OREI BK-402A 4x2 8K eARC HDMI Matrix Switcher with Audio Extractor — HDMI 2.1 / HDCP 2.3, 40Gbps, Supports 8K@60Hz & 4K@120Hz, IR Remote, EDID

The OREI BK-402A is a 4-in/2-out HDMI 2.1 matrix switch designed for UltraHD setups, offering a 40Gbps video bandwidth and full HDCP 2.3 compliance. It supports high-resolution sources up to 8K@60Hz (4:2:0, 10-bit), and additionally handles 8K@30Hz (4:4:4, 10-bit), 4K@120Hz (4:4:4) and 2K@60Hz (10-bit). Built-in support for gaming and smooth playback includes VRR (Variable Refresh Rate), ALLM (Auto Low Latency Mode) and FVA (Fast VActive). eARC is supported specifically between Input 1 and Output 1, and the unit includes audio extraction outputs via optical (TOSLINK) and analog 3.5mm jacks. The BK-402A can downscale signals (8K to 4K and 8K/4K to 1080p) and offers IR remote control plus EDID management for flexible source/output control.