MikroTik CRS504-4XQ-IN Cloud Router Switch – 4x QSFP28, 100G Ready, 650MHz CPU

Compact, efficient 100G networking for everyday setups

The MikroTik CRS504-4XQ-IN Cloud Router Switch delivers a powerful leap toward 100G networking without compromising space or energy usage. Featuring a 650MHz CPU and 64MB of RAM, this switch pairs solid processing with a compact footprint, making it a practical upgrade for existing 10G or 25G networks. Four 100G QSFP28 ports offer high-capacity uplinks and the option to breakout into multiple 25G links, giving you scalable flexibility as needs evolve. Running RouterOS with L5 capabilities, it provides robust control, monitoring, and configuration options while a dedicated management Ethernet port keeps control traffic separate from data paths for simpler administration.

Key capabilities

• Four 100G QSFP28 ports with breakout capability to 4x25G per port, enabling adaptable topologies.
• Flexible connection options: 100G on one port, 40G on another, 4x25G on a third, plus 10G/1G on the fourth.
• Supports breakout scenarios to connect up to 16x25G devices via breakout cables.
• Dedicated management Ethernet port for separate control traffic and easier device management.

Energy efficiency and compact design

• Small footprint with low power draw—approximately 25W in typical operation, excluding attached modules.
• Dual hot-swap power supplies for higher availability and resilience.
• Wall-mount capable, enabling flexible placement in constrained spaces or edge deployments.

Real-world usefulness

• Ideal for teams expanding 10/25G networks toward 100G in labs, campuses, or small data centers.
• Notable deployments include high-throughput data workflows, such as genomics data networks, where fast transfers matter.
• In practice, devices like this have helped Latvia become the first Baltic country to establish 100G connectivity to a pan-European research network, illustrating the potential for rapid, scalable networking in regional projects.

Whether you are upgrading an existing infrastructure or planning a new 100G edge, the CRS504-4XQ-IN offers a scalable platform with sensible power efficiency and versatile port options. It aims to balance capability with simplicity, helping network administrators explore higher speeds without overhauling every component of the network.