MikroTik CRS804 DDQ: Compact 400G Switching for Modern Networks
The MikroTik CRS804 DDQ is a compact 1U 400G switch with four QSFP56-DD ports, dual 10G Ethernet, RouterOS v7, and redundant power.
January 28, 2026
When your network needs to move beyond 100G, the MikroTik CRS804 DDQ offers a practical way to step into 400G without oversized hardware.
Designed for modern cores, AI and GPU clusters, and high-speed aggregation, the CRS804 DDQ features 4× 400G QSFP56-DD ports alongside 2× 1/10G Ethernet ports for management or lower-speed uplinks, all powered by RouterOS v7.
With four native 400G ports in a single rack unit, the CRS804 DDQ is well suited for:
AI and GPU clusters that depend on low-latency, high-bandwidth east–west traffic
High-performance storage fabrics supporting all-flash or large dataset workflows
Core and aggregation roles where rack space and power efficiency matter
Under the hood, it combines high-performance Marvell switching silicon with a quad-core ARM CPU and 4 GB of RAM, providing wire-speed switching with the control and visibility RouterOS users expect.
Built to scale with your network
One of the CRS804 DDQ’s biggest advantages is flexibility. Each QSFP56-DD port supports breakout configurations, allowing you to deploy native 400G today or split ports into 200G, 100G, or lower-speed links as needed. That makes it easier to integrate into existing infrastructure now, while keeping your upgrade path open for the future.
Designed for reliability
Dual AC power inputswith hot-swap power supplies
Efficient cooling and a compact, rack-ready design
Support for continuous operation in demanding data center conditions
The MikroTik CRS804 DDQ delivers serious bandwidth without unnecessary complexity. It’s a strong fit for organizations that need 400G capability in a practical, scalable switch—whether you’re building a new high-speed fabric or upgrading your core one step at a time.