Key Digital® KD-S4x1X-2 is a 4K/18G HDMI switcher engineered to offer the best in quality, performance, and reliability, while providing a cost-effective HDMI switching solution. Designed for professional audio video installations in presentation, theater, and gaming spaces, KD-S4x1X-2 enables multiple video sources to connect to a single video display while L/R analog and Optical audio de-embed ports may be used to feed audio of the selected source into amplifiers, DSPs, or sound bars. Enable auto-switching to automatically select newly connected/powered sources or sequentially advance from the currently selected source when it is disconnected/powered off. KD-S4x1X-2 supports all SD, HD, VESA and Ultra HD/4K video standards with HDR header information included in a variety of 4K EDID handshakes. The switchers feature push button and optical IR switching, statusmonitoring LEDs, and support of HDR10, HDCP 2.2 and 4K.