100gbit fiber between opposite ends of house
I have been googling and reading reddit forums, websites, youtube vids, etc. The one thing I have learned is no one agrees on the best way to do this.
My house is from the 60s. Due to how its built, I have my main "server" closet on one end of the house and the router / distribution switches on the other end. Currently I have two Cat6a cables run between the two closets. Then Cat6a to bedrooms / office / living room.
Server room has a MikroTik CRS504-4XQ-IN - so 4 ports of QSFP28 and I have 4 servers connected to it at 100gbit. Way overkill, but I like playing around and learning new things.
I have no need for 100gbit. I admit it. That said, I plan to be here another 20 years so I'd like to future proof the run between the two closets. The run is less than 100 Feet.
Simple question which seems to be full of right/wrong answers. What cable, connector and optics should I buy to connect the closets?
I see people saying OS1/2, I see OM5. I see SR/LR/CWDM....Most people suggest LC I think... Its very confusing for someone who grew up with copper.
What if I have QSFP28 one one end and 4xSFP28 on the other does that mean MPO? Or just multistrand until I can afford 100gbit on both ends? Or live with 25gbit for now (again, don't need 100gbit today)
I'd really appreciate responses with exactly what I should buy (Cable with Connector + optic for the switches). Its not that I am lazy, I just really can't find clear and convincing evidence of what I should do to not waste time and money on the wrong things.