Whatever the cable needs for fast charging, it seems to have good build quality. I will come back if something goes wrong later, until then, 5 stars.

Edit: 10 months later (gradually happened), it makes borderline contact, you have to play with the cable until it feels right.

I bought the cable today (13/8/19). It is twice as thick as the genuine Samsung one, which started falling apart after 2 years. It reminds me of HDMI! It connects much better to mobile phones and it is so high-quality that it made me look for the Nedis company! There is no reason to spend more money on something else... Also, the cable is data-enabled. Don't hesitate!

Update 21/11/19: No malfunctions or damages. Excellent cable.

Update 9/1/20: One of the two cables I bought started having interruptions when I move it. Maybe it's slightly damaged inside.

It's not a cable that you can easily use your phone while charging. It's very rigid and not flexible. It tires you out.

Update 12/1/20: Both cables started having interruptions. They're going in the trash.