Older DAC connection to my Macbook??

It has optical/Toslink. I think I need a cable that has USB at one end and Tousling at the other? Is that possible? Do those cables exist?

I understand on the Dac i use the toslink input but do i need a special cable? Is there a toslink to USB cable?

Thank you for the replies. The last one seems the most likely. I guess that's why those Dac prices seem to drop so much. Features and current connections are very important.

I have a pretty nice rig. Parasound JC-1's with JC-2 preamp. I have an Exogal Comet plus DAC and Salk Song 3 speakers. My Arcam FMJ cd 23 cd player is getting up there in age so I saw an Esoteric transport and Dac for sale on here. The Esoteric stuff is 10 years old but very expensive and highly regarded at the time of release. I keep hearing about the 'detail' of Esoteric gear so I guess i want a piece of that. I would also like SACD capability which i don't have. My system sounds pretty musical now.
 

I haven't bought the Esoteric gear. I don't believe I want to get into having an extra adapter just to connect it.