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MikroTik CRS812 DDQ (CRS812-8DS-2DQ-2DDQ-RM)

The CRS812 DDQ is a high-performance Layer 2/Layer 3 switch that brings 50G, 200G, and 400G connectivity into a compact 1U form factor. It combines a quad-core 2 GHz ARM 64-bit CPU, 4 GB RAM, dual-redundant hot-swap power supplies, and 4× hot-swap cooling fans with a flexible mix of high-speed ports: 2× 1G/10G Ethernet, 8× 50G SFP56, 2× 200G QSFP56, and 2× 400G QSFP56-DD.

MikroTik CRS812 DDQ front port view
MikroTik CRS812 DDQ rackmount front
MikroTik CRS812 DDQ rear with PSUs and fans
400G QSFP56-DD ports
200G QSFP56 ports
50G SFP56 ports
1G/10G Ethernet ports

Note: QSFP56 and QSFP56-DD ports support break-out modes to 1G / 2.5G / 5G / 10G / 25G / 50G, allowing flexible fan-out to lower-speed links using suitable DACs or optics.

Make 50G–400G connectivity practical and accessible

High-capacity 400G networking has traditionally been associated with complex and expensive platforms. The CRS812 DDQ uses a modern high-performance switch chip and a powerful ARM CPU to deliver advanced switching, routing, and traffic management with familiar RouterOS v7 features – now scaled up to 400 Gbps interfaces.

Core hardware

  • ARM 64-bit quad-core CPU @ 2 GHz
  • 4 GB RAM, 512 MB NAND storage
  • RouterOS v7, license level 6
  • High-performance switching ASIC for wire-speed forwarding

Power & cooling

  • AC inputs, PSU slots (dual-redundant)
  • AC input range: 100–240 V, 50–60 Hz
  • hot-swap fans
  • Max power consumption: 134 W (approx. 81 W without attachments)

Environment & monitoring

  • Tested ambient: −10 °C to +50 °C
  • MTBF: approx. 200,000 hours at 25 °C
  • CPU and PCB temperature monitoring
  • Voltage monitoring & RJ45 serial console port

Where does the CRS812 DDQ fit?

Thanks to its mix of 50G, 200G, and 400G interfaces, the CRS812 DDQ suits a wide range of high-throughput roles:

  • Top-of-rack or leaf switch with 400G uplinks to a spine fabric
  • Campus or data-center core bridging legacy 10G to modern 50G access
  • Service provider or carrier aggregation node
  • Labs, AI clusters, and media workflows with heavy east-west traffic

(CRS812-8DS-2DQ-2DDQ-RM)

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CRS812 DDQ

This switch is your next leap forward – a powerful, efficient, and cost-effective way to bring 50G, 200G, and 400G into your rack. Quad-core 2 GHz ARM CPU, dual-redundant power supplies and 4x hot-swap cooling fans, 2x 10G Ethernet, 8x 50G SFP56, 2x 200G QSFP56, and 2x 400G QSFP56-DD ports.

CRS812 DDQ

Highlights

  • 2x 400G QSFP56-DD ports
  • 2x 200G QSFP56 ports
  • 8x 50G SFP56 ports
  • 2x 1G/10G Ethernet ports

The CRS812 DDQ is your next leap forward -
a powerful, efficient, and cost-effective way to bring 50G, 200G, and 400G into your rack
400G used to mean expensive, complex, and out of reach.
The CRS812 DDQ changes that!

With a modern Marvell switch chip and powerful ARM CPU, it delivers advanced routing, switching, and traffic management features trusted in millions of RouterOS deployments – now with ports up to 400 Gbps!

Key Features

  • 4 GB of RAM
  • Quad-core 2 GHz ARM CPU
  • Dual-redundant hot-swap power supplies
  • 4x hot-swap cooling fans
  • RouterOS v7

Product Video


Where does it fit?
  • Top-of-rack / leaf switch with 400G uplinks to the spine
  • Campus core bridging 10G legacy with modern 50G interfaces
  • Service provider aggregation node
  • Labs, AI clusters, media workflows where fast “east-west” traffic is critical

Included Parts

2x IEC cords
2x IEC cords
Rackmount rear support ears (2/2)
Rackmount rear support ears (2/2)
Rackmount ears (CRS)
Rackmount ears (CRS)
K-82 fastening set
K-82 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.

Technical Specifications

Specifications
Product code
CRS812-8DS-2DQ-2DDQ-RM
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
-10°C to 50°C
Powering
Number of AC inputs
2
AC input range
100-240
Number of PSU slots
2
Frequency (Hz)
50-60
Max power consumption
134 W
Max power consumption without attachments
81 W
Cooling type
4 fans
Ethernet
Number of 1G/2.5G/5G/10G Ethernet ports
2 (supported: 10M/100M/1G/10G)
Number of 50G SFP56 ports
8
Number of 200G QSFP56 ports
2
Number of 400G QSFP56-DD ports
2
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

Documents & Resources

SKU CRS812-8DS-2DQ-2DDQ-RM
Brand MIKROTIK
Shipping Weight 2.0000kg

Manufacturer Warranty

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Mikrotik CRS812-8DS-2DQ-2DDQ-RM 2x 400G, 2x 200G, 8x 50G SFPs and 2x 10G Ethernet

Model # CRS812-8DS-2DQ-2DDQ-RM

  • SKU: CRS812-8DS-2DQ-2DDQ-RM

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