MikroTik DDQ+85MP01D QSFP-DD 400G MPO Optical Module
The MikroTik DDQ+85MP01D is a QSFP-DD 400G optical transceiver module designed for high-speed fibre connections in ultra-fast network environments such as the CRS812 DDQ and CRS804 DDQ. Using an MTP/MPO connector with 850nm multimode optics, it is ideal for 400G deployments where direct-attach cable (DAC) reach is insufficient. The module features built-in digital diagnostics monitoring — covering optical power, voltage, temperature, and laser bias current — for proactive health monitoring in demanding data centre and core network installations. An MTBF of approximately 200,000 hours at 25°C ensures long-term reliability.
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The MikroTik DDQ+85MP01D is a QSFP-DD (Quad Small Form-factor pluggable Double Density) 400G optical transceiver module purpose-built for high-density, ultra-high-speed fibre interconnects in modern data centre and core network environments. It slots directly into QSFP-DD ports on MikroTik's latest 400G-capable switches, including the CRS812 DDQ and CRS804 DDQ, unlocking full 400G optical connectivity where direct-attach copper or breakout cables cannot reach.
400G Optical Performance
Operating at 850nm over multimode fibre, the DDQ+85MP01D delivers 400 Gigabit connectivity via its MTP/MPO interface — providing the high-bandwidth, low-latency fibre links required in spine-leaf architectures, high-performance computing clusters, storage interconnects, and other latency-sensitive, bandwidth-intensive environments where DAC or active optical cables fall short on distance.
MTP/MPO Connector — Important Compatibility Note
The module uses an MTP/MPO connector interface. It requires a Female-Female Type-B polarity MTP/MPO fibre cable for correct operation. Installers and network engineers should ensure the correct cable polarity is used during deployment to avoid connectivity issues.
Built-in Digital Diagnostics (DDM/DOM)
The DDQ+85MP01D includes comprehensive built-in digital diagnostics monitoring (DDM/DOM), providing real-time visibility into key module health parameters including optical transmit and receive power levels, supply voltage, operating temperature, and laser bias current. This allows network administrators to proactively monitor transceiver health, identify potential issues before they cause outages, and maintain full visibility over the optical layer of their network infrastructure.
Designed for MikroTik's 400G Ecosystem
As part of MikroTik's growing 400G product ecosystem, the DDQ+85MP01D is the companion optical module for the CRS812 DDQ and CRS804 DDQ high-density switches. For deployments where fibre is preferred over DAC breakout cables — particularly at longer intra-rack or inter-rack distances — this module provides a reliable, standards-compliant optical solution.
Key Specifications at a Glance:
- Product Code: DDQ+85MP01D
- Form Factor: QSFP-DD
- Speed: 400G
- Wavelength: 850nm (multimode)
- Connector: MTP/MPO (requires Female-Female Type-B polarity cable)
- Features: Built-in digital diagnostics (optical power, voltage, temperature, laser bias current)
- Compatible With: CRS812 DDQ, CRS804 DDQ, and other QSFP-DD 400G-equipped devices
- MTBF: ~200,000 hours at 25°C
- Product code
- DDQ+85MP01D
- Format
- QSFP -DD
