Technically the first major HDMI 2.1 products for consumers are the new RTX 30 cards from NVIDIA. But the Xbox Series X inches out its PS5 friend as the first full on HDMI 2.1 console. Sure, the amazing Xbox One X already had most HDMI 2.1 features like variable refresh rate and auto low latency mode, but now it’s official.
Sadly, Xbox Series X doesn’t support DisplayPort, which remains relegated to the PC enclosure. However, the console ships with a fine ultra high speed HDMI cable with a 48Gbps bandwidth, which is more than enough for 4K 120Hz and 8K 60. We don’t expect the latter to become normative in games, but 8K video sure is on the cards, so to speak.
We recommend you use the included HDMI cable, though it’s not necessary for 1440p 120Hz as an HDMI 2.0 cable will do just fine. There’s no reason not to use the one Microsoft provide.