The Cisco Compatible 400G QSFP-DD QDD DR4 Si Optical Transceiver is a hot-pluggable QSFP-DD transceiver rated at 425Gbps (4x106.25Gb/s). Using a MPO-12 (APC) optical interface over SMF at 1310nm, it covers transmission distances up to 500m. Compliance with QSFP-DD MSA, IEEE 802.3bs, CMIS 4.1, together with integrated diagnostic monitoring, makes it a dependable choice for 400G Ethernet data center and cloud network environments.

Product Highlights

• QSFP-DD form factor, 425Gbps (4x106.25Gb/s) data rate
• Wavelength: 1310nm
• Connector: MPO-12 (APC)
• Reach: up to 500m
• Fiber media: SMF
• DDM/DOM: Supported

The Cisco Compatible 400G QSFP-DD QDD DR4 Si Optical Transceiver is used in 400G Ethernet data center and cloud network environments, where it provides a 425Gbps (4x106.25Gb/s) link over SMF up to 500m. Digital diagnostics report transmit power, receive power and temperature in real time, which simplifies commissioning and ongoing maintenance. Compatibility with Cisco systems is verified in our own test lab before shipment, so the unit works out of the box as an equivalent of QDD-400G-DR4-S.

On the compatibility side, this unit is the practical equivalent of the Cisco part QDD-400G-DR4-S and works in Cisco systems out of the box. Standards compliance covers QSFP-DD MSA, IEEE 802.3bs, CMIS 4.1.

Order this product as QDD-DR4-400G-SI. Common models are stocked for fast dispatch. We can supply the module with neutral or customer-branded labels, and compatibility coding for a specific equipment vendor can be added at no extra process step.

Working directly with the manufacturer means no middleman limits. We support OEM and ODM projects, custom cable assemblies, alternative packaging and compatibility coding for major equipment vendors, with engineering support from the same team that designs our standard products.

Most orders travel by international express and arrive within days; palletized freight by air or sea is used for volume orders. If you prefer, we ship on your DHL, UPS or FedEx account, or deliver to your appointed agent in China for onward consolidation.

Production samples and every outgoing batch pass through bit-error-rate measurement, temperature verification and plug-in compatibility checks on mainstream switches and routers. Because we are the manufacturer, any issue found in testing is fed back to the production line immediately instead of being passed on to customers.

Products are first packed into blister trays or self-sealed bags and then into cartons. Standard labels and marks are applied by default, and customized packing and labeling are available on request.