MikroTik CCR2004-1G-12S+2XS router, Cloud Core Router, 12 × SFP+, 2 × SFP28

Unlike an ordinary router with lots of copper ports, this model, going by its code, has a single Gigabit Ethernet port, and all other connections go through optical slots. That layout is meant for a network core where devices sit in different cabinets, rooms or buildings and fibre replaces copper cabling.

The 12S+ in the model name stands, in MikroTik naming, for twelve SFP+ slots. SFP+ is the 10-gigabit connection standard used to connect switches, servers and operator lines to the router. Each slot takes an optical module or a direct-attach cable chosen according to the distance and the device on the other end.

The 2XS marking means two SFP28 slots in MikroTik naming. SFP28 is the faster successor to SFP+ in the same slot format, typically used for the busiest links, such as the operator line or the core switch. Check exact speeds and supported modules in the manufacturer specification.

The only copper Ethernet port is handy for managing the device or connecting equipment that uses copper cabling. Because the supplier data for this model is sparse, it is worth checking the power supply, enclosure and software licence in the manufacturer specification before installation as well.

Service providers and larger businesses whose network core is built on fibre; data centres and server rooms where switches and servers connect over SFP+ and SFP28; and network administrators who use MikroTik Cloud Core Router equipment and need many optical slots.