HDMI cable at €15 or €80: what really matters
In digital, a cable either carries the signal or it doesn't: an expensive cable doesn't give a 'better' picture. What matters is the right standard for your use. Here's how to choose without being ripped off.
- An HDMI cable does not make the picture better
- For 4K at 120 Hz (PS5, Xbox), you need an Ultra High Speed
- Look for the official certification certification label
- Beyond 3 to 5 metres, a cable active or optical may be needed
Why the price doesn't change the picture
The HDMI signal is digital: strings of 0s and 1s. A decent cable carries them all, and the picture is perfect. An inadequate cable loses some, and you then see dropouts, white sparkles or a black screen. There is no in-between where an expensive cable would give "richer" colours. Gold-plated connectors and thick sheathing change nothing.
The right cable for your use
| Use | Recommended cable |
|---|---|
| TV box, Blu-ray player, set-top box | High Speed or Premium High Speed |
| 4K HDR at 60 Hz | Premium High Speed (18 Gb/s) |
| PS5, Xbox Series X, PC in 4K 120 Hz | Ultra High Speed (48 Gb/s) |
| Soundbar with eARC | High Speed with Ethernet or Ultra High Speed |
How not to get it wrong
- Look for the certification label HDMI on the packaging, with its QR code. It guarantees the cable has been tested.
- Choose the right length : up to 3 metres, a standard cable is enough for 4K 120 Hz. Beyond 5 metres, use an active or optical cable.
- Reuse the console's cable : the one supplied with the PS5 or Xbox Series X is already Ultra High Speed.
Screen going black for a second, flickering white dots, loss of 120 Hz: replace the cable before suspecting the TV or the console.
Frequently asked questions
Does an HDMI 2.1 cable exist?
The official name is "Ultra High Speed". "HDMI 2.1" refers to the standard for devices, but it is the Ultra High Speed cable that supports it.
Does a cable that is too long degrade the picture?
It does not make it blurry: it causes dropouts or a black screen. If everything displays correctly, the cable is suitable.
Do I need to change my cables for a new TV?
Only for 4K 120 Hz (consoles, PC) or if you notice dropouts. For the box and the player, your current cables are fine.
Come and compare the screens in person
At our Temploux shop, we switch on TVs side by side with your content. Or ask our expert salesperson online, right now.
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