Van Den Hul optical van have enough bandwidth to even do DSD, great cable but hard to find in short length.
I tried the VhH and they were great but I didn't think they made the short 3.5mm to square cables that people want for Mojo.
Often the companies that make those 3.5mm to square cables are there for early niche market and not very reputable or good quality.
One of the big issues is that people often neglect the tip of the TOSLINK cable. It can easily get scuffed with micro scratches, as shown on my photos earlier.
A lot of companies put a glass or hard plastic "lens" cap on the tip to reduce the scratching, but that protrudes out of the square connector and gets scuffed as well.
I found the TOSLINK optical is one cable where the build quality and the dust cap is very important. At least the effect is obvious because the music either doesn't lock on or start skipping.