The Cisco Compatible 400G QSFP-DD QDD LR8 Optical Transceiver is a hot-pluggable QSFP-DD transceiver rated at 425Gbps. Using a Duplex LC/UPC optical interface over SMF at 1310nm, it covers transmission distances up to 10km. Compliance with IEEE 802.3bs, QSFP-DD MSA, 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 data rate
• Wavelength: 1310nm
• Connector: Duplex LC/UPC
• Reach: up to 10km
• Fiber media: SMF
• DDM/DOM: Supported

Built for 400G Ethernet data center and cloud network environments, this QSFP-DD module carries 425Gbps over SMF up to 10km per link. The Duplex LC/UPC interface and 1310nm optics match the standard cabling plant used in modern data halls, so existing trunks can be reused. It is interoperable with Cisco platforms and replaces the Cisco part QDD-400G-LR8-S directly.

On the compatibility side, this unit is the practical equivalent of the Cisco part QDD-400G-LR8-S and works in Cisco systems out of the box. Standards compliance covers IEEE 802.3bs, QSFP-DD MSA, CMIS 4.1.

Order this product as QDD-LR8-400G. 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.

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.

Every unit we ship is tested in our own test bed on mainstream switch and transport platforms before packing. Our test center has been fully upgraded, which sets us apart from other third party product providers: 10G, 40G, 100G, 200G and 400G transceivers and direct attach cables are verified on the latest top brand equipment, including selected original switches that can hardly be found elsewhere.

Standard packing is an anti-static bag plus blister protection, with cartons sized to keep products from moving in transit. We apply our standard labels by default; neutral packing or customer-branded labels, part number stickers and serial barcodes are all available on request.

Because we are the factory, customization is straightforward: non-standard lengths, different jacket materials, specific polarity or breakout wiring, and compatibility programming for particular switch brands are all routine work for us. Small trial orders are accepted so you can verify quality before scaling up.