Cable Matters Certified Ultra High Speed HDMI 2.1 3-Pack (48Gbps) 8K HDMI Cables, 6.6 ft / 2m with 8K@60Hz, 4K@240Hz & HDR Support
Product description
If you’re trying to get the most out of modern gaming and streaming setups, the cable often becomes the quiet bottleneck. This Cable Matters Certified Ultra High Speed HDMI 2.1 3-pack is built around HDMI 2.1-class bandwidth (48Gbps) and specific performance targets like 8K at 60Hz and 4K at 240Hz support.
It’s not the kind of purchase you make just because, it’s the kind you make when you know your gear can benefit from it. If that’s your situation, this set is easy to justify. If you don’t need those higher modes, it may be more cable than you actually want.
Key takeaways
This 3-pack brings three certified Ultra High Speed HDMI cables under one roof, with a 48Gbps bandwidth profile and HDMI 2.1 standard support. On paper, that positioning matters: it’s designed for higher-resolution and higher-refresh experiences, plus HDR-oriented formats and eARC audio.
A practical bonus is the color-coded bundle. It’s small, but it helps when you’re juggling multiple A/V devices and you’d rather not play “which HDMI is which?” every time you troubleshoot a display or swap inputs.
One thing to keep in mind: “certified” and “supports X” are still dependent on what your source and display actually output. If your TV or receiver doesn’t support the modes you’re aiming for, you won’t magically unlock performance that isn’t there.
The essentials (what you can expect)
The core of this kit is a pair of promises: higher throughput and compatibility with modern signal formats.
- The cable is described as Certified Ultra High Speed and supports 48 Gbps bandwidth per the HDMI 2.1 standard.
- It’s positioned for 8K UHD video up to 8K (7680 × 4320 at 60Hz), and also supports 4K at 240Hz, plus 2K/1440p and 1080p.
- For audio, it’s stated to be compatible with HDMI eARC and immersive surround sound formats (like Dolby Atmos and DTS:X 7.1 / 5.1).
On the usage side, this translates to a setup where your console, PC, or streaming box can send high-bandwidth video to your display while keeping audio routing through an eARC-capable TV/AV receiver. For example: if you’re connecting a gaming console to a 4K/120Hz-or-higher display and you also want eARC for your soundbar or AVR, having an HDMI cable that’s designed for HDMI 2.1-style throughput makes the wiring story cleaner.
Key specifications (signal formats and support)
The manufacturer’s stated support is fairly detailed. Here’s what stands out from the spec-level description:
- Bandwidth: supports 48 Gbps as specified in the HDMI 2.1 standard
- Video support: up to 8K (7680 × 4320 @ 60Hz)
- High refresh support: 4K @ 240Hz
- Audio support: HDCP 2.2 and HDMI eARC compatibility
- Audio channels: supports 32 audio channels (as stated)
- HDR/color support: supports 4:4:4 RGB HDR and 12-bit color
- HDR formats mentioned: Dolby Vision
- Audio sampling detail: 1536 kHz sampling rate (as stated)
- Aspect ratio noted: 21:9 cinema aspect ratio
This is also described as backward compatible with HDMI 2.0 cable standards, which is useful if you’re replacing cables in a mixed environment where not everything is HDMI 2.1.
Where it shines in day-to-day use
This cable set is designed for people who care about staying ready for peak modes—gaming, fast-motion content, and HDR output.
In practical terms, it’s most compelling when you have more than one device to connect. Instead of buying a single cable and then “hoping” it’s enough, a 3-pack lets you cover common scenarios like:
- Console to TV
- Streaming device to the same display or TV input
- A second HDMI route to an AVR/sound setup that uses eARC
Also, if you’ve ever swapped HDMI cables only to realize you picked the wrong one and lost the signal, the color-coded approach helps reduce the hassle. It’s a convenience feature that can save time, especially in setups where you’re frequently debugging.
There’s one limitation worth stating plainly: if your display doesn’t support 8K @ 60Hz, 4K @ 240Hz, or the HDR/ eARC capabilities you’re aiming to use, then this cable won’t “make” those features appear. You’re paying for headroom that you may not fully use.
Who it’s for—and who should skip it
Worth considering if you’ve got a modern console (the description calls out PS5 and Xbox Series X/S), a high-end PC GPU era (RTX 3080/3090 and RX 6800/6900 are specifically mentioned), or a streaming device setup where you want reliable HDMI eARC audio and cleaner support for HDR formats.
It’s also a better fit if you’d rather buy a small bundle once than keep track of which HDMI cable belongs where.
It might not be the best choice if:
- You’re mostly using older HDMI gear where your target resolutions/refresh rates are modest.
- You don’t care about HDR formats and eARC audio routing.
- You’re looking for a cable primarily for basic TV viewing and aren’t using features like high refresh or advanced HDR modes.
Care & maintenance
HDMI cables don’t need much beyond sensible handling, but it’s still worth being mindful. Keep connectors clean and avoid tight bends at the plug ends. When swapping devices, pull by the connector body rather than tugging the cable itself—small habits that can extend lifespan, especially in multi-device setups.
Mini FAQ
Does this support 8K video and 4K high refresh?
Yes. The description states support for up to 8K (7680 × 4320 @ 60Hz) and 4K @ 240Hz.
Is it compatible with HDMI eARC and immersive audio?
The cable is described as fully compatible with HDMI eARC and listed support for immersive surround sound formats like Dolby Atmos and DTS:X 7.1 / 5.1.
Is it backward compatible with older HDMI versions?
It’s stated to be backward compatible with HDMI 2.0 cable standards.
Why does the package include three color-coded cables?
The set is meant to make organization and identification easier across multiple A/V devices, which can help when troubleshooting or swapping connections.
When it makes sense
Buy this Cable Matters Certified Ultra High Speed HDMI 2.1 3-pack if your goal is straightforward: you want HDMI that’s designed for HDMI 2.1-class bandwidth, with support for 8K @ 60Hz, 4K @ 240Hz, HDR features, and HDMI eARC audio. The 3-pack also makes sense if you have multiple devices to wire and you want less friction during setup changes.
Skip it if your equipment doesn’t meaningfully support the higher modes and you just need a basic HDMI replacement. In that case, you may be paying for capabilities you won’t actually use.