alt Hacker NewsGo with single mode only for new installs.
Biggest install cost is labour. The cable and optics are cheap now, and with the future (200Gbps+) being multiple wavelengths in parallel[1], we’ve pretty much hit the end of the road for MMF.
[1] https://www.tiafotc.org/ieee-802-3-ethernet-standards-update...
Replies
> Biggest install cost is labour.
Okay? If I had to run cabling through a wall, I'd make sure the guy sets it up so that I can use the cable he installs to pull new later. My time's free when I'm doing something that I don't mind doing, and I don't mind easy cable pulls.
> ...(200Gbps+)...
Don't you need 16x PCIe 4.0 for those guys? With everything other than workstation and server boards having exactly one 16x slot, you're "never" hooking that up to a gaming PC.
This is the correct answer, always single mode. It's been the most future proof to date, people just keep figuring out how to cram more and more wavelengths into it.