What is the CRS326-24S+2Q+RM?

The CRS326-24S+2Q+RM is a professional-grade Ethernet switch that combines high-speed fiber optic ports with advanced routing capabilities. It is the first product in the MikroTik line to integrate 40 Gbps QSFP+ ports, making it suitable for high-capacity uplinks or traffic aggregation in network backbones. Unlike purely Layer 2 switches, this device supports full management via RouterOS, allowing the use of Layer 3 functions such as routing, IP filters, and queues, or simpler operation via SwitchOS.

What are the main technical features?

The key specifications of the CRS326-24S+2Q+RM include:

  • Ports: 24 SFP+ 10 Gbps ports, 2 QSFP+ 40 Gbps ports, and 1 10/100 Ethernet port.
  • Performance: Non-blocking switching capacity of 640 Gbps and non-blocking throughput of 320 Gbps. Forwarding rate up to 252 Mpps with common packets.
  • Processor and Memory: QCA9531 CPU at 650 MHz, 128 MB of RAM, and 32 MB of flash storage.
  • Power: Redundant power supply (dual power supply) with 100-240 V AC input. Maximum power consumption of 69 W.
  • Management: USB Type A port for configuration, RJ45 serial port, and RouterOS or SwitchOS operating system (Level 5 license).
  • Dimensions: 1U rackmount form factor (443 x 200 x 44 mm), with rack ears included.
  • Operating environment: Temperature range from -20°C to +60°C.

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

This switch is ideal for Internet access providers (WISPs) and data centers handling significant data volumes. The combination of 10G and 40G ports makes it suitable as a core switch or for aggregating traffic from access switches. Power redundancy is essential in scenarios where downtime is not acceptable, ensuring operational continuity. It is a professional choice for those requiring high performance and stability in fiber connectivity.

What to know before choosing it?

It is important to note that, although the CRS326-24S+2Q+RM supports all RouterOS features, the integrated CPU has performance limitations in intensive Layer 3 operations. Tests show that with 25 IP filter rules or simple queues, performance in terms of packets per second (kpps) and speed (Mbps) decreases compared to the fast path without rules. Additionally, the device requires a fiber optic infrastructure to fully utilize the SFP+ and QSFP+ ports, making it less suitable for standard high-speed copper connections.

Frequently asked questions

Does the CRS326-24S+2Q+RM support redundant power supply?

Yes, the MikroTik CRS326-24S+2Q+RM features a redundant power supply (dual power supply). This feature allows you to connect two independent AC power supplies to ensure operational continuity in case one fails, reducing the risk of unexpected downtime.

What ports are available on the CRS326-24S+2Q+RM?

The device features 24 10 Gbps SFP+ ports, 2 40 Gbps QSFP+ ports, and a single 10/100 Ethernet port. This configuration is optimized for high-capacity fiber optic environments, offering flexibility in uplinks and access connections.

Can I use RouterOS on the CRS326-24S+2Q+RM?

Yes, the MikroTik CRS326-24S+2Q+RM supports both RouterOS and SwitchOS. If you choose routing and Layer 3 features, you must use RouterOS. However, the integrated CPU has performance limits in complex Layer 3 operations, as indicated by the performance tables in the datasheet.

What is the maximum power consumption of the CRS326-24S+2Q+RM?

The maximum power consumption of the MikroTik CRS326-24S+2Q+RM is 69 W. This value must be considered when planning the power and cooling infrastructure in the rack, especially in high-density environments.

Learn more on the MikroTik website: CRS326-24S+2Q+RM page and official datasheet (PDF).