Your Cool Home is supported by its readers. Please assume all links are affiliate links. If you purchase something from one of our links, we make a small commission from Amazon. Thank you!
To daisy chain monitors, you need the right ports on your graphics card, the correct cables, and displays that support the connection standard you plan to use.
Daisy chaining is a fantastic way to set up a multi-monitor workspace without a mess of cables running back to your PC.
If you’re wondering what you need to daisy chain monitors, the short answer is that both your computer and your monitors must support DisplayPort 1.2 or newer, or Thunderbolt.
This isn’t something you can do with HDMI, so knowing your hardware is the first crucial step.
In this post, we’ll break down everything you need to daisy chain monitors, from the cables to the ports, and even how to avoid common pitfalls.
Let’s get your desk setup sorted out.
What You Need To Daisy Chain Monitors: The Core Requirements
To successfully daisy chain monitors, you need a few key pieces of hardware working together.
The process relies on a technology called Multi-Stream Transport, or MST, which is built into certain DisplayPort and Thunderbolt connections.
Without MST, your monitor will simply act as a dumb display, and the signal will stop at the first screen.
So, to daisy chain monitors, you must verify that every single monitor in the chain has at least one DisplayPort output, not just an input.
1. A Graphics Card With DisplayPort 1.2 Or Higher
Your computer’s graphics card is the starting point of the entire chain.
To daisy chain monitors, your GPU must support MST, which is standard on DisplayPort 1.2 and all newer versions.
Most dedicated graphics cards from NVIDIA and AMD made in the last decade support this feature.
However, if you’re using a laptop with only an HDMI port and no DisplayPort or Thunderbolt, you won’t be able to daisy chain monitors at all.
Check your GPU’s spec sheet online and look for “MST” or “Multi-Stream Transport” support.
This is the first thing you need to daisy chain monitors, and missing this means the whole plan falls apart.
2. Monitors With Built-In MST Hubs
Not every monitor on the market supports daisy chaining.
You need to daisy chain monitors that explicitly have a DisplayPort Out port.
This port is the key that allows the video signal to pass through the first monitor and continue to the second one.
Many business-class monitors from Dell, LG, and Lenovo include this feature, but many budget gaming monitors do not.
Look at the back of your monitor and check for a port labeled “DP Out” or a DisplayPort icon that isn’t next to the input.
If you only see one DisplayPort, you can’t use that monitor as a link in the chain.
You’ll also need to daisy chain monitors that have the same or compatible resolutions and refresh rates for the best experience.
3. The Right DisplayPort Cables
You can’t use just any old cable when you want to daisy chain monitors.
You need certified DisplayPort cables that are rated for the bandwidth you’re using.
For a standard 1080p setup, a DisplayPort 1.2 cable is fine.
But if you’re trying to daisy chain monitors at 4K resolution or with high refresh rates, you’ll need DisplayPort 1.4 or even 2.0 cables.
These cables ensure that the signal travels cleanly from your PC to the first monitor, and then out of that monitor to the next one.
Don’t skimp on cheap cables, as they can cause flickering or a complete loss of signal in the middle of the chain.
4. Thunderbolt 3 Or 4 For Laptops and Macs
If you’re using a modern laptop, you’ll likely use Thunderbolt to daisy chain monitors.
To daisy chain monitors via Thunderbolt, you need a laptop with a Thunderbolt 3 or Thunderbolt 4 port.
This is a USB-C shaped port, but it has a lightning bolt icon next to it.
Thunderbolt carries both power and video data, allowing you to connect two monitors to a single port.
You’ll also need Thunderbolt-certified cables, which are more expensive than standard USB-C cables.
Many docking stations also support daisy chaining, but you still need to daisy chain monitors that have the right ports on the back.
How To Daisy Chain Monitors: A Step-by-Step Setup
Now that you know what you need to daisy chain monitors, let’s talk about how to physically connect them.
The process is straightforward, but logical order matters a great deal for the signal to pass correctly.
Here is the exact way to daisy chain monitors, so you don’t end up with a black screen on your second or third display.
Step 1: Connect Your PC To The First Monitor
Plug your main DisplayPort cable from your graphics card into the “DP In” port of your first monitor.
This is the monitor that will act as the primary display.
This connection carries the video signal into the first monitor.
Step 2: Connect The First Monitor To The Second Monitor
Take a second DisplayPort cable and plug it into the “DP Out” port on your first monitor.
Then, connect the other end of this cable to the “DP In” port on your second monitor.
This is the core of what you need to daisy chain monitors properly.
It’s a direct handoff of the video signal from one screen to the next.
Step 3: Continue For Additional Monitors
If you’re adding a third monitor, simply repeat step two.
Connect a cable from the “DP Out” of the second monitor to the “DP In” of the third monitor.
Most graphics cards and MST hubs support up to four monitors in a single chain.
However, remember that the total resolution and refresh rate are limited by the bandwidth of the source port.
Common Issues When You Daisy Chain Monitors
Even if you have everything you need to daisy chain monitors, you might run into a few hiccups during setup.
It’s not always plug-and-play, and some settings require a quick tweak in your operating system.
Here are the most frequent problems and how to solve them.
1. MST Mode Is Disabled On The Monitor
Many monitors require you to manually enable MST in their on-screen display menu.
When you daisy chain monitors, check the monitor’s OSD and look for a setting called “DisplayPort 1.2” or “MST” and make sure it’s turned on.
If it’s off, the monitor will ignore the signal coming into the “DP Out” port.
2. Incompatible Resolution Or Refresh Rate
You need to daisy chain monitors that can share bandwidth.
If you have one 4K monitor and one 1080p monitor, the system will often run both at the lower resolution or drop the refresh rate to stabilize.
For the best experience, try to use monitors with identical specs when you daisy chain monitors.
3. Cable Length Limitations
DisplayPort cables have a maximum recommended length of about 3 meters (10 feet).
If your cables are too long, the signal degrades.
When you daisy chain monitors, keep the cable runs as short as possible to maintain signal integrity.
So, What Do You Need To Daisy Chain Monitors?
To daisy chain monitors, you need a GPU with DisplayPort 1.2 or Thunderbolt, monitors with DP Out ports, and compatible cables.
It’s a simple concept that requires specific hardware on every link of the chain.
Once you confirm your equipment supports MST, the setup is easy and saves you from dealing with multiple cables running back to your PC.
You can daisy chain monitors to create a clean, productive workspace in just a few minutes.
Just remember to enable MST in your monitor settings, and check your resolution to make sure everything looks sharp.
Now you know exactly what you need to daisy chain monitors and how to put it all together.