Serial port cable

[z4v4l]

So, I've found threads on the forum that say that the serial port cable being sold by Pine64 is not fully compatible with the Pinebook Pro.
Is that still the case?
Is there somewhere I can buy a compatible serial port cable?
Or do I have to make one myself?

Should works :-)

it has 5V on IO lines! whereas it's supposed to be 3.3V, farthermore, rk3399 uarts want 3.0V (max 3.15)! so it's a two fold problem and indefinitely overlooked. the adapter doesn't work properly and causes instabilities, which is no wonder, given such a voltage mismatch.