MikroTik 400G QSFP-DD Ethernet Switch (CRS804-4DDQ-hRM)

Ultra-Fast 400G Switching for AI and Data-Intensive Networks

The MikroTik CRS804-4DDQ-hRM delivers compact 400G switching designed for modern AI clusters, storage fabrics, and high-performance aggregation environments. Powered by a Marvell 98DX7335 switch chip and a quad-core ARM processor, it provides predictable low-latency performance with wire-speed switching across all ports. With four QSFP-DD interfaces and flexible breakout capabilities, this switch enables organizations to deploy high-bandwidth infrastructure while maintaining compatibility with existing network equipment.

Key Benefits and Features

• 400G High-Density Connectivity: Four QSFP-DD ports support 400G, 200G, 100G, 50G, and 40G connections, delivering massive bandwidth for high-performance computing and storage workloads.
• Flexible Breakout Options: Each QSFP-DD port can be split into multiple lower-speed interfaces, enabling seamless integration with SFP and QSFP devices across different generations.
• Wire-Speed Switching Performance: The Marvell 98DX7335 switching ASIC ensures consistent low-latency forwarding for demanding AI, GPU, and storage traffic.
• Reliable Enterprise Hardware: Dual redundant hot-swap power supplies and hot-swap cooling fans ensure continuous operation in mission-critical environments.
• RouterOS v7 Advanced Management: MikroTik RouterOS provides extensive networking features including traffic control, routing capabilities, and centralized management.

Ideal Use Cases

• AI and GPU cluster networking for high-performance computing
• High-speed aggregation in enterprise and campus networks
• All-flash storage fabrics requiring ultra-fast data transfer
• Compact spine or backbone switching in modern data centers
• Edge compute environments with high bandwidth requirements

Technical Specifications

• Product Model: MikroTik CRS804-4DDQ-hRM
• Switch Chip: Marvell 98DX7335
• CPU: Quad-Core AL52400 2.0 GHz ARM 64-bit
• Memory: 4 GB DDR4 RAM
• Storage: 512 MB NAND
• Ports: 4x 400G QSFP-DD, 2x 1G/10G Ethernet
• Operating System: RouterOS v7 (License Level 6)
• Maximum Power Consumption: 123 W
• Operating Temperature: -10C to +60C
• Power Inputs: Dual AC inputs 100-240 V

Upgrade Your Network to 400G Performance

Deploy scalable ultra-high-speed infrastructure with the MikroTik CRS804-4DDQ-hRM. Order today to power AI workloads and next-generation networks.

Model	CRS804-4DDQ-hRM
Product Type	Cloud Router Switch
CPU	Quad-Core AL52400 2000 MHz
CPU Architecture	ARM 64bit
Switch Chip	Marvell 98DX7335
RAM	4 GB DDR4
Storage	512 MB NAND
Ethernet Ports	2x 1G/10G Ethernet ports
High-Speed Ports	4x 400G QSFP-DD ports
Operating System	RouterOS v7 (License level 6)
Operating Temperature	-10C to +60C
AC Inputs	2
AC Input Range	100-240 V
Power Adapter Voltage	12 V
Power Adapter Current	27.5 A
Max Power Consumption	123 W
Max Power Consumption (Without Attachments)	92 W

QSFP-DD Port Speeds	40G / 50G / 100G / 200G / 400G
Breakout Support	Supports breakout modes to 1G / 2.5G / 5G / 10G / 25G / 50G
Switch Chip Performance	Wire-speed switching using Marvell 98DX7335 switch chip
Management	RouterOS v7 operating system with advanced traffic control and switching
Cooling	2 hot-swap cooling fans
Power Supply	Dual redundant hot-swap power supplies
Form Factor	1U rackmount
Mounting	Supports mounting two CRS804 switches in one 1U slot using RMK-2x10/19 kit
Typical Use Cases	AI clusters, storage fabrics, aggregation switching, compact 400G data center fabrics

Included	2 Power cords; Rackmount bracket; Rackmount rear support ears; Fastening set; RMK-2x10/19 mounting kit
Optional DAC Cables	DDQ+DA0001 (400G DAC 1 m); DDQ+DA00031 (400G DAC 3 m)
Optional Optical Transceiver	DDQ+85MP01D (400G 100 m optical transceiver)
Optional Power Supply	48V DC telecom-IN hot-swap power supply
Optional Cooling	MT-HotSwapFan-V2 hot-swap fan module

INTERNATIONAL -

International buyers must acknowledge that all duties and taxes are their sole responsibility and Network Devices Inc is not held responsible for possible additional charges.

DOMESTIC -

Products are shipped Monday through Friday via UPS/FedEx/USPS. The estimated delivery time is 1-6 business days depending on location. If “Free Shipping” is offered, it will be by Ground only and within USA Continental States Only (48 States). There will be a surcharge on shipments to Hawaii, Alaska, Puerto Rico and APO/FPO addresses. After you have made a purchase, the surcharge will be calculated using the parcel’s weight and size. Network Devices Inc ships the product the same day of receiving an order. Otherwise you will a receive notification of delay or cancellation of said order.