Question about FiiO X3 2nd gen

You want to convert a digital signal into an analogue stereo signal. A cable carrying this conversion is incomplete or does not work. That's why you haven't found anything. Of course a cable exists on aliexpress, eBay and Amazon. Why doesn't it exist at a reputable retailer? You can't just connect the two devices with just one cable! You need a converter.

If the device supports it, it also works. This is also the case here.
And about the cable: Is it listed under accessories?
FiiO L21 adapter cable

According to my research, such a cable is not offered at Digitec.

PS: It is not necessary to ask the question several times for different products.