If you check the archives, I think you'll find many of us recommend the VDH Opticoupler.
Recommendations on Toslink cable
Hi, I am planning to buy a toslink cable, the amount I am ready to spend is under $80. If you've had experiences with this kind of cables, I would very much appreciate your suggestions. I am planning to use it between Slim Device Squeezebox2 and Benchmark DAC1. Thanks in advance!