WhatCable: Unveiling the Secrets of Your USB-C Cables
In the world of technology, where speed and performance are paramount, having the right tools to assess your USB-C cables can be a game-changer. Enter WhatCable, a free Mac app that takes the guesswork out of your USB-C cable performance. This innovative tool, developed by Darryl Morley, leverages the data your Mac already collects about connected devices, providing a comprehensive insight into the capabilities and limitations of your USB-C cables.
What makes WhatCable particularly intriguing is its ability to reveal information that Apple doesn't typically share with users. By reading the data your Mac collects through its port controller chip, WhatCable can tell you more than just the claimed specifications of your cables. It can reveal the actual negotiated connection speed, Thunderbolt link speed, and live voltage and current at each port, offering a detailed picture of your cable's performance.
One of the standout features of WhatCable is its ability to distinguish between different types of cables. For instance, it can differentiate between a lightweight Satechi cable, which reports USB 2.0 speeds but supports 100W charging, and a higher-end cable like the 10Gbps, 100W Supercalla cable, which may be wearing out despite its impressive specifications.
WhatCable's capabilities extend beyond speed and charging. It can also identify bottlenecks in your system, such as a cable that claims to support 10Gbps but fails to deliver the expected performance when connected to a fast SSD. This level of detail is something that even a dedicated $8 cable tester might struggle to provide.
Darryl Morley's WhatCable is not the first of its kind. A similar app, USB Connection Information, has been available for a year. However, WhatCable stands out for its free nature and the commitment of its developer to keep it that way. The Pro version, available for £9.99, adds real-time power monitoring, diagnostics, and a terminal view, but the core functionality remains free.
Morley's dedication to the project doesn't stop at WhatCable. He has also developed WhatPort, a simpler app that monitors the activity of each of your Mac's USB-C ports, including power, data, and video. However, due to the varying hardware and API limitations on different operating systems, WhatCable is currently limited to Mac users.
Looking ahead, Morley is working on a Linux port of WhatCable, and he welcomes any workarounds that users might suggest for other platforms. His GitHub page is a hub for updates and contributions, reflecting his commitment to the project's ongoing development.
In conclusion, WhatCable is a powerful tool for anyone looking to get the most out of their USB-C cables. It offers a level of detail and insight that is hard to come by elsewhere, and its free nature makes it accessible to a wide range of users. As Morley continues to refine and expand the app, it promises to become an indispensable tool for tech enthusiasts and professionals alike.
