HDMI Cables From China Fail At 4K: AWG, HDCP, and Certification Checks Before Bulk Orders
Short answer: many HDMI cables sourced from China pass a 1080p signal but drop frames, handshake errors, or no picture at all at 4K/60 or 8K/60. The reason is not the connector. It is conductor gauge over distance, the HDMI version stamped on the housing, and whether the HDCP cipher matches the source device. The … Read more