Arista Compatible 400G QSFP-DD QDD SR8 Optical Transceiver

Designed for 400G Ethernet data center and cloud network environments, the Arista Compatible 400G QSFP-DD QDD SR8 Optical Transceiver provides 400Gbps throughput in a QSFP-DD form factor. It operates at 850nm over MMF through a MPO-16/APC connector and supports link lengths up to 70m@OM3/100m@OM4. The module meets QSFP-DD MSA, CMIS 4.0, IEEE 802.3cd and includes digital diagnostic monitoring for live status readout.

Product Highlights

• QSFP-DD form factor, 400Gbps data rate
• Wavelength: 850nm
• Connector: MPO-16/APC
• Reach: up to 70m@OM3/100m@OM4
• Fiber media: MMF
• DDM/DOM: Supported

The Arista Compatible 400G QSFP-DD QDD SR8 Optical Transceiver is used in 400G Ethernet data center and cloud network environments, where it provides a 400Gbps link over MMF up to 70m@OM3/100m@OM4. The MPO-16/APC interface and 850nm optics match the standard cabling plant used in modern data halls, so existing trunks can be reused. For networks standardized on Arista Networks hardware, it is a drop-in equivalent of the QDD-400G-SR8. The link runs 8x50G-PAM4 modulation, which keeps it aligned with current 400G switch silicon.

This product is designed and tested to comply with QSFP-DD MSA, CMIS 4.0, IEEE 802.3cd. It is interoperable with Arista Networks equipment and serves as a direct equivalent to the Arista Networks part number QDD-400G-SR8.

To order, quote QDD-SR8-400G together with your quantity. Stock items ship quickly; for OEM orders we support custom labels, retail packing and vendor-specific coding, all handled in our own factory.

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.

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.

As a manufacturer serving the fiber optic industry since 1995, we have strong in-house manufacturing and design capability. From early GBIC, Xenpak and X2 modules to today's SFP, SFP+, QSFP, QSFP-DD and OSFP products, we grow together with the industry. OEM and custom-designed transceivers and cables are welcome, and our factory-direct pricing is very competitive compared with online retail stores.