MikroTik DDQ+85MP01D QSFP-DD 400G SR8 MPO Optical Module

The MikroTik DDQ+85MP01D is the optical module that unlocks the full 400G potential of the CRS812 and CRS804 series — purpose-built for deployments where DAC cables fall short in reach or where structured fiber cabling is already in place.

The module uses a QSFP-DD form factor and delivers 400 Gbps aggregate bandwidth across 8 independent full-duplex channels, each running at 50 Gbps. The MTP/MPO-16 connector with Female-Female Type-B polarity is the standard for high-density 400G structured cabling, making the DDQ+85MP01D a direct fit for modern data centre fibre infrastructure without adapters or polarity converters.

The built-in digital diagnostics engine monitors optical transmit and receive power, supply voltage, temperature, and laser bias current in real time. Customizable thresholds trigger alerts when operating parameters approach limits — enabling scheduled maintenance and upgrade planning based on live performance data rather than reactive fault response.

Key features:

- QSFP-DD form factor — compatible with CRS812, CRS804, and any QSFP-DD port

- 400G aggregate bandwidth — 8 independent full-duplex channels × 50 Gbps per channel

- 850 nm multimode — supports distances up to 100m via OM4/OM5 multimode fiber

- MTP/MPO-16 connector — Female-Female Type-B polarity MTP/MPO-16 optical cable required

- Built-in digital diagnostics — real-time monitoring of optical power, voltage, temperature, and laser bias current

- Customizable operating limits — threshold-based alerting for abnormal activity detection

- Extends connectivity beyond DAC cable reach — ideal for cross-rack and inter-row links in structured cabling environments

- MTBF ~200,000 hours at 25°C

- Product code: DDQ+85MP01D

- Suggested price: USD 159.00

Compatible with: MikroTik CRS812, CRS804, and any platform with a QSFP-DD port supporting 400G SR8.

Note: Requires Female-Female Type-B polarity MTP/MPO-16 optical cable (not included). Not compatible with standard MTP/MPO-12 cables.

Ideal for: data centre core switching on CRS812 and CRS804 deployments, high-density inter-rack and top-of-rack 400G links, structured fiber cabling environments requiring distances beyond DAC reach (up to 100m), and any 400G deployment where built-in optical diagnostics are required for proactive maintenance planning.