The Arista Compatible 400G QSFP-DD QDD DR4 Optical Transceiver is a QSFP-DD optical transceiver delivering 425Gbps (4x106.25Gb/s) over SMF. Operating at 1310nm with a MPO-12/APC interface, it reaches 500m and is compliant with QSFP-DD MSA HW Rev 5.1, QSFP-DD CMIS Rev 5.0, IEEE 802.3bs. Built-in digital diagnostics give real-time access to operating parameters, making the module easy to deploy and maintain in 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

In 400G Ethernet data center and cloud network environments, the Arista Compatible 400G QSFP-DD QDD DR4 Optical Transceiver delivers 425Gbps (4x106.25Gb/s) transmission over SMF with a reach of 500m. The MPO-12/APC interface and 1310nm optics match the standard cabling plant used in modern data halls, so existing trunks can be reused. For networks standardized on Arista hardware, it is a drop-in equivalent of the QDD-400G-DR4.

This product is designed and tested to comply with QSFP-DD MSA HW Rev 5.1, QSFP-DD CMIS Rev 5.0, IEEE 802.3bs. It is interoperable with Arista equipment and serves as a direct equivalent to the Arista part number QDD-400G-DR4.

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.

Before any product leaves our factory it goes through optical performance testing, compatibility verification on real switch platforms and a final visual inspection. Our in-house test lab holds a wide range of current and legacy switches from major brands, so interoperability is proven on the actual equipment your network uses rather than assumed from paper specifications.

Each unit is sealed in an anti-static bag, cushioned in a blister tray and boxed in an export-grade carton. Outer cartons carry handling marks and can be palletized for air or sea freight. If your project requires retail boxes, barcodes or your own brand on the label, we can arrange that as well.

Our product line has grown with the industry for three decades, from GBIC-era modules to today's 800G and 1.6T interconnects. If the exact configuration you need is not listed, we can usually build it: custom lengths, mixed connector breakouts, OEM branding and project-specific firmware coding are all supported.

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.