MT-RBCRS804-4DDQ-HRM

MikroTik CRS804 DDQ Cloud Router Switch

MikroTik CRS804 DDQ Cloud Router Switch, CRS804-4DDQ-hRM, RouterOS License 6, RouterOS V7 Operating System, 4GB RAM, 512 MB storage size, 2 AC inputs, 2 fans, 2x 10G Ethernet Ports, 4x 400g QSFP56-DD Ports

Overview:

The MikroTik CRS804 DDQ is a compact 1U 400G switch engineered for modern high-performance environments such as AI clusters, storage fabrics, and high-speed aggregation layers. With four 400G QSFP56-DD ports and dual 10 Gigabit Ethernet interfaces, it delivers exceptional bandwidth density in a space-efficient form factor. Running on RouterOS v7, it combines advanced switching capabilities with flexible network management, making it suitable for both cutting-edge deployments and gradual infrastructure upgrades.

Description:

The MikroTik CRS804-4DDQ-hRM is designed to provide ultra-high throughput and scalability for demanding network workloads. Powered by a quad-core 2 GHz ARM CPU and a Marvell switch chip, it ensures wire-speed performance across all ports while maintaining low latency. With 4 GB RAM, dual hot-swap power supplies, and efficient cooling, it offers reliability and consistent uptime in critical environments. Flexible breakout support allows each 400G port to adapt to multiple speeds, enabling seamless integration with existing infrastructure while preparing for future expansion.

Features:

High-speed switching for demanding workloads
At the core of this unit is a Marvell 98DX7335 switch chip paired with a quad-core ARM processor. This combination enables consistent wire-speed throughput across all interfaces, even under heavy traffic loads. The architecture supports advanced traffic handling and efficient packet forwarding, which is essential in latency-sensitive environments like AI processing and high-frequency data exchange.

The device maintains stable operation with a well-balanced hardware profile:

• Quad-core ARM CPU running at 2 GHz
• 4 GB DDR4 RAM for smooth operation
• 512 MB NAND storage for system and configuration data
• RouterOS v7 for advanced routing and switching control

Flexible connectivity and port scalability
The CRS804 DDQ is built around high-density connectivity, offering a versatile mix of ultra-fast and backward-compatible interfaces.

Key connectivity options include:

• 4x 400G QSFP56-DD ports for ultra-high throughput links
• 2x 1G/10G Ethernet ports supporting multiple speeds from 10M to 10G
• Breakout support for QSFP-DD ports into lower-speed links such as 200G, 100G, 50G, 25G, and 10G

This flexibility allows the device to operate in both next-generation and legacy network environments without requiring immediate infrastructure replacement.

Designed for AI clusters and compute environments
The CRS804-4DDQ-hRM fits naturally into AI and GPU-based deployments where consistent, low-latency communication is critical. It ensures efficient data transfer between compute nodes and storage systems, minimizing bottlenecks and maintaining throughput under load.

Its compact 1U design and moderate power consumption make it practical for:

• AI labs and research facilities
• Edge computing deployments
• Small to mid-sized data center racks

Efficient upgrade path for existing networks
Each 400G QSFP-DD port is built on multiple independent lanes, enabling flexible breakout configurations. This allows the switch to serve as a high-capacity aggregation or core layer device while still supporting lower-speed connections.

This approach enables:

• Gradual migration from 10G, 25G, or 100G to 400G
• Integration with mixed-generation hardware
• Reduced capital expenditure by extending existing infrastructure lifespan

Optimized for storage and high-throughput data movement
The high bandwidth capacity makes this model suitable for storage-heavy environments such as all-flash arrays and media production workflows. It supports rapid data transfers and consistent throughput, which is essential for large datasets and real-time processing.

Typical use cases include:

• High-speed storage fabrics
• Scientific computing workloads
• Video production and rendering pipelines

Reliable hardware with efficient thermal management
The CRS804 DDQ is engineered for stable long-term operation, even under sustained load. It incorporates redundancy and cooling mechanisms that support uptime in critical environments.

Key hardware and environmental attributes:

• Dual AC power inputs (100-240V, 50-60 Hz)
• Dual hot-swap power supplies for redundancy
• Two integrated cooling fans for thermal stability
• Maximum power consumption of 123 W under full load
• Operating temperature range from -10 C to 60 C

Technical summary and system details
The MikroTik CRS804-4DDQ-hRM combines switching performance with a robust system architecture:

• Product code: CRS804-4DDQ-hRM
• Part number / SKU: MT-RBCRS804-4DDQ-HRM
• CPU: AL52400 quad-core ARM (4 threads)
• Switch chip: Marvell 98DX7335
• Operating system: RouterOS v7
• License level: 6
• RAM: 4 GB
• Storage: 512 MB NAND
• Ethernet ports: 2x multi-speed 1G/10G
• QSFP56-DD ports: 4x 400G
• Serial console: RJ45
• Monitoring: CPU temperature, PCB temperature, voltage

Deployment versatility in compact environments
With its 1U rackmount design and included mounting accessories, the CRS804 DDQ is suitable for dense deployments where space efficiency is critical. It can function as a spine switch, aggregation layer, or high-speed interconnect in compact data center setups.

Its balance of performance, flexibility, and power efficiency makes it a practical solution for organizations moving toward 400G networking without overcommitting resources upfront.

Specifications:

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Specifications
Product Code	MT-RBCRS804-4DDQ-HRM
Specifications
Product code	CRS804-4DDQ-hRM
Architecture	ARM 64bit
CPU	AL52400
CPU core count	4
CPU nominal frequency	2000 MHz
CPU Threads count	4
Switch chip model	98DX7335
RouterOS license	6
Operating System	RouterOS v7
Size of RAM	4 GB
Storage size	512 MB
Storage type	NAND
MTBF	Approximately 200'000 hours at 25C
Tested ambient temperature	-10degreesC to 60degreesC
Powering
Number of AC inputs	2
AC input range	100-240
Frequency (Hz)	50-60
Max power consumption	123 W
Max power consumption without attachments	92 W
Cooling type	2 fans
Ethernet
Number of 1G/2.5G/5G/10G Ethernet ports	2 (supported: 10M/100M/1G/10G)
Number of 400G QSFP56-DD ports	4
Peripherals
Serial console port	RJ45
Other
CPU temperature monitor	Yes
PCB temperature monitor	Yes
Voltage Monitor	Yes
Certification & Approvals
Certification	CE, EAC, ROHS
IP	20
Included parts	2x IEC cords
	Rackmount bracket white
	Rackmount rear support ears (2/2)
	Rackmount bracket (long)
	RMK-2x10/19
	K-99 fastening set
Note	The device has an operating system preinstalled and licensed. No separate purchase is necessary and the product is ready to use. The device includes free software updates for the life of the product or a minimum of 5 years starting from date of purchase.