10Gb Network Setup Advice

[J37]

Was looking at getting a 2.5Gb network setup at home, after some research apparently its cheaper to go straight to 10Gb? I'm looking at setting up a 10Gb (2.5Gb) connection between two computers, my main machine has 2.5Gb built onto the motherboard (PC A) and the other machine has 1Gb (PC B).

I was thinking of getting this (URL below) for PC B, as its relatively cheap. I'm not too concerned about getting exactly 2.5Gb speeds, as long as its at least 2Gb.
URL: Takealot

Apparently Mikrotik is the way to go - for cheap? I also don't really understand SFP ports and which modules I should get. I was looking at the switch below, not sure which SFP module(s) will work and what will allow me to connect an RJ45 cable to it.

MikroTik SwOS Smart Switch 24 Port Gigabit 2SFP+ | CSS326-24G-2S+RM

MikroTik's RB-CSS326 is SwOS smart switch featuring 24x Gigabit Ethernet ports and 2x 10Gbps SFP+ 10Gbps ports. Powered by SwOS, the unit is configurable from a web browser and provides all the basic functionality of a managed switch.

scoop.co.za

Also not sure how this will all fit into my setup. Assuming PC A will connect to one SFP port, PC B will connect to one SFP port and the remainder of my networking setup will connect to the standard RJ45 ports on the switch? 10Gb speeds will only be achievable via the two SFP ports? While still being able to see devices connected to the non-SFP ports (like my NAS is viewable to PC A/B)?

Hope someone can give me advice, thanks!

 

[Oops!!!]

You can get 10GBASE-T SFP+ generic GBIC's from Scoop or Miro but there are a few caveats running 10GB over ethernet.

These cheap generics which are still not cheap can only do that type of bandwidth over very limited distance, like 20m runs. Proper OEM ones which can do the full distance start at around $800. You will also need to use high-end CAT6A/7 and crimp it with a shielded RJ45 connector.

"BUT" 10GB over ethernet is not as easy as plugging in a few NIC's and off you go, you will end up with speeds close to 2.5GB. There are things like jumbo packets and O/S configs you need to do beforehand to utilise that sort of bandwidth.

Stick to 2.5GB ports and use cheap CAT cable!

P.S Yes, all ethernet ports will be able to see devices in the SFP ports with the right configs.