The HELIOS 4K LED Processing Platform, developed jointly by ROE Visual and Megapixel VR, is a 1U rack-mounted video processor for professional display applications. It supports 4K video inputs via HDMI 2.0, DisplayPort 1.4, and SDI interfaces with redundant power supply and fiber distribution. The platform delivers superior color management with dynamic gamut re-targeting, precise NanoSync genlock technology with nanosecond-level adjustments, and ultra-low latency processing. It features comprehensive seam correction and exceptional greyscale performance at low brightness levels. With web-based control and robust API integration, the HELIOS 4K offers flexible implementation without requiring additional software installation while maintaining consistent 1U form factor.