Maximum Length for USB Cables & How to Extend Them Further?

maximum length of usb cables

Everyone with a personal computer has had the experience of plugging something into a USB cable and being told what to do. Even after computers become obsolete, people will hold on to their USB cables, using them with all devices that run on electricity. Because it’s so simple, people use USBs more than ever.

We use them for short USB-based dashes, such as battery charging, connecting an external pen drive, or plugging in a telephone. But what can you do if you have a USB security camera in your accounts? Then your standard USB cable connecting is not likely to be powerful.

To stretch your cable to the max to even a few yards ahead, you’ll need to extend your cable length considerably. Afterwards, we shall take a closer look at USB cables, discussing the polarity, extension limit, and even a few methods that can allow you to stretch your cable further. So go on, sit back and relax as we take a look!

USB Cables 2.0 vs. 3.0 vs. 3.1

Let’s talk about different kinds of USB cables first. Why? Because different kinds of USB cables have different maximum lengths. In other words, if you’re extending a cable, you must first know what type you are working with. USB 2.0, which released in 2000, is one such example.

You won’t find it on new devices, but many older devices still use USB 2.0. USB has a transfer rate of 480 Mbit/s, which is fast. It was adequate for transferring some documents and songs, but not for movies. As more and more people distributed more massive files, there was a demand for a faster standard.

USB 3.0 allowed your computer to transfer data at five times the rate of USB 2.0, with better power. USB 3.0 can supply 20 watts of electricity, compared to 7.5 watts for USB 2.0. This allows for much more versatility in the number of devices you can use it with.

For example, older USB 2.0 external hard drives are supplied with a power cable to define to clients under the age of twenty-. Newer USB 3.0 and USB-C hard drives can connect using USB power while displaying older interfaces. Many new device types supports USB 3.0

USB 3.1 was released in 2013. It is technically an upgraded version of USB 3.0. It has the same 10 watts of power but doubles the data transfer rate to 10 gigabits per second. The drive also keeps up with 10 gigabit Ethernet ports. Also, the fast read-write speed lets you take full advantage of an external SSD. USB 3.0 ports are quite typical today.

Three types of USB can use a small or standard connector, depending on which one you use. In particular, only USB 3.0 and USB 3.1 Ports can feed the smaller Type-C connector. By accessing your system menu, you will want to find out whether you have that small connector on a PC or Mac. On other devices, checking the manual is the only way to get this information.

USB Cables Length Limits

Now that we understand the differences between USB type-A, type B, and type-C cables, it’s time to discuss how short cables are. A USB 2.0 cable is typically about five meters (about 16 feet) long out of the box. Of course, this intended length is rarely met, and over time you’ll need an extension cable or connector to accomplish your goals.

Connecting a 5-meter cable to a 10-meter cable is fine, but this 5-meter limit is still in effect. In other words, you can stretch a 6-foot extension cord into a 10-foot extension cord, and everything will be fine. The total length of the extension cord is, therefore, 16 feet. However, connecting a 10-foot extension cord to a 10-foot extension cord will not work. The total length will be 20 feet, which is longer than USB 2.0.

USB 3.0 and USB 3.1 connection types are the same, which is a bit unusual. In principle, there is no actual maximum. However, the data transfer speed will begin to degrade if you go beyond about three meters (about 10 feet). The longer the cable, the lower the speed and the less power it will have.

This gives you a little dominance if you’ll have a messy setup while you’re doing a broadcast. For example, suppose you’re sending out a group feed with multiple HD surveillance cameras communicating with one another. In that case, you’ll have some freedom if you do an infrastructure task.

On the other hand, you might have an issue if a 4K camera with two-way audio is connected to that device. And If the camera requires a power cable, you may have trouble with it.

How to Extend USB Length

You can use an extension cable to run longer. However, the length is not enough. How can you extend the cable length? Second, running the required cable with a powered device is possible. There are two styles of doing this.

First, You can use an active extension cable, also called a repeater cable. Second, you can use a powered USB hub. So, which of these methods will work best for your network? Here is a brief description of how they work.

Active Extension Cables

Active extension cables are like standard extension cables with the difference that they are outfitted with electronics that increase their electrical transfer abilities. This enables you to extend a cable farther than its rating permits. An external alternating current converter powers them, and you can use them only with a specific adapter. 

When shopping, it’s best to seek out one that includes a power source. Otherwise, you will have to get a power source on your own. This does not need to be a great deal of power. A simple USB power supply is adequate.

USB 2.0 cables can be stretched to a distance of 30 meters (or more than 98 feet). However, USB 3.0 and 3.1 cables can only be stretched to 18 meters (about 59 feet). This assumes that the first cable is active. If it’s not, the maximum length of USB 2.0 drops to 25 meters (or about 82 feet).

The maximum USB 3.0 and 3.1 cables length will be up to 15 meters (approximately 49 feet). The cable’s initial length also affects your maximum length: when your initial cable is only six feet long, a 10-foot extension cable will not work. You’ll need either a 10-foot initial cable or a shorter extension cable.

USB Hubs

Devices that connect multiple USB devices are USB hubs. The hub is typically connects into your computer, while the devices connected to it plug into its other ports. Hubs will allow you to expand your computer system’s built-in USB port for USB devices. They can also be incorporated to extend the range of your wired USB connection.

While this allows for several connections, if a USB hub is not strong enough, it may not increase the strength of the signal. All modern USB hubs include a power source. However, authentic performance shouldn’t be all that limiting.

Aside from the active kind, the initial cable and the total length controls the same for any USB cable. After connecting the cable into a powered hub, the maximum total length is less than 25 meters for USB 2.0, 15 meters for USB 3.0, and 10 meters for 3.0.

Your subsequent USB cables may differ in length from the preceding one; however, they will not be longer than the original one. There’s also an additional restriction with a USB hub. A USB-linked instrument won’t operate as a dumb-powered extension cable.

The USB standard allows you to attach 7 tiers of device. Adding up the numbers on the lower and upper ends, you can connect 5 hubs between each device.

What if I Need to go Further Than 30 Meters?

So, what if you need to run a USB connection longer than 30 meters? The good news is that you have another option available, with one catch. This method, named USB over Ethernet, is just what it sounds like. You convert the USB signal to an Ethernet signal, then convert it back to a USB signal at the other end.

Depending on your activity, you may or may not need a USB to Ethernet adapter, and quite possibly two. In most cases, you will also need software to install the connection. Once this is complete, you will be in a position to transmit a USB signal as far as 100 meters (328 feet).

In theory, It can go much further by using an Ethernet signal booster, it can go much further. But at that point, it is best to use something other than USB.