Does a USB Splitter Affect Performance?

USB splitters are handy if you want to connect multiple external devices to your computer simultaneously. But does a USB splitter affect performance?

Yes, using a USB splitter can affect the performance of the devices you connect because they share the same bandwidth available to the splitter itself, which may slow specific devices down.

Read on to find out everything you need about USB splitters, how to use them, and how to improve their performance.

1. What’s the Point of a USB Splitter?

As the name suggests, the main point of a USB splitter is to split one USB port into several USB lines.

As a result, it increases the number of devices you can connect to a single USB port, enabling you to connect multiple external devices to the same computer.

You can attach the USB end of the splitter directly to your computer before connecting the interface to various external devices, be it mice, keyboards, printers, scanners, hard drives, or practically any other external device you can think of.

Some people use a USB splitter to prevent their computer from overloading, which is undoubtedly one of its most prominent features.

Given its potential use for your computer, a USB splitter can be a handy tool. But how does it differ from a USB hub?

2. What’s the Difference Between a USB Hub and a USB Splitter?

A USB hub – often referred to as a USB port – essentially looks like a mini power strip. Instead of having multiple USB adaptors connected by wires, it consists of a hub that allows you to plug various devices in simultaneously.

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Like a splitter, a USB hub allows you to connect multiple devices to your computer.

Some hubs also come with HDMI adaptors and Ethernet ports to connect to wired internet.

Ultimately, the main difference between the two is that USB hubs have more features than splitters. They typically support various interfaces, offer transfer speeds, and even come with their power supply.

For this reason, USB splitters are cheaper than USB hubs. 

They are a viable option if you’re looking for a simple and affordable way to connect multiple devices to your computer simultaneously.

3. What to Look for in a USB Splitter?

The best way to ensure that your USB splitter doesn’t affect the performance of your computer is to buy one with the required features to perform well. When purchasing a USB splitter, some of the key features you should look for include the following:

  • Durability – Make sure that the splitter you choose is covered with high-quality material like nylon or PVC. Flimsy, cheap cables you can order online don’t perform well and significantly affect your device’s performance.
  • Compatibility – For a USB splitter to work, your laptop or computer must recognize and support it. While most splitters are compatible with iOS and Windows, checking the device’s compatibility before buying it makes sense.
  • The number of lines – USB splitters come with different numbers of lines, typically ranging from 2-6. The more lines your splitter has, the more devices it can connect. But be careful – connecting six external devices at the same time will likely slow your computer down considerably.
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So, as is the case when buying any technology for your computer, you need to make sure that you do your research and buy a good-quality USB splitter. 

Doing so means that it is less likely to affect the performance of your computer when you connect multiple external devices simultaneously.

4. Are USB Splitters Safe to Use?

Provided you buy a USB splitter from a reputable company, it is perfectly safe to connect multiple external devices to your computer.

As mentioned above, you must ensure that the splitter you choose is durable, compatible, and in line with your expectations before buying it.

Nothing in the design of a USB splitter can damage your device, but you need to be mindful of the external devices you connect to your computer via the splitter.

If you attach a corrupted external source to your PC, it could present a problem.

But ultimately, if you’re looking for an easy and affordable way to connect several external devices to your laptop or computer, a USB splitter is the ideal solution and is perfectly safe.

5. Who Produces the Best-Performing USB Splitters?

The best-performing splitter at an affordable price is the USB 2.0 A Male To 2 Dual USB Female Jack. These are available at Walmart, making them easily accessible, and the review rating of nearly five stars is testimony to a good product.

Check out the splitter and see if it fits your needs.

You should also be mindful of the price of USB splitters – if the cable you’re interested in is only $1-$2, it could be a sign that it’s a cheap foreign import that could do more harm than good to your PC or laptop.

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Remember, the quality of the USB splitter that you buy will affect its performance, so it’s worth spending a few bucks extra to purchase a splitter that comes with good reviews.


The bottom line is that a USB splitter does affect the performance of your PC or laptop, particularly when you connect multiple devices simultaneously.

However, researching and purchasing a durable and reliable USB splitter can ensure that it performs to your expectations and is unlikely to cause any problems.