Do I need an HDMI 2.1 cable?
Only for 4K at 120Hz (or 8K) from a PS5, Xbox Series X or gaming PC, into a TV with an HDMI 2.1 socket. For TV boxes, streaming sticks, Sky, Virgin and Blu-ray, a standard High Speed HDMI cable is enough.
Checked 10th November 2026.
Worth knowing
- HDMI 2.1 cables are sold as Ultra High Speed. Look for that name rather than 2.1, which describes sockets, not cables.
Ultra High Speed HDMI (HDMI 2.1), 2m£5.98 at TV Cables
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Answer checked by Tely. Prices and stock from TV Cables’ product feed, last updated 10th November 2026. Shop links earn Tely a small commission; it never decides what we recommend. How we check.