DAC will have less latency, but the difference is likely small. 1/10th, but if your latency is already <1ms then you probably don’t care.
Heat/power is another difference. Copper SFP modules tend to use a lot of watts and dissipate a lot of heat. DACs are very, very low wattage. You can probably save 4 watts on that link by switching. More if your specific copper modules run hotter than most or if you’re using an SFP+ at 1Gbps.
I figured the latency improvement would be marginal at best, was mostly curious.
Heat though is a concern, so maybe I’ll look into a DAC if I can find one cheap enough. The modules I have don’t seem too hot, but these switches are in an enclosed cupboard, so every watt I can cut out is a win.
DAC will have less latency, but the difference is likely small. 1/10th, but if your latency is already <1ms then you probably don’t care.
Heat/power is another difference. Copper SFP modules tend to use a lot of watts and dissipate a lot of heat. DACs are very, very low wattage. You can probably save 4 watts on that link by switching. More if your specific copper modules run hotter than most or if you’re using an SFP+ at 1Gbps.
I figured the latency improvement would be marginal at best, was mostly curious.
Heat though is a concern, so maybe I’ll look into a DAC if I can find one cheap enough. The modules I have don’t seem too hot, but these switches are in an enclosed cupboard, so every watt I can cut out is a win.