400G QSFP-DD QDD 4X100G FR Si Optical Transceiver

The 400G QSFP-DD QDD 4X100G FR Si Optical Transceiver is a hot-pluggable QSFP-DD transceiver rated at 400Gbps. Using a MPO-12 optical interface over SMF at 1310nm, it covers transmission distances up to 2km. Compliance with IEEE Std 802.3, QSFP-DD MSA, CMIS 4.0, 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, 400Gbps data rate
• Wavelength: 1310nm
• Connector: MPO-12
• Reach: up to 2km
• Fiber media: SMF
• DDM/DOM: Supported

In 400G Ethernet data center and cloud network environments, the 400G QSFP-DD QDD 4X100G FR Si Optical Transceiver delivers 400Gbps transmission over SMF with a reach of 2km. With its MPO-12 optical interface, the module works directly with the SMF infrastructure already installed in most facilities. Custom labeling, packaging and compatibility coding for specific equipment vendors are available from our factory on request.

Standards compliance covers IEEE Std 802.3, QSFP-DD MSA, CMIS 4.0. The unit works in any equipment with a standard QSFP-DD interface; if your network uses a specific vendor's coding, tell us the switch model and we will program and verify it before delivery.

Our part number for this module is QDD-4X100G-FR-Si. When ordering, just let us know the quantity and whether you need the compatibility coding for a particular switch brand; labeling and packaging can also follow your channel requirements.

We do not ship untested stock. Each transceiver and cable is powered up in our test racks, checked for link stability, transmit power, receiver sensitivity and diagnostic readouts, and only then packed for delivery. This factory-level testing is one reason network integrators keep reordering from us year after year.

Default packaging is simple and protective: sealed bag, blister tray, export carton. For OEM customers we also offer white-label packing, custom printed boxes and per-unit labeling with your own part numbers, so the goods can go straight into your sales channel.

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.