Atlona AT-RON-444 Four-Output HDMI Distribution Amplifier

The Atlona AT-RON-444 is a 1×4 HDMI distribution amplifier designed for high dynamic range (HDR) formats and ultra-high-definition video systems. Supporting resolutions up to 4K/UHD @ 60 Hz with 4:4:4 chroma sampling, the Rondo™ 444 delivers reliable signal performance for both current and next-generation AV applications. With HDMI data rates up to 18 Gbps and full HDCP 2.2 compliance, it provides seamless content distribution to multiple 4K displays without degradation.

The Rondo 444 includes advanced EDID management, cascading support for up to eight units, and front-panel LED indicators for quick monitoring. Ideal for commercial, residential, and professional AV environments, this compact and rack-mountable 1U device ensures pristine video and audio delivery across all outputs.

Key Features

• 1×4 HDMI distribution amplifier with support for 4K/UHD @ 60 Hz 4:4:4 video
• Compatible with HDR10, Dolby Vision™, and HLG (Hybrid Log-Gamma)
• HDCP 2.2 compliant for secure, reliable signal transmission
• EDID management for stable video and audio communication between devices
• Supports cascading up to eight units for expanded distribution systems
• Passes through multi-channel audio including Dolby Atmos® and DTS:X®
• Field-updatable firmware via USB port
• Front-panel LED indicators for power and HDMI signal status
• Rack-mountable, 1U, half-rack-width enclosure for flexible installation
• Includes mounting plates, rack ears, and external power supply

Technical Specifications

• Model: AT-RON-444
• Video Resolution: Up to 4096×2160 @ 60 Hz
• Chroma Subsampling: 4:4:4, 4:2:2, 4:2:0
• Color Depth: 8-bit, 10-bit, 12-bit
• HDR Support: HDR10 and Dolby Vision™ @ 60 Hz
• Bandwidth: 18 Gbps
• Audio Support: PCM, Dolby Digital, Dolby TrueHD, DTS-HD MA, Dolby Atmos®, DTS:X®
• Sample Rates: 32 kHz – 192 kHz, up to 24-bit
• HDMI Distance:
  • 4K: up to 15 ft (5 m)
  • 1080p: up to 30 ft (10 m)
• Power: Input AC 100–240V, 50/60 Hz; Output DC 5V
• Power Consumption: 6.75W
• Operating Temperature: 32°F to 122°F (0°C to 50°C)
• Storage Temperature: –4°F to 140°F (–20°C to 60°C)
• Humidity: 20% to 90%, non-condensing
• Certifications: CE, FCC, Level VI, RoHS, cULus, RCM, CCC

Physical Specifications

• Dimensions (W × L × H): 8.64 × 9.98 × 1.73 in (219.5 × 253.7 × 44 mm)
• Weight: 3.07 lb (1.39 kg)