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StarTech. com ST128HD20 8-Port 4K 60Hz HDMI Splitter - HDR Support - HDMI 2. 0b - 7. 1 Surround Sound Audio
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Product Features
Technical Overview
The ST128HD20 utilizes advanced EDID emulation technology that automatically communicates display capabilities between the video source and the primary display connected to port 1. This ensures optimal resolution and refresh rate configuration without manual intervention, maintaining native display settings across all connected outputs.
The splitter supports HDMI 2.0b specifications including 4K resolution at 60Hz with 4:4:4 chroma subsampling for pristine color reproduction. HDCP 2.2 content protection is fully supported with backward compatibility to HDCP 1.4, enabling seamless playback of protected media across legacy and modern display equipment.
This section brings together practical product details such as Maximum Video Resolution, HDMI In, HDMI Out, Number of HDMI Inputs, so buyers can judge configuration, deployment fit, and day-to-day suitability with less guesswork.
A strong technical summary explains how the product's interfaces, hardware profile, and operating characteristics work together in real deployment. Buyers often need this context to confirm compatibility with existing devices, expected performance in daily use, and whether installation will be straightforward for IT staff or end users.
Key Product Advantages
This HDMI splitter delivers reliable signal distribution with features specifically engineered for professional deployment scenarios. The combination of high-bandwidth video support, comprehensive audio capabilities, and intelligent EDID management creates a versatile solution for demanding multi-display environments.
Simultaneous Audio Distribution
All eight output ports deliver 7.1 surround sound audio simultaneously, supporting Dolby True HD and DTS HD Master Audio formats for immersive audio-visual experiences across multiple zones.
- Audio on all 8 ports
- Dolby True HD support
- DTS HD Master Audio compatible
Universal Compatibility
The splitter works with HDMI and DVI displays through appropriate adapters, supporting wide screen monitor formats without requiring additional drivers or software installation.
- HDMI/DVI compatible
- No drivers required
- Wide screen formats supported
Deployment / Use Cases
The ST128HD20 excels in environments requiring identical visual content across multiple displays with synchronized audio. Its 8-port configuration makes it ideal for digital signage networks, classroom or training facilities, retail display walls, and corporate presentation spaces where consistent messaging across multiple screens is essential.
The splitter's support for extended cable runs up to 16.4 feet with passive HDMI cables, combined with compatibility with active HDMI cables and extenders for longer distances, provides flexibility in installation design. This makes the unit suitable for both compact conference room setups and larger auditorium or lobby installations where displays may be distributed across considerable physical space.
Digital Signage Networks
Deploy identical promotional content, informational displays, or wayfinding systems across eight screens from a single media source with perfect synchronization.
Educational & Training Facilities
Display instructional content simultaneously on multiple classroom monitors or projection screens while maintaining high-quality 4K resolution and surround sound audio.
Physical Profile
The splitter features a compact metal enclosure measuring 10.20" × 4.30" × 1" (259.08 × 109.22 × 25.40 mm) with an approximate weight of 1.68 lb (762 g). The durable construction ensures reliable operation in rack-mounted or desktop configurations. Included mounting brackets facilitate secure installation in equipment racks or under-desk mounting scenarios for clean cable management and space optimization.
- Width
- 4.30" (109.22 mm)
- Height
- 1" (25.40 mm)
- Weight
- 1.68 lb (762 g)
- Length
- 10.20" (259.08 mm)
What's in the Box
The package includes all essential components for immediate deployment of the HDMI splitting system.
