This Free Mac App Can Explain Why Your USB-C Cable Is Charging So Slowly


Source: David Nield / lifehacker.com

Understanding Modern Cable Tech Made Easy

When it comes to modern gadgets, it’s not uncommon to find yourself overwhelmed by the sheer number of ports and cables that come with them. From USB-C to HDMI, DisplayPort, and Thunderbolt, it’s easy to get lost in the jargon and end up with a cable that doesn’t quite live up to its potential. However, help is at hand in the form of WhatCable, a free Mac app that takes the complexity out of cable tech and makes it easy to understand.

This Free Mac App Can Explain Why Your USB-C Cable Is Charging So Slowly
Source: lifehacker.com

WhatCable is designed to analyze the cables attached to your Mac, providing you with a clear breakdown of what each cable can do and how it compares to your device’s capabilities. This is especially useful when it comes to charging your MacBook, as WhatCable can help you identify why your laptop might not be charging as quickly as it should be. By providing detailed information on charging speed, data transfer rate, and the capabilities of your cables, WhatCable is an essential tool for anyone looking to get the most out of their gadgets.

This Free Mac App Can Explain Why Your USB-C Cable Is Charging So Slowly
Source: lifehacker.com

But what exactly is it about modern cables that makes them so complicated? To understand this, we need to look at the three key elements that make up any connection: the port on the device you’re connecting to, the cable itself, and the port on the device you’re using. For the best results, all three of these elements need to support the same standards, whether that’s USB, HDMI, or Thunderbolt. If they don’t, you might not get the optimum results you’re looking for, or the setup might not work at all.

Unfortunately, simply finding a cable that fits a port isn’t enough to guarantee everything will work as it should. Both cables and ports come with supported standards that you need to weigh, like the various flavors of USB (we’re up to USB 4.0 version 2 now). The most common port you’ll see on laptops and phones today is USB-C, but this is only the start of the story. USB-C ports can also support Thunderbolt and DisplayPort protocols, as well as a variety of USB speeds – you need to check the device spec for details. Even similar-sized ports on the same device may be configured differently.

So, how can you ensure that you get the best possible results from your cables? The key is to determine what the ports on your computer or phone are capable of, and then find a cable that supports the same standard. This might sound obvious, but it’s surprising how many people overlook this crucial step when buying cables. Be careful when reviewing cable listings before buying, both in terms of specs and length – cables beyond one meter (a little over three feet) typically require extra tech to support the highest data speeds, and will therefore usually be more expensive.

But what about when manufacturers change their standards? This can happen regularly, with some companies adopting new standards promptly and others waiting a while to implement them. The short version is, don’t rush cable buying, or think that all cables and ports are the same. Spend a few extra minutes analyzing the relevant specs in detail, and it’ll pay off.

So, how does WhatCable fit into all of this? The app is designed to take the complexity out of cable tech, providing you with a clear breakdown of what each cable can do and how it compares to your device’s capabilities. By launching WhatCable, you’ll see a menu bar icon that shows up when you connect a cable. Clicking this icon will give you detailed information on the charging speed and data transfer rate (where applicable), as well as a breakdown of what the cable can do.

But that’s not all – WhatCable also looks at the e-marker inside a cable, which is essentially its digital ID, advertising its capabilities to the computer it’s plugged into. If there are discrepancies between this e-marker and commonly followed technology standards, then you’ll see an orange flag. It’s not necessarily saying the cable is a fake, but just alerting you to something that doesn’t quite seem right.

In short, any details that the cable is reporting to macOS will be shown by WhatCable, and you should see a significant difference between cheap and limited cables and the more expensive and powerful ones – which will likely be reassuring if you’ve paid extra for them.