Originally Posted by Pawelr98
And SFP+ is just expensive and pain compared to plain RJ45 Cat5E.
SFP+ is pretty nice to use, it is my favorite networking standard. I use QFSP+ now, but it is too large, SFP+ supports fiber (long runs) or copper (short runs) without being so large. It is tricky to fit on a motherboard though, a better form factor seems possible. We are going to have to stop trying to use super cheap twisted pair wires at some point and I think it is past time to start mass adopting the next thing.
The problem with trying to keep using twisted pair is obvious by the exciting new release of a reasonably affordable 2.5 Gbps
consumer grade switch in 2020
. I got my first 100 Mbps NIC at most a few years after my first 10 Mbps one, and my first 1 Gbps was very soon after that. My first 10 Gbps NIC was over a decade later and used SFP+. I still do not have a nice 5-8 port SFP+ hub at a reasonable price, because there is no market for one because everyone wants to keep using the Cat5e they laid down for gigabit. SFP+ is never going to be as cheap as RJ45 but RJ45 is never going to be as fast as SFP+. The RJ45 NIC on motherboards seems to be getting slower? First there were some 10 Gbps ones, then some 5 Gbps, and now we are on 2.5 Gbps? I suspect too many complaints of the faster modes not working over the wires people had.
Right now the only other option is SFP+, but it wasn't designed for consumers so we have a weird lack of an appropriate connector. An ultrabook with an SFP+ port would be pretty sweet. A USB-C 100 Gbps fiber dongle? I suppose it is more likely to be a SFP+ base station and wireless for ultrabooks.
I think technology today could scale up 10 Gbps SFP+ fiber transceivers enough that they could be somewhat affordable, at least for those who want more than 1 Gbps. 10 Gbps even over CAT6/7 isn't very reliable at any distance while single mode fiber can do 2km runs and 100m is easy with multimode fiber. The fiber itself is also cheap, it is only the transceivers that are still pretty expensive. Multimode transceivers are a bit cheaper but the fiber costs more. They are all getting cheaper due to the growth in data centers but since the market is all business to business prices are not being pushed as aggressively as they could be.
I do see SFP+ in a few high end consumer routers and similar so there is hope. We have nothing else.