### The Updated 140W Power Adapter for Apple’s 16-inch MacBook Pro: Design Modifications and Compatibility Concerns
Apple’s latest introduction of the 16-inch MacBook Pro equipped with the M5 Pro and M5 Max processors has drawn attention not only to its capabilities but also to a subtle yet crucial alteration in its power adapter. The 140W power adapter, which is standard with this model, has experienced a design change that affects accessory compatibility.
#### Revised Duckhead Design: A Major Modification
Early users of the new MacBook Pro have observed that the duckhead design of the power adapter has been modified. A disassembly analysis by ChargerLab confirmed this change, which has been supported by many customer reports online. Historically, Apple power adapters with detachable AC wall adapters utilize a C7 connection, identifiable by a shape reminiscent of a pair of spectacles. However, the new 140W adapter presents a more symmetrical connection, deviating from the traditional design.
#### Accessory Compatibility Issues
The design update has resulted in compatibility challenges with some accessories. Specifically, Apple’s $19 Power Adapter Extension Cable, a fundamental tool for users needing additional length, is not compatible with the new duckhead shape. This extension cable has been part of Apple’s accessory offerings since before it was excluded from the package with the first Touch Bar MacBook Pro a decade ago.
Moreover, users have noted that the Apple World Travel Adapter Kit, which is no longer available for purchase on Apple’s website, also does not function with the redesigned adapter. While Apple has issued a support document detailing the World Travel Adapter Kit, the incompatibility with the new power adapter raises concerns for frequent travelers and those who depend on this accessory.
It remains unclear whether the standalone 140W USB-C Power Adapter, which retails for $99, has embraced the new design. Apple continues to indicate compatibility with the Power Adapter Extension Cable for this product, leaving some uncertainty regarding its design status.
### Conclusion
The design modification in the 140W power adapter for Apple’s 16-inch MacBook Pro underscores the evolving nature of technology and the potential compatibility challenges that can emerge with new designs. As users adjust to these changes, it is vital to remain aware of which accessories are compatible with the new power adapter to ensure optimal functionality.