60W is fine unless you're pegging your CPU/GPU constantly.

For anyone reading this thread, using a 60W cabled for a >60W load is NOT FINE.

Quote: "60W is fine unless you're pegging your CPU/GPU constantly."

Translation: Your house will only burn down if your laptop goes into a busy loop.

"MacBook Pro (15-inch, Late 2016) draws up to 85W. Use the Apple USB-C charge cable that came with your MacBook Pro, or a certified USB-C cable supporting 5A (100W), to power and charge your MacBook Pro (15-inch, Late 2016) at its full capability.

"MacBook Pro (13-inch, Late 2016, Four Thunderbolt 3 Ports) and MacBook (13-inch, Late 2016, Two Thunderbolt 3 Ports) draw up to 60W."

…

"You should not connect any power supply that exceeds 100W, as it might damage your Mac.

"Using a power supply that doesn't provide sufficient power can result in slow or delayed charging. It's best to use the power supply that came with your Mac.

"MacBook Pro can receive a maximum of 60W of power through the Apple USB-C VGA Multiport Adapter or USB-C Digital AV Multiport Adapter. For the best charging performance on MacBook Pro (15-inch, Late 2016), connect the power supply directly to your Mac."

Source: Apple https://support.apple.com/en-us/HT207256

You're incorrect. Load is negotiated during cabling process.

Sure a bad USB-C cable that doesn't negotiate properly may be a danger, but likely the Macbook simply won't charge on such a cable.

I trust Apple knows what they're dealing with (in regards to poor 3rd party cabling) and not end up like a Note7 situation.

But the charger will output 87W, the concern is whether it is safe to put that through this cable.

Yes it is designed for the MacBook not the Pro.

This is a problem, but only for users of the 15" model. The 13" pro (both versions) will only draw 60 watts.

https://support.apple.com/en-us/HT207256