MikroTik CRS328-4C-20S-4S+RM
MikroTik CRS328-4C-20S-4S+RM — switch: 20× SFP, 4× SFP+ and 4 combo ports (Gigabit/SFP), 1U rack.
- PoE
- No
- SFP ports
- 20
- SFP+ ports
- 4
- Speed
- 10 Gbps
- Management
- Managed (RouterOS)
- Form factor
- Rack-mount
The MikroTik CRS328-4C-20S-4S+RM is a managed 1U rack switch with a port layout rarely seen in its class: twenty SFP slots for gigabit optics, four SFP+ ports at 10 Gbps and four combo ports, each working either as copper Gigabit RJ45 or as SFP. The model targets telecom operators, campuses and enterprises where many fiber lines from buildings, floors or street cabinets converge at one node. Switching is done in hardware at port speed, and management is available through RouterOS or the simplified SwOS. The chassis is designed for a standard 19-inch rack.
In practice, this configuration eliminates a fleet of media converters: each fiber goes straight into its own SFP slot, while the combo ports pick up lines that arrive over copper. The four SFP+ ports carry the aggregated traffic to the network core or a router and can be bundled into an LACP trunk when needed. The switch fits naturally into a MikroTik infrastructure and is administered with the familiar tools — WinBox, the web interface or the console.
Advantages
- 20 SFP slots — direct termination of gigabit fiber lines
- 4 SFP+ 10 Gbps ports for uplinks and servers
- 4 combo ports Gigabit RJ45/SFP — flexibility without media converters
- Two management options: RouterOS and SwOS
- Hardware switching at full port speed
- 1U rackmount design for 19" cabinets
Applications
- Aggregation nodes of internet providers
- Campus networks with fiber to buildings
- Enterprise distribution nodes
- Server rooms and small data centers
- Video surveillance systems with fiber from street nodes
Installation and setup
The switch mounts in a 19-inch rack; when all slots are populated with transceivers, it helps to leave a free unit above for ventilation. SFP and SFP+ transceivers are chosen for the fiber type and link distance, while passive DAC cables are more economical for in-rack connections. RouterOS offers VLANs, LACP aggregation, rate limiting and monitoring; SwOS is enough where only fast basic switching is required. A typical scheme: subscriber or floor lines into the gigabit SFP ports, uplink to the router or core via SFP+. The switch and matching transceivers ship from our warehouse in Tashkent; we assist with selection and initial configuration.
Frequently asked questions
Who needs twenty gigabit SFP ports?
What are the 4 combo ports in "4C"?
Where does the aggregated traffic go?
Does the switch have PoE?
Product reviews
Questions & answers