Highlights
- Distributes 4K 60Hz video to eight displays simultaneously
- Supports HDR content with 4:4:4 chroma subsampling
- Delivers 7.1 surround sound audio on all output ports
- HDMI 2.0b technology with 18Gbps bandwidth
- EDID emulation ensures optimal display settings automatically
- HDCP 2.2 to HDCP 1.4 conversion for content compatibility
- Works with passive HDMI cables up to 16.4ft (5m)
- No drivers required for plug-and-play operation
- Includes universal power adapter for global deployment
- TAA compliant for government procurement eligibility
Specifications
| Specifications | |
|---|---|
| Manufacturer | StarTech.com |
| Manufacturer Part Number | ST128HD20 |
| Brand Name | StarTech.com |
| Product Name | 8-Port 4K 60Hz HDMI Splitter |
| Packaged Quantity | 1 Each |
| Product Type | Signal Splitter |
| Video | |
| Maximum Video Resolution | 3840 × 2160 |
| Interfaces/Ports | |
| HDMI In | Yes |
| HDMI Out | Yes |
| Number of HDMI Inputs | 1 |
| Number of HDMI Outputs | 8 |
| Power Description | |
| Input Voltage | 120 V AC,230 V AC |
| Physical Characteristics | |
| Height | 1" (25.40 mm) |
| Width | 4.30" (109.22 mm) |
| Length | 10.20" (259.08 mm) |
| Weight (Approximate) | 1.68 lb (762 g) |
| Miscellaneous | |
| Package Contents | 8-Port 4K 60Hz HDMI Splitter 1 x Universal Power Adapter (NA/JP, UK, EU, ANZ) 1 x Set of Mounting Brackets |
| Country of Origin | China |
| TAA Compliant | Yes |
| Environmentally Friendly | Yes |
| Environmental Compliance | Restriction of Hazardous Substances (RoHS),Waste Electrical and Electronic Equipment Directive (WEEE),Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) |
| Warranty | |
| Limited Warranty | 2 Year |
User Manual
FAQ
What is the maximum resolution supported by this HDMI splitter?
The StarTech.com ST128HD20 supports 4K Ultra HD resolution at 3840 × 2160 pixels with a 60Hz refresh rate. This high-resolution capability ensures crisp, detailed video distribution across all eight connected displays while maintaining smooth motion performance suitable for both static content and video playback applications.
Does this splitter support HDR content?
Yes, the splitter fully supports HDR (High Dynamic Range) content distribution. Combined with 4:4:4 chroma subsampling and 18Gbps HDMI 2.0b bandwidth, it preserves the enhanced color depth and contrast ratios of HDR across all connected displays, making it suitable for premium visual presentations and media playback.
How many displays can I connect to this HDMI splitter?
This is an 8-port HDMI splitter with one input and eight outputs. You can connect a single HDMI video source and distribute that signal to up to eight separate displays simultaneously. All displays will show identical content with synchronized audio, making it ideal for multi-screen installations in digital signage, education, or presentation environments.
What audio formats does this splitter support?
The splitter supports 7.1 channel surround sound audio, including high-definition audio formats such as Dolby True HD and DTS HD Master Audio. Audio output is available on all eight ports simultaneously, ensuring consistent audio delivery across every connected display without degradation or synchronization issues between screens.
What is EDID emulation and how does it work with this splitter?
EDID (Extended Display Identification Data) emulation automatically communicates display capabilities between your video source and the primary display connected to port 1. This technology ensures that the source device outputs the optimal resolution and refresh rate for your display configuration without requiring manual settings adjustment. The splitter maintains these native settings across all connected displays for consistent performance.
Is this HDMI splitter compatible with HDCP-protected content?
Yes, the splitter supports HDCP 2.2 content protection with backward compatibility to HDCP 1.4. This enables playback of protected media from modern sources like Blu-ray players, streaming devices, and gaming consoles while maintaining compatibility with older display equipment. The automatic conversion between HDCP versions ensures seamless content distribution without handshake issues.
What resolution or display format is specified?
It features a display specification of 3840 × 2160, giving you clear visuals for work and media use.
What refresh rate or brightness details are available?
Display-oriented products are best judged through screen, connectivity, and installation specifications. Those facts help buyers confirm visual fit, mounting flexibility, and deployment suitability more clearly than generic summary text.
| Qty | Price | Available |
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