SmartAVI HDX-400-PROS 4-Port HDMI Extender via CatX STP
Best multi-display solution for professional digital signage and remote installations.
The SmartAVI HDX-400-PROS is a 4-port HDMI extender designed to broadcast high-definition media from a single source to four remote displays up to 180 feet away using standard CatX STP cabling. This system is ideal for digital signage or remote viewing setups, allowing source equipment to be secured remotely. It supports resolutions up to 1080p at 60Hz, including 3D signals, and maintains signal integrity over the full extension range. The unit offers a plug-and-play installation with convenient LED status indicators for easy monitoring.
$399.00
Owner Satisfaction
4.7
/ 5
Category Rank
4
/ 912
#4 in HDMI Splitters & Switches
Price vs Category Average
-60%
Below average
Input Ports
1
/ HDMI source
Who it's for
- Installers needing long-distance signal transmission for large venues
- AV professionals managing multi-screen digital signage setups
- Technicians working in environments with high electromagnetic interference
Who should skip it
- Budget-conscious buyers seeking simple home entertainment solutions
- DIY installers lacking experience with shielded cabling requirements
- Users wanting a streamlined setup without complex power management
Performance breakdown
Signal Distance
Reliable 180-foot reach covers most commercial and residential signage layouts.
Installation Simplicity
True plug-and-play functionality makes setup effortless for non-technical users.
Audio Fidelity
Comprehensive support for high-end formats ensures premium sound across all outputs.
Resolution Ceiling
Limited to 1080p, falling behind modern 4K display standards.
Build Compactness
Low-profile design fits easily behind displays or in tight equipment racks.
Monitoring Utility
Integrated LED status lights provide quick, clear feedback on connection health.
Key Specs
Input Ports
1 HDMI source
Output Ports
4 displays via CatX STP cables
Maximum Signal Extension
Up to 180 ft
Maximum Resolution Support
1080p
Maximum Refresh Rate
60 Hz
Bandwidth
6.75 Gbps
Supported Audio Formats
DTS-HD, Dolby TrueHD, LPCM7.1, DTS, Dolby-AC3, DSD
Dimensions
9.125 in. W x 1.125 in. H x 3.125 in. D
Features
- Distributes one HDMI source to four displays
- Extends signal up to 180 feet via CatX STP
- Supports high-definition and 3D signals
- Maintains signal quality over distance
- Plug-and-Play installation
- LED status lights for monitoring
- Supports advanced audio formats
- Keeps source equipment securely remote
What customers say
Professional users overwhelmingly praise the SmartAVI HDX-400-PROS for its exceptional reliability and robust performance in demanding, long-distance A/V distribution. The core positive theme centers on its consistent ability to flawlessly extend high-definition signals across four displays over significant distances with pristine signal integrity and virtually no latency. Reviewers frequently note the industrial build quality, making it a dependable, set it and forget it solution for mission-critical installations. While the initial investment is high, users confirm the performance justifies the cost for professional applications. Success heavily relies on using high-quality shielded cabling to maintain optimal operation.
Know before you buy
This extender requires CatX STP (Shielded Twisted Pair) cabling to maintain signal integrity. Using shielded cable is essential to ensure the best performance and to protect the signal over the 180-foot extension range.
No, the HDX-400-PROS supports resolutions up to 1080p at 60Hz. It is designed for standard high-definition setups rather than 4K or Ultra HD displays.
Yes, it supports a wide range of advanced audio formats, including DTS-HD, Dolby TrueHD, LPCM7.1, DTS, Dolby-AC3, and DSD, ensuring high-quality audio transmission alongside your video.
The system features a plug-and-play design, meaning no complex software configuration is required. Simply connect your HDMI source, plug in your CatX cables to the remote displays, and power on the unit.
The unit is equipped with integrated LED status indicators. These lights provide real-time feedback, allowing you to easily monitor the connection status and troubleshoot if a display is not receiving a signal.
Yes, this is one of the primary benefits of the HDX-400-PROS. Because it extends the signal up to 180 feet, you can keep your media players or computers in a secure, centralized location while distributing the feed to four remote screens.
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$399