Product Type | HDBaseT HDMI Extender and Splitter |
Form Factor | External Box |
Enclosure Color | Black |
Power Requirements | 12V DC, 3A |
Weight | 0.64 kg |
Mounting Type | Wall or Shelf Mountable |
Included Accessories | Power adapter, mounting brackets |
Warranty | 2 Years |
StarTech 3-Port 4K HDBaseT HDMI Extender Over CAT5/CAT6 - ST124HDBT





Key Benefits

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AI-Powered Summaries from Online Customer Reviews
Eye-Insights™ are generated by proprietary AI that analyzes real online customer reviews to highlight top pros and key product features. While we aim for accuracy, insights are provided “as-is” and individual results may vary.
- Ideal for digital signage and multi-display AV setups requiring up to three 4K UHD outputs
- Leverages existing Ethernet infrastructure (Cat 5e or better), reducing cabling costs and installation complexity
- TAA compliance and reliable 2-year support make it suitable for government and enterprise deployments
Product Overview
Distribute your HDMI source to three remote displays over standard CAT5 CAT6 or CAT7 cable - HDMI splitter - 4K digital signage distribution - HDMI extender - HDBaseT extender - 1x3 HDMI extender - Mountable HDMI over CAT6 extender - HDBaseT splitterSpecifications
Product Overview
Wireless Features
Wi-Fi Support |
Compliance & Origin
Country of Origin | Taiwan |
TAA Compliant | Yes |
Certifications | CE, FCC, RoHS |
Advanced Security Features
Content Protection | HDCP 1.4 |
Signal Encryption | No encryption |
Interfaces
Video Input Ports | 1 x HDMI |
Video Output Ports | 3 x RJ-45 (HDBaseT) |
HDMI Version | HDMI 1.4 |
HDCP Support | Yes |
EDID Management | Yes |
Interface Type | HDBaseT over Cat5e/6/7 |
Maximum Data Rate | 10.2 Gbps |
Physical & Environmental
Width | 5.7 inch (145 mm) |
Depth | 7.9 inch (200 mm) |
Height | 1.2 inch (30 mm) |
Operating Temperature | 0°C to 40°C (32°F to 104°F) |
Storage Temperature | -10°C to 60°C (14°F to 140°F) |
Operating Humidity | 10% to 85% RH, non-condensing |
Storage Humidity | 5% to 90% RH, non-condensing |
Housing Material | Aluminum |
Cloud Management & Licensing
Cloud Management | |
Licensing Requirements | None |
Additional Features
Splitter Functionality | 1x3 HDMI over HDBaseT Splitter |
Distance - 4K Resolution | Up to 35 m (115 ft) |
Distance - 1080p Resolution | Up to 70 m (230 ft) |
Supported Resolutions | 4K @30Hz, 1080p @60Hz |
Cable Type Required | Cat5e or better (UTP/STP) |
Plug-and-Play | Yes |
Audio Support | Yes - Dolby TrueHD, DTS-HD Master Audio |
LED Indicators | Power, Link/Activity |