hdcp hdmi

Product details indicate HDMI 2.1 (48 Gbps) for the 8K-capable items and HDMI 2.0 (18 Gbps) for the 4K/HD items.

They list gaming-oriented features including Variable Refresh Rate (VRR), Auto Low Latency Mode (ALLM), Quick Frame Transport (QFT), and Quick Media Switching (QMS), along with general claims of reduced latency and improved refresh-rate handling.

Recommendations vary by model: for optimal 8K performance keep cables short—examples given are under 5 ft (1.5 m) or under 6.5 ft (2 m). For optimal 4K performance several listings recommend keeping cable length under about 13 ft (4 m).

Bidirectional switches support two modes: 2-input to 1-output (two sources to one display) or 1-input to 2-outputs (one source to two displays), with the latter not intended for simultaneous output to both displays.

Yes — the cable descriptions state they are CL3 rated and in-wall installation ready. They also note testing for full-bandwidth video/audio transmission and passage of an EMI noise test.