The BK-401A is a high-performance 4x1 HDMI switch designed to connect up to four HDMI sources to a single 8K or 4K display. Fully compliant with HDMI 2.1 and HDCP 2.3 standards, it delivers exceptional video clarity with support for resolutions up to 8K@60Hz, 4K@120Hz, and 1080p@120Hz. With a video bandwidth of up to 48Gbps, it ensures seamless signal integrity for high-resolution, high-frame-rate content. 

Ideal for gaming consoles, streaming devices, and media players, the BK-401A also supports Variable Refresh Rate (VRR), HDR10+, and Dolby Vision, delivering smooth and dynamic visuals across a range of content types. EDID passthrough ensures optimal compatibility between source and display, while audio can be extracted via the integrated S/PDIF optical output for flexible integration with sound systems. 

Users can effortlessly switch between sources using the front panel button, the included IR remote, or RS-232 control ensuring reliability and performance in both home entertainment and professional AV setups.