Question: is high speed hdmi cable 4k?
Answer: HDMI cables often list their maximum data capacity, and in order to handle 4K/60Hz video signals, the HDMI 2.0 spec raised the maximum capacity from 10.2 Gbps to 18 Gbps. Current HDMI cables that are labeled "high speed" should be able to handle the increased bandwidth of 4K signals at lengths up to three meters.