Whats the best solution for short runs (rack) between Mikrotik switches and Dell servers. Will a DAC still work between different vendors or is it always best to buy individual transceivers?
Agreed. I have a 10 Gb DAC connecting my workstation and a small server to a Mikrotik. They are way cheaper, use less electric, and run cooler compared to a UTP SFP. I don't like UTP for 10Gb as its both costly and less efficient though that is going to get better with time.
It won’t get much better because that’s just a limitation of how 10GBASE-T works. There’s never a good reason to use it. Always just use a DAC or fibre.