Arista Compatible 400G QSFP-DD QDD DR4 Optical Transceiver

Designed for 400G Ethernet data center and cloud network environments, the Arista Compatible 400G QSFP-DD QDD DR4 Optical Transceiver provides 425Gbps (4x106.25Gb/s) throughput in a QSFP-DD form factor. It operates at 1310nm over SMF through a MPO-12/APC connector and supports link lengths up to 500m. The module meets QSFP-DD MSA HW Rev 5.1, QSFP-DD CMIS Rev 5.0, IEEE 802.3bs and includes digital diagnostic monitoring for live status readout.

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 Arista Compatible 400G QSFP-DD QDD DR4 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. With its MPO-12/APC optical interface, the module works directly with the SMF infrastructure already installed in most facilities. Compatibility with Arista 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. The link runs PAM4 modulation, which keeps it aligned with current 400G switch silicon.

Compliance: QSFP-DD MSA HW Rev 5.1, QSFP-DD CMIS Rev 5.0, IEEE 802.3bs. For projects standardized on Arista hardware, this product replaces the QDD-400G-DR4 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-DR4-400G. 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.

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.

We ship to customers around the world every week. Express couriers handle most orders door to door in a few days; larger consignments go by air or sea to keep freight costs down. Tracking information is provided for every shipment, and we are flexible on shipping accounts and forwarders.

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.

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.