If you’re planning to buy an HDMI cable (“køb HDMI” in Danish), you’ll quickly notice that not all HDMI cables are the same. While they may look identical, differences in version, speed, and features can significantly affect your video and audio quality—especially for modern TVs, gaming consoles, and home theater systems.
This guide will help you understand what to look for before purchasing an HDMI cable so you don’t waste money or end up with compatibility issues.
What is an HDMI Cable?
An HDMI cable (High-Definition Multimedia Interface) is used to transmit high-quality digital video and audio between devices such as:
- TVs and streaming devices
- Gaming consoles (PlayStation, Xbox, etc.)
- Laptops and monitors
- Blu-ray players and sound systems
It replaces older analog cables and delivers a much cleaner, sharper signal.
Different HDMI Versions Explained
When buying HDMI cables, you’ll often see labels like HDMI 1.4, 2.0, or 2.1. These versions matter more than most people realize.
HDMI 1.4
- Supports 1080p and basic 4K (limited)
- Suitable for older TVs and devices
- Not ideal for gaming or high refresh rates
HDMI 2.0
- Supports 4K at 60Hz
- Good for streaming Netflix, YouTube, and standard 4K TVs
- Most common “budget-friendly” option
HDMI 2.1 (Best choice for modern setups)
- Supports 4K at 120Hz and 8K resolution
- Ideal for gaming (PS5, Xbox Series X)
- Includes advanced features like:
- VRR (Variable Refresh Rate)
- ALLM (Auto Low Latency Mode)
- eARC (enhanced audio return channel)
If you’re buying a cable today for a new TV or console, HDMI 2.1 is usually the safest future-proof choice.
Important Factors When Buying HDMI Cables
1. Cable Length
- Short cables (1–2 meters): Best signal quality
- Long cables (5–10+ meters): May require higher quality or active cables
2. Build Quality
Look for:
- Braided or reinforced cables for durability
- Gold-plated connectors (optional but helpful for corrosion resistance)
3. Certified HDMI Cable
Always check for “Ultra High Speed HDMI Certified” for HDMI 2.1 support. This ensures real performance, not misleading labels.
Common Mistakes to Avoid
- ❌ Paying too much for “premium” cables with no real benefit
- ❌ Buying old HDMI versions for modern devices
- ❌ Ignoring HDMI 2.1 for gaming setups
- ❌ Assuming all HDMI cables support 4K or 120Hz automatically
Which HDMI Cable Should You Buy?
Here’s a quick recommendation:
- Basic TV / streaming: HDMI 2.0 is enough
- Gaming / PS5 / Xbox Series X: HDMI 2.1 recommended
- Home theater setup: HDMI 2.1 with eARC support
- Long-distance setups: Active HDMI cables or fiber HDMI cables
Final Thoughts
When you “køb HDMI,” the most important thing is matching the cable to your device’s capabilities. You don’t always need the most expensive option, but choosing the right version ensures smooth video, clear audio, and future compatibility.
