What is the CRS312-4C+8XG-RM?

The CRS312-4C+8XG-RM is a network switch that introduces 10 Gbps RJ45 Ethernet ports for the first time in a MikroTik product. The device also integrates four combo ports, usable as either 10G RJ45 or 10G SFP+, allowing you to choose between copper or fiber optic connections. The combo ports can be activated simultaneously with the eight standard RJ45 ports, and their operating mode can be managed via RouterOS scripting.

What are the main technical specifications?

The key specifications of the CRS312-4C+8XG-RM, as reported in the MikroTik datasheet, include:

  • Ports: 8 Ethernet RJ45 ports (10/100/1G/2.5G/5G/10G), 4 combo ports (10G RJ45 / SFP+), 1 Ethernet 10/100 port.
  • Performance: Non-blocking throughput of 120 Gbps, switching capacity of 240 Gbps, and forwarding rate of 178 Mpps.
  • Hardware: QCA9531 CPU at 650 MHz, 64 MB of RAM, 16 MB of flash storage.
  • Power: Redundant power supply (AC 100-240 V), maximum power consumption of 60 W.
  • Management interfaces: USB Type-A port, RJ45 serial port for console.
  • Operating system: RouterOS or SwitchOS (Level 5 license).
  • Dimensions and environment: 1U rack format (443 x 183 x 44 mm), operating temperature from -30°C to +70°C.

Who is it for and in which scenarios does it make sense?

This switch is intended for professionals who manage large volumes of data and require fast, stable connectivity 24 hours a day. MikroTik positions it as a solution for multimedia production environments, scientific research, game development, and big data analytics. The presence of redundant power supply is designed to prevent service interruptions in contexts where delivery times are critical.

What to know before choosing it?

It is important to note that the CRS312-4C+8XG-RM supports both RouterOS and SwitchOS. If you need routing and advanced Layer 3 features, you must use RouterOS; for simpler yet still powerful management, SwitchOS is available. The device includes rack ears, a screw kit, and feet, and two IEC cables in the box.

Frequently asked questions

Does the CRS312-4C+8XG-RM support SFP+ ports?

Yes, the MikroTik CRS312-4C+8XG-RM features 4 combo ports that can be configured as 10 Gbps SFP+ ports. These ports can be used together with the standard RJ45 ports.

What is the switching capacity of the CRS312-4C+8XG-RM?

The MikroTik CRS312-4C+8XG-RM offers a switching capacity of 240 Gbps and a total non-blocking throughput of 120 Gbps, with a forwarding rate of 178 Mpps.

Does the CRS312-4C+8XG-RM have redundant power supply?

Yes, the MikroTik CRS312-4C+8XG-RM is equipped with redundant power supply to ensure operational continuity and prevent unexpected service interruptions.

Which operating systems does the CRS312-4C+8XG-RM support?

The MikroTik CRS312-4C+8XG-RM can be booted with RouterOS, for routing and Layer 3 features, or with SwitchOS, a simpler but powerful operating system.

Learn more on the MikroTik website: CRS312-4C+8XG-RM page and official datasheet (PDF).