The AC-MX-42 is a 4x2 HDMI matrix switch designed to route any HDMI source such as Blu-ray players, satellite receivers, game consoles, or PCs to multiple displays. It supports HDMI 2.0 (a/b), HDCP 2.3, and delivers up to 18 Gbps bandwidth for 4K60 4:4:4 resolution with full HDR support including HDR10, Dolby Vision, and HDR10+. The matrix features advanced capabilities such as 4K to 1080p down-scaling on one output, perfect AVR bypass for uncompromised 18 Gbps video to displays, and down-scaled output with uncompressed audio to legacy AVRs. Control options include IR, RS232, and LAN, with support for Crestron, C4, RTI, and ELAN drivers. The system also integrates digital Toslink and balanced analog audio outputs, meeting CE certification, RoHS compliance, and Prop65 standards.