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Is it okay? I tried looking for 850nm but most shops don't mention wavelength so I'm a bit confused.
It's ok for S+85DLC03D but why don't you use the DAC ?
I must say It was quite disappointing to hear that DAC is copper :< Because I really wanted to use optical interface for the first time in my life
Also well S+85DLC03D isn't really that expensive. I don't feel like I bother to sell/return them. Plus I guess now I more or less understand optical cables basics so there's always educational value and it's home lab after all.
So I guess I'll just try both, try to benchmark latency (I heard some urban legends long time ago from friend admin that optical/active short distance connections may suffer higher latency than passive ones because there's one more layer) because I'd like to use it for SSD NAS. If there won't be absolutely any difference in random i/o I guess I'll just use one as 1.25g link to RB2011 replacing current gigabit and another one between switch and CCR1009 for now.
Thanks for help everyone