Do HDMI splitters work with 4K?

So you just bought a new 4K TV. It’s shiny, big, and you can’t wait to watch all your favorite shows in glorious ultra high definition. But then it hits you — you want to connect the same streaming device to two TVs. Or maybe you want to mirror a 4K signal to a projector and a TV at the same time. The solution? An HDMI splitter! But wait… do HDMI splitters actually work with 4K?

Great question!

Let’s break it down in a fun and simple way.

What’s an HDMI Splitter?

An HDMI splitter is a small device. It takes one HDMI input and splits it into two or more outputs. Basically, it lets you send the same signal to multiple screens.

Imagine you’re at a party. You’re DJing. And you want the same music playing in the living room and the backyard. An HDMI splitter is like a speaker splitter for your screen’s video and audio.

But What About 4K?

Here’s where things get a little techy — but don’t worry! We’ve got you.

4K means super sharp video. It’s four times the pixels of your old Full HD (1080p) screen.

That means:

  • More data needs to travel through the HDMI cable
  • The splitter needs to support the higher resolution
  • Your cables need to be strong enough (yes, seriously!)

The Answer: Yes, But…

Yes, HDMI splitters can work with 4K. But not all of them can.

You need to make sure the splitter is labeled as:

  • 4K compatible (look for 4K @ 60Hz or 4K @ 30Hz)
  • Supports HDCP 2.2 (this is digital copy protection required for many 4K streaming devices)
  • Uses HDMI 2.0 or higher

If your splitter doesn’t support these things, your video may:

  • Downscale to 1080p
  • Not display at all
  • Lag or stutter

So it’s not just about the splitter — your cables and devices must also be 4K ready!

What’s This HDCP Thing?

Think of HDCP as a bouncer. It stops people from copying digital video content. Most 4K content, like Netflix or Disney+, needs HDCP 2.2 or higher. If your splitter doesn’t have this, you might get errors like “No Signal.”

Pro tip: Always check for HDCP support when buying a splitter for 4K use.

Okay, So Which One Should I Buy?

There are a lot of options out there. Here’s what you should look for:

  1. 4K @ 60Hz (for the smoothest video)
  2. HDMI 2.0 or newer
  3. Supports HDR (if you want punchy colors)
  4. HDCP 2.2 or higher

Bonus: Some splitters also come with audio extraction ports. That means you can plug in speakers too!

Can I Use a Cheap One?

You can try a cheap one, but be prepared:

  • Video quality might drop
  • There could be compatibility issues
  • Your devices might not sync correctly

If you care about high-quality 4K, don’t go too cheap. A good splitter usually costs between $25–$60, depending on features.

What About Gaming?

Gamers — listen up!

If you’re playing on a PS5 or Xbox Series X, make sure the splitter supports:

  • 4K @ 60Hz or 120Hz
  • Low latency
  • HDCP 2.3, if possible

Otherwise, your game may look worse or feel a bit slow. That’s not cool when you’re trying to get that headshot!

Final Thoughts

HDMI splitters can work beautifully with 4K — but only if you get the right one.

Just remember:

  • Check for 4K @ 60Hz
  • Make sure it has HDCP 2.2+
  • Use quality HDMI cables (at least HDMI 2.0)

Do that, and you’ll be enjoying your ultra HD content across multiple screens in no time. No blurry pixels. No frustrating errors. Just pure, beautiful 4K magic!

4k screens, home theater, hdmi connection[/ai-img>

Now grab that popcorn and enjoy the show — in 4K, everywhere!

Lucas Anderson
Lucas Anderson

I'm Lucas Anderson, an IT consultant and blogger. Specializing in digital transformation and enterprise tech solutions, I write to help businesses leverage technology effectively.

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