HDMI 2.1 Certified Ultra High Speed Cables
16 products
Certified Ultra High Speed HDMI cables for HDMI 2.1 equipment, tested to carry the full 48Gbps for 4K at 120Hz and 8K at 60Hz, in lengths from 1m to 5m in black, blue and silver.
What is an HDMI 2.1 cable?
HDMI 2.1 is the version of HDMI used on current TVs, games consoles, AV receivers and graphics cards. It raises the bandwidth to 48Gbps, enough for 4K at 120Hz, 8K at 60Hz and high frame rate gaming. The cables made for it are officially called Ultra High Speed HDMI cables; "HDMI 2.1 cable" is the name most people search for.
Why certified?
Any cable can be labelled HDMI 2.1, but only certified Ultra High Speed cables have been tested to carry 48Gbps without dropouts, sparkles or a blank screen. Look for the official Ultra High Speed certification label on the packaging, which can be checked with the HDMI Cable Certification app. Every cable in this category is a certified Ultra High Speed cable.
Do I need HDMI 2.1?
- PS5, Xbox Series X and gaming PCs: for 4K at 120Hz, variable refresh rate (VRR) and auto low latency mode (ALLM), connect to an HDMI 2.1 input on the TV or monitor with an Ultra High Speed cable.
- 8K TVs: 8K at 60Hz needs HDMI 2.1 and an Ultra High Speed cable.
- Soundbars and AV receivers: eARC sends lossless Dolby Atmos and DTS:X sound from the TV to the soundbar or receiver. An Ultra High Speed cable supports eARC fully.
- 4K at 60Hz from streaming boxes, Sky and Blu-ray: a certified Premium High Speed cable (18Gbps) is enough; see our standard HDMI cables. An HDMI 2.1 cable also works perfectly and is ready for an upgrade later.
Compatibility
HDMI 2.1 cables work with all older HDMI equipment at whatever that equipment supports, and they carry HDR (HDR10, HDR10+, Dolby Vision), 3D and the HDMI Ethernet channel. To get 4K at 120Hz or 8K, both the source and the screen must have HDMI 2.1 ports with those features switched on; on many TVs only some HDMI inputs support the full HDMI 2.1 speed, so check the TV's manual and use that input.
Which length?
Choose the shortest length that reaches comfortably: a shorter cable keeps the most signal headroom at 48Gbps. Our certified cables come in 1m, 1.8m, 2m, 3m and 5m. For longer runs see our fibre optic HDMI cables.
Which HDMI cable do you need? Our HDMI cable guide explains High Speed, Premium and Ultra High Speed (HDMI 2.1) cables, ARC and eARC, active and fibre optic cables, and mini and micro HDMI.