What HDMI cable do I need for 4K gaming at 120Hz?

An HDMI 2.1 "Ultra High Speed" certified cable, which carries the bandwidth for 4K at 120Hz plus VRR and ALLM. Older HDMI 2.0 cables cap out at 4K 60Hz. Both your source and display also need to support HDMI 2.1 for the full benefit — the cable alone won't unlock it.

Is DisplayPort or HDMI better for a high-refresh gaming monitor?

For a PC gaming monitor, DisplayPort is usually the better choice — it handles very high refresh rates at 1440p and 4K and is standard on graphics cards. HDMI 2.1 is excellent too, especially for TVs and consoles. Use whichever standard both your GPU and monitor support at the highest rate.

Which Ethernet cable should I buy for gaming?

Cat 6 covers gigabit speeds and is the practical default for home gaming; Cat 6a adds shielding and headroom for longer runs. The real gain for gaming is switching from Wi-Fi to a wired connection, which lowers latency and removes the drop-outs that cause lag spikes. Cat 8 is unnecessary for home use.

Will a more expensive cable improve my picture or speed?

Not on its own. A cable either meets the standard for your resolution and speed or it doesn't — once it does, paying more rarely improves the signal. Buy the correct rated standard (for example HDMI 2.1 for 4K 120Hz) in a sensible length, and skip premium pricing that promises performance the standard already guarantees.

What's the difference between USB-C and Thunderbolt cables?

They share the same connector shape, but Thunderbolt carries much higher bandwidth, enough for multiple displays and fast external storage. A plain USB-C cable handles charging and standard data. Check the cable's speed rating and power-delivery support so it matches what you're plugging in.

How long can an HDMI or DisplayPort cable be before quality drops?

For everyday lengths up to a few metres, a correctly rated cable runs at full quality. Beyond that — especially at 4K and high refresh rates — signal can degrade, so look for cables specifically rated for longer distances. The simplest rule is to buy a cable just long enough for the run, with a little slack but no excess.

Do I need special cables for a wired internet setup at home?

Cat 6 or Cat 6a cable is all most homes need for fast, stable wired networking. Run it from your router or switch to your PC or console for lower latency than Wi-Fi. Measure the distance and buy a single pre-made length where possible to avoid joins and keep the run clean.

Are cables covered by warranty when bought in South Africa?

Yes. Cables bought from Evetech come with local warranty and nationwide delivery, so a faulty cable is handled locally rather than through an overseas return. Check this page for current stock, lengths and pricing in Rand.

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The cable you pick decides whether your gear actually performs to spec. A monitor that can do 4K at 120Hz only gets there over a cable rated for it — the wrong HDMI or DisplayPort cable quietly caps you at 60Hz or drops the signal. The same goes for networking: a Cat 6 run handles gigabit, while older or unrated cable can bottleneck a fast line.

Match the cable to the job. Use HDMI 2.1 or a high-rate DisplayPort cable for high-refresh and 4K gaming, USB-C for modern peripherals and charging, and Cat 6 or Cat 6a Ethernet for wired networking. For gaming, a wired connection almost always beats Wi-Fi for latency, so a good network cable is one of the cheapest upgrades you can make.

Evetech stocks display, USB and network cables in the lengths and standards that match real builds, all with local warranty and nationwide delivery. Buy the right cable once below, and skip the slow refresh rates and dropped connections that come from guessing.

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How to Choose the Right Cable

Cables aren't all the same, but you also don't need the most expensive one. What matters is the right standard for what you're connecting and a length that's long enough without being wasteful. Spend on the standard, not on marketing. The guide below covers the choices that actually change performance.

Both carry 4K and high refresh rates, so often it comes down to the ports on your devices. DisplayPort is common on PC graphics cards and gaming monitors and handles very high refresh rates well. HDMI 2.1 is standard on TVs and consoles and supports 4K at 120Hz. Use whichever matches both ends, and make sure the cable is rated for your resolution and refresh rate.

HDMI 2.1 is the one to look for if you want 4K at 120Hz or features like variable refresh rate (VRR) for tear-free gaming. Older HDMI 2.0 cables top out at 4K 60Hz. A cable labelled "Ultra High Speed" meets the 2.1 bandwidth requirement — that label matters more than the price.

Cat 6 handles gigabit speeds and is the sensible default for home gaming and networking. Cat 6a adds headroom and better shielding for longer runs. Cat 8 exists for data-centre use but is overkill for a home line. For gaming, the bigger win is simply going wired instead of Wi-Fi for lower, more consistent latency.

Within normal lengths, a properly rated cable performs to spec. Very long runs can lose signal — especially for high-bandwidth video — so buy a cable just long enough to reach without excess slack. For long video runs over several metres, look for cables explicitly rated for that distance and resolution.

USB-C is the modern reversible connector found on newer peripherals, phones and laptops; USB-A is the older rectangular plug still used widely. Thunderbolt uses the USB-C shape but adds much higher bandwidth for displays and fast storage. Check the cable's speed rating and whether it supports power delivery if you plan to charge through it.

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How to Choose the Right Cable

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