I ordered 4 different USB-C cables to test which one can offer USB3+ speed. Only this one had very fast transfer speed. To my phone the write was stable at 220mb/s. Strangely the read was slower at 120mb/s, but still good.
The other 3 other cables even if described as USB3.1 and 3.2 were only 35mb/s.
Only negative is the cable is quite bulky, which also means very durable. But it doesn't flex easily.