To solve a specific server clustering problem I am opting to split the patching of the servers to both "in the same room" and "in another room". We have multimode cabling between all rooms in a full mesh, so there are enough fibres. I plan to use regular 25G SFP28 SR controllers and transceivers to patch the servers into the switches "in the same room", as I will not exceed 100m. However, the distance to patch the servers "in another room" will be more than 100m and about 200m in the longest path. That means that regular 25g SFP28 SR transceivers are out of the question. There do exist eSR and cSR multimode transceivers, that will increase the distance to 300m and 500m respectively.
My question is: Do I have to take care that the SFP28 controllers I order to be fitted into the servers support eSR and/or cSR transceivers? Or is that entirely up to the transceivers?
I was planning on ordering SuperMicro's AOC-A25G-b2 controllers that are based on Broadcom BCM57414.