The 400G QSFP-DD QDD ZRPH 400GM Optical Transceiver is a QSFP-DD optical transceiver delivering 100G-31.5Gbaud（OTN STD） 200G-31.5Gbaud（OTN STD） 200G-63 Gbaud（OTN STD） 400G-63 Gbaud（OTN STD） 400G ZR 400G ZR+ over SMF. Operating at 1528.58-1567.54nm with a Duplex LC/UPC interface, it reaches its rated distance and is compliant with Open ZR+ MSA R1.0 and OTN, OIF 400ZR OIF-400ZR-01.0 and IEEE802.3cw R2.3 coherent standard, CMIS Rev 5.0, OIF C-CMIS 1.1. Built-in digital diagnostics give real-time access to operating parameters, making the module easy to deploy and maintain in data center interconnect, metro transport and carrier aggregation networks.

Product Highlights

• QSFP-DD form factor, 100G-31.5Gbaud（OTN STD） 200G-31.5Gbaud（OTN STD） 200G-63 Gbaud（OTN STD） 400G-63 Gbaud（OTN STD） 400G ZR 400G ZR+ data rate
• Wavelength: 1528.58-1567.54nm
• Connector: Duplex LC/UPC
• Fiber media: SMF
• DDM/DOM: Support
• Operating temperature: 0°C to 75°C

The 400G QSFP-DD QDD ZRPH 400GM Optical Transceiver is used in data center interconnect, metro transport and carrier aggregation networks, where it provides a 100G-31.5Gbaud（OTN STD） 200G-31.5Gbaud（OTN STD） 200G-63 Gbaud（OTN STD） 400G-63 Gbaud（OTN STD） 400G ZR 400G ZR+ link over SMF up to its rated distance. The Duplex LC/UPC interface and 1528.58-1567.54nm optics match the standard cabling plant used in modern data halls, so existing trunks can be reused. For networks standardized on Ciena hardware, it is a drop-in equivalent of the 180-3360-900. The link runs QPSK/16QAM modulation, which keeps it aligned with current 400G switch silicon.

Compliance: Open ZR+ MSA R1.0 and OTN, OIF 400ZR OIF-400ZR-01.0 and IEEE802.3cw R2.3 coherent standard, CMIS Rev 5.0, OIF C-CMIS 1.1. For projects standardized on Ciena hardware, this product replaces the 180-3360-900 directly, with identical fit and function. Every unit's EEPROM coding and link behavior are verified on real host equipment in our lab, so what arrives at your site is ready to use.

Our part number for this module is QDD-ZRPH-400GM. 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.

Transceivers and cables are individually protected against static and dust, then consolidated into sturdy cartons suitable for international courier shipment. For larger orders we shrink-wrap and strap cartons onto pallets. Tell us your warehouse or retail requirements and we will pack accordingly.

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.

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.