What is the MikroTik CRS320-8P-8B-4S+RM?

The MikroTik CRS320-8P-8B-4S+RM is a Gigabit network switch with 17 Ethernet ports and 4 SFP+ 10G ports, featuring an intelligent PoE controller. Unlike previous models that only supported 802.3af/at, this device fully implements the 802.3bt standard, allowing you to power devices that require higher power without using separate DC power supplies. It is designed to simplify installation in offices, conference rooms, and industrial facilities where cable cleanliness is a priority.

What are the main technical features?

The key specifications of the MikroTik CRS320-8P-8B-4S+RM include:

  • Ethernet ports: 17 Gigabit ports (10M/100M/1G support), including 8 with 802.3af/at PoE-out (Ether1-Ether8) and 8 with 802.3bt PoE-out (Ether9-Ether16).
  • Uplink ports: 4 SFP+ 10G ports (1G/2.5G/10G support depending on the module).
  • PoE power: Up to 90W per port (802.3bt), total output power of 963 W with the standard 600 W power supply.
  • PSU expandability: Slot for a second power supply (sold separately, code G1483-0600WNB) to increase total power to 1150 W.
  • Hardware: Dual-Core ARM 32bit CPU at 800 MHz, 256 MB DDR3 RAM, 32 MB Flash, Marvel 98DX226S switch chip.
  • Operating System: RouterOS v7 (Level 5 license).
  • Dimensions and Mounting: 444 x 235 x 44 mm, with rack ears.
  • Power consumption: Maximum 600 W (or 1150 W with additional PSU), maximum consumption without connected devices 36 W.

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

This switch is suitable for network administrators who need to power high-draw devices such as security cameras with heating elements, LED advertising screens, or industrial automation systems. It is particularly useful in environments like hotels, offices, and buildings where reducing the number of power cables is necessary for aesthetic or safety reasons. The presence of SFP+ 10G ports also makes it suitable as an aggregation node for high-speed fiber optic connections.

What to know before choosing it?

It is fundamental to note that the MikroTik CRS320-8P-8B-4S+RM only supports PoE devices fully compliant with the 802.3af/at/bt standards. Although it can power “compatible” devices, you must avoid specific grounding scenarios to ensure system safety and stability. Additionally, the 600 W power supply is not included in the basic package if you buy only the switch (the datasheet indicates that it is available for separate purchase or included depending on the configuration, but the text specifies “Included parts: Power cord” and mentions the expandable PSU), so always verify the complete equipment list. The device works exclusively with RouterOS v7.

Frequently asked questions

What is the maximum power output per port of the MikroTik CRS320-8P-8B-4S+RM?

The MikroTik CRS320-8P-8B-4S+RM can deliver up to 90W per port on the 802.3bt ports (Ether9-Ether16), while the Ether1-Ether8 ports support the 802.3af/at standard.

Is the MikroTik CRS320-8P-8B-4S+RM compatible with RouterOS v6?

No, the MikroTik CRS320-8P-8B-4S+RM exclusively supports RouterOS v7 with a level 5 license.

Can the total power output of the MikroTik CRS320-8P-8B-4S+RM be increased beyond 600 W?

Yes, the MikroTik CRS320-8P-8B-4S+RM features an expansion slot for a second 600 W power supply (code G1483-0600WNB), bringing the total output power to 1150 W.

How many SFP+ ports does the MikroTik CRS320-8P-8B-4S+RM have?

The MikroTik CRS320-8P-8B-4S+RM is equipped with 4 SFP+ 10G ports, which support speeds of 1G, 2.5G, or 10G depending on the optical module used.

Learn more on the MikroTik website: CRS320-8P-8B-4S+RM page and official datasheet (PDF).