Network switch MikroTik CRS804-4DDQ-HRM — 10G Ethernet RJ-45 2 ports, console RJ-45, grey

MikroTik CRS804-4DDQ-HRM is a compact 1U network switch designed for AI clusters, storage fabrics and high-speed aggregation. It provides four 400G QSFP56-DD ports alongside two 10G-capable RJ-45 Ethernet ports and an RJ-45 console port, runs RouterOS v7, and offers hot-swap power supplies, efficient cooling and low power consumption for wire-speed performance and scalable deployment.

Advantages

The switch delivers ultra-high bandwidth through four 400G QSFP56-DD ports while maintaining flexible 10G RJ-45 connectivity for uplinks or servers. Hot-swappable power supplies and robust cooling enable continuous operation in rack environments. RouterOS v7 support provides a broad feature set for routing and switching, and the compact 1U form factor saves rack space.

Suitable for

• AI/ML cluster fabric interconnects
• High-speed aggregation in data centers
• Storage networking and NVMe-oF front-end
• Uplink connections for server racks

Key specifications

• Form factor: 1U rack-mountable unit
• High-speed ports: 4 × 400G QSFP56-DD
• RJ-45 ports: 2 × 10G-capable Ethernet (100/1000/10000 Mbps)
• Console: RJ-45 console port
• Software: RouterOS v7
• Power: hot-swappable AC power supplies
• Cooling: built-in robust cooling for continuous operation

How to use

Install the CRS804-4DDQ-HRM into a standard 19-inch rack using the included mounting hardware or place it on a desktop. Connect high-speed fabrics or switches to the QSFP56-DD ports with compatible DAC/CAGE/optic modules and attach servers or uplinks to the 10G RJ-45 ports. Use the RJ-45 console port for initial configuration and manage the device through RouterOS v7 via CLI or supported management interfaces.

Recommendations

For optimal thermal and power reliability, deploy the unit in a ventilated rack space with redundant AC power feeds where possible. Use compatible QSFP56-DD transceivers or breakout cables and ensure cabling and endpoints support the intended 400G or 10G link speeds.