The Extron ISS 608 is an eight-input seamless switcher for the dynamic presentation of HDMI and DisplayPort content at resolutions up to 4K/60. It combines true seamless switching with advanced Vector™ 4K scaling technology. To enhance source switching and facilitate use in live environments, it provides multiple seamless transition effects, an independent preview output, and intuitive front panel operation. RS‑232 and Ethernet are additional control options. Logo insertion, video keying, and PIP capabilities complement primary content, and audio de‑embedding simplifies integration. Matrix Mode adds automatic, seamless transitions to matrix switchers with HDMI outputs. These features and capabilities enable the ISS 608 to deliver a true seamless digital signal switching solution perfect for high-end, live presentation environments.