HDMI Cables Explained: Do You Need 8K, 2.1, or Premium?

HDMI can be confusing. Here’s what matters for your setup.

Version vs cable

HDMI 2.1 supports 4K@120Hz, 8K, VRR, and eARC. Your TV, console, or GPU must support it too; the cable is just the link. “HDMI 2.0” or “High Speed” cables often work for 4K@60Hz; for 4K@120 or 8K you need a cable certified for HDMI 2.1 (often labeled “Ultra High Speed” or “48G”).

Length and build

Under 10 feet, a well-built High Speed or Ultra High Speed cable is usually enough. Over 15–20 feet, consider an active or fiber HDMI cable to avoid signal dropouts. Avoid no-name ultra-cheap cables for long runs or high bandwidth.

Do you need the most expensive cable?

No. You need a cable that meets the bandwidth you use (4K/60 vs 4K/120/8K) and is reliable at your length. Pay for certification and build quality, not for “premium” branding alone.

Check our cables and accessories for HDMI in the length and spec you need.