In this video I walk through a cheap and easy way to add 10Gb fiber to a home network using the MikroTik CRS309-1G-8S+IN. I break down what the model name actually means, do a quick hardware tour (8x SFP+ plus a 1Gb management port, PoE-in support, RS232 console), and talk about why I like it for homelabs: it’s low power, passively cooled (no fans), and it comes with rack ears so it’s easy to get into a standard 19-inch rack. I also cover the big trade-off: while it can run RouterOS, it doesn’t have the horsepower to do Layer 3 routing anywhere near 10Gb line rate. MikroTik’s own testing shows Layer 2 throughput is great, but Layer 3 is only a couple gigabits, so I treat this as a Layer 2 switch and stick with SwOS because it’s simpler when you don’t need “a million options.” Then I show initial setup (default 192.168.88.1, set a static IP, flip boot to SwOS), do a quick tour of the SwOS tabs (SFP diagnostics, LAGs, mirroring, RSTP, VLANs), and finish with my take on fiber vs 10GBase-T: fiber is cheaper, cooler, and more practical for most home runs.