports HD resolutions including 1080p and 1920x1200. For Ultra HD 4K content, optimal performance is maintained up to approximately 115 feet while still delivering 4K quality, making it suitable for most commercial and residential applications requiring extended video transmission.
How does the power over cable feature work?
This extender utilizes HDBaseT technology to deliver power through the same CAT5e/CAT6 cable that carries the HDMI signal. A single power source connected to either the transmitter or receiver unit provides power to both devices, eliminating the need for electrical outlets at both ends of the connection. This simplifies installation in locations like ceiling-mounted projectors or display walls where power access may be limited, while reducing cable clutter and potential points of failure.
What video resolutions and audio formats are supported?
The extender supports Ultra HD 4K video at 4096 x 2160 resolution, along with standard HD formats including 1080p and 1920x1200. Audio passthrough includes high-definition formats like Dolby TrueHD and DTS-HD Master Audio, ensuring complete audio/video synchronization without compression artifacts. The system maintains signal integrity across the supported distance range, making it suitable for both commercial digital signage and high-quality home theater applications.
What installation accessories are included?
The complete kit includes professional mounting hardware for versatile installation: four mounting brackets, two foot pad sets, two grounding wires, and two screw sets. A universal power adapter supports North American, European, UK, and Australian electrical standards, while a 5-foot CAT5e cable provides immediate connectivity. These components enable secure mounting in equipment racks, behind displays, or on desktop surfaces while ensuring proper grounding and international compatibility.
Is this extender compatible with existing network cabling?
Yes, the extender works with standard CAT5e or CAT6 twisted-pair cabling commonly used in network infrastructure. It does not require proprietary cables or specialized wiring, allowing integration into existing cable runs within walls, ceilings, or conduit. This compatibility makes retrofitting existing installations straightforward and cost-effective, as organizations can leverage their current structured cabling investments for video distribution alongside data networking.
What certifications and warranty does this product have?
The ST121HDBTPW is TAA compliant for government procurement, carries EU RoHS certification, and meets Restriction of Hazardous Substances (RoHS 2), REACH, and WEEE environmental standards. StarTech.com backs this product with a 2-year limited warranty, providing assurance of quality and reliability for professional installations. The environmentally friendly design and comprehensive compliance make it suitable for regulated industries and organizations with strict procurement requirements.
| Qty | Price | Available |
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