CRS804 DDQ
CRS804 DDQ is a compact, affordable 400G switch with 4× QSFP-DD ports, breakout capabilities, dual hot-swap PSUs, and full wire-speed switching — ideal for AI clusters, storage fabrics, and next-gen high-speed networks.
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The CRS804 DDQ is MikroTik’s most compact and cost-effective entry into the 400 Gigabit switching world. Designed for AI clusters, high-performance storage fabrics, and modern data aggregation, this switch delivers full wire-speed performance across all ports thanks to the powerful Marvell 98DX7335 switch chip.
With four 400G QSFP-DD ports, each built from 8 independent lanes, the CRS804 DDQ supports flexible breakout configurations — including 200G, 100G, 50G, 40G, 25G, 10G, 5G, 2.5G, and 1G links. This means it integrates smoothly into new or legacy infrastructure, letting you upgrade at your own pace without replacing existing equipment.
The switch features a quad-core 2.0 GHz ARM CPU, 4 GB RAM, dual 1G/10G Ethernet ports, dual hot-swap power supplies, and dual hot-swap cooling fans, ensuring stability and long-term reliability in demanding setups.
Compact, efficient, and quiet, the CRS804 DDQ fits perfectly into small data centers, research labs, AI development environments, and enterprise backbone networks where traditional 400G solutions are too expensive or power-hungry.
Key Features
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Four 400G QSFP-DD ports with breakout to 200G/100G/50G/40G/25G/10G/5G/2.5G/1G
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Two 1G/10G Ethernet management/uplink ports
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Full wire-speed switching thanks to Marvell 98DX7335
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** Quad-core ARM 2.0 GHz CPU + 4 GB DDR4 RAM**
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Dual redundant hot-swap power supplies included
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Dual hot-swap cooling fans
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Quiet, compact 1U form factor
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Ideal for AI clusters, GPU nodes, NVMe-over-Fabric, storage fabrics, and high-speed aggregation
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Only 123 W max power draw with optics installed
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Breakout-ready — works with SFP, QSFP, and QSFP-DD cables
Deployment Uses
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AI & GPU clusters: Low-latency, predictable switching for interconnected compute nodes
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Storage fabrics: Perfect for ultra-fast NVMe or all-flash architectures
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High-speed aggregation: Backbone switch for edge compute, enterprise pods, and small data centers
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Future-proofing existing networks: Add 400G without replacing older racks or cabling
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Compact 400G fabrics: Build powerful spine/backbone networks in limited rack space
- Product code
- CRS804-4DDQ-hRM
- CPU architecture
- ARM 64bit
- CPU
- Quad-Core AL52400 2000 MHz
- Switch chip model
- 98DX7335
- Operating System
- RouterOS v7, License level 6
- Size of RAM
- 4 GB
- Storage size
- 512 MB, NAND
- Max Power consumption
- 123 W
- Number of AC inputs
- 2
- AC input range
- 100-240 V
- Operating Temperature
- -10°C to +60°C
- RAM type
- DDR4
- Power adapter nominal voltage
- 12 V
- Power adapter nominal current
- 27.5 A
- Number of 1G/2.5G/5G/10G Ethernet ports
- 2
- Number of 400G QSFP56-DD ports
- 4
- Max power consumption (without attachments)
- 92 W
