As far as length, it comes down to the quality of the actual cable. The main determining factor for quality is the diameter of the wires. Larger diameter (lower guage) means less resistance. Cable shielding and placement could also play a factor in decreasing noise on the line. That is it though. Please do not buy monster cable.Turns out it was the length of the HDMI cable not handling the bandwidth. So I just got 4k HDR capable HDMI extenders and extended with some spare cables (which made it shorter). Works perfectly now. So for some cables anyways, 6 meters is too long. EDIT: I looked the size up just to make sure, it’s actually 7.5 meters (25 feet). Today, HDMI cables can reliably run up to about 50 feet (15 meters) before signal degradation becomes an issue. This is what the experts recommend. You can find 100 feet cables being sold (30 meters), but know that the picture quality will likely not be as good as a shorter cable. As this website pointed out, there’s no way to guarantee that
Premium High-Speed . Premium High-Speed HDMI offers a bandwidth of up to 18Gbps and is optimized for HDMI versions 2.0, 2.0a, and 2.0b. In addition, the cable supports HDR and 4K at 60Hz, 4:4:4 chroma sampling, and expanded color spaces, including BT:2020.
HDMI Cable Types. Ultra High Speed HDMI Cables can deliver high-bandwidth features including 4K, 5K (5120 x 2880), 8K (1780x4320), and 10K (10328x7760) at 120 Hz. This cable supports 48 Gbps bandwidth and features low electro-magnetic interference (EMI) that reduces interferences with nearby wireless devices.
Standard HDMI Cable. The standard HDMI cable offers up to 1080i or 720p resolution, and it is HD-ready with a refresh rate of 30Hz. Bandwidth for a standard HDMI cable is 5Gbps. This cable is also a solid choice for playing Blu-rayâ„¢ DVDs or media streamers. HDMI versions 1.0 to 1.2a are native to this cable.
Cable Matters Certified 8K @60Hz Fiber Optic HDMI Cable 49.2 ft / 15m. $140. BUY FROM AMAZON. If you need a really long HDMI cable, then it needs to be "active," as traditional passive HDMI cables
Buy HDMI on Jumia. The maximum pixel clock rate for HDMI 1.0 is 165 MHz, which is sufficient to allow 1080p and WUXGA (1920×1200) at 60 Hz. HDMI 1.3 increases that to 340 MHz, that allows for higher resolution across a single digital link. An HDMI connection can either be single-link (type A/C/D) or dual-link (type B) and can have a video.