Gefen
Gefen 1:4 HD-SDI Distribution Amplifier
Best professional solution for broadcasting high-definition video to multiple displays.
The Gefen EXT-HDSDI-144 is a professional 1:4 HD-SDI Distribution Amplifier designed to split a single HD-SDI video source to four simultaneous displays. It ensures instantaneous and high-definition video distribution, supporting resolutions up to 1080p and compatible with NTSC and PAL formats. This amplifier simplifies professional setups by consolidating hardware, making it ideal for broadcasting, production, and A/V distribution environments requiring reliable signal splitting.
$1299.00
Owner Satisfaction
4.5
/ 5
Category Rank
91
/ 353
#91 in Audio & Video Splitters & Switches
Price vs Category Average
-39%
Below average
Input/Output
14
/ x HD-SDI Input, x HD-SDI Outputs
Who it's for
- Production crews managing long cable runs in large venues
- Video technicians working across diverse SDI standard environments
- Broadcast engineers needing reliable multi-display signal distribution
Who should skip it
- Budget-conscious studios seeking affordable consumer-grade hardware
- Field producers requiring portable battery-powered equipment
- Modern production teams upgrading to 4K or UHD workflows
Performance breakdown
Signal Integrity
Maintains broadcast-grade stability without signal degradation across all four outputs.
Latency Performance
Delivers instantaneous video distribution essential for live production environments.
Build Durability
Compact metal chassis withstands the rigors of frequent on-set use.
Format Versatility
Handles NTSC and PAL standards with seamless resolution switching.
Setup Simplicity
Plug-and-play design streamlines complex multi-display broadcast configurations.
Power Efficiency
Consumes minimal power while maintaining high-performance signal amplification.
Key Specs
Input/Output
1x HD-SDI Input, 4x HD-SDI Outputs
SDI Version
HD-SDI - SMPTE 292M (1.485 Gbps)
Supported Resolutions
Up to 1080p
Dimensions
1 in. H x 5 in. W x 2.125 in. D
Power Supply
External 5V DC
Power Consumption
10 watts (max)
Shipping Weight
4 lbs. (2 kg.)
Frame Rate Support
Up to 60Hz for 720p
Features
- Splits one HD-SDI source to four displays
- Instantaneous video distribution
- Supports up to 1080p resolution
- NTSC and PAL format compatible
- Streamlines equipment setup
- Reliable HD-SDI connectivity
- Compact form factor
What customers say
This distribution amplifier earns overwhelmingly positive feedback for its exceptional reliability and signal integrity. Users confirm it flawlessly splits one HD-SDI source into four outputs without any noticeable signal degradation, even over long cable runs. Professionals value its robust build quality, describing it as a dependable set it and forget it solution that minimizes downtime. Its compact design also ensures easy integration into various setups. While the premium price elicits minor reservations from budget conscious buyers, most agree the consistent, flawless performance justifies the investment. It is clearly a trusted workhorse for video engineers prioritizing dependable signal distribution.
Know before you buy
Yes, the EXT-HDSDI-144 is designed to take a single HD-SDI input and distribute it simultaneously to four separate outputs without any noticeable delay.
Yes, it is fully compatible with both NTSC and PAL standards, making it versatile for international broadcasting and production environments.
This distribution amplifier supports high-definition resolutions up to 1080p, ensuring clear and reliable signal quality for your professional setups.
With a compact form factor measuring 5 inches wide and 1 inch high, it is designed to fit easily into crowded equipment racks or small production desks.
Yes, it comes with an external 5V DC power supply and has a maximum power consumption of 10 watts.
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Ready to buy?
$1299