I agree MM is more widespread, but I thought we were talking about new cabling (and I took that to include the transceivers). (Serial over fiber? Nice, didn't k

I agree MM is more widespread, but I thought we were talking about new cabling (and I took that to include the transceivers). (Serial over fiber? Nice, didn't know that existed.) Pricing-wise, what I meant is: $18: 10G-SR (MM): https://www.fs.com/products/11552.html https://www.fs.com/products/11552.html $24: 10G-LR (SM): https://www.fs.com/products/11555.html https://www.fs.com/products/11555.html Compared to the cost of actually running the fiber through the building, that's not too bad for trunks. As I said, I don't mind multi-mode for the last hop, which is where price is a larger concern due to quantity. And in organizations where OEM pricing is used as baseline, relative to that a resourceful admin can go to single mode and still come out ahead (it's not a fair comparison, but reality in some places). Sure, things are probably different in an actual DC. Direct attach is certainly cheaper (at first), but it can be a hassle compat wise, and I've never had quite the right length available. I can't speak to cooling, that's never been my department.