Arista Compatible 400G QSFP-DD QDD LR4 Optical Transceiver

Designed for 400G Ethernet data center and cloud network environments, the Arista Compatible 400G QSFP-DD QDD LR4 Optical Transceiver provides 425Gbps (4x 106.25Gbps) throughput in a QSFP-DD form factor. It operates at 1271nm, 1291nm, 1311nm, and 1331nm over SMF through a Duplex LC/UPC connector and supports link lengths up to 10km. The module meets QSFP-DD MSA HW Rev 5.1, QSFP-DD, CMIS Rev 5.0, IEEE 802.3cu, 100G Lambda MSA and includes digital diagnostic monitoring for live status readout.

Product Highlights

• QSFP-DD form factor, 425Gbps (4x 106.25Gbps) data rate
• Wavelength: 1271nm, 1291nm, 1311nm, and 1331nm
• 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 (4x 106.25Gbps) over SMF up to 10km per link. Digital diagnostics report transmit power, receive power and temperature in real time, which simplifies commissioning and ongoing maintenance. Compatibility with Arista Networks systems is verified in our own test lab before shipment, so the unit works out of the box as an equivalent of QDD-400G-LR4. 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 HW Rev 5.1, QSFP-DD, CMIS Rev 5.0, IEEE 802.3cu, 100G Lambda MSA. It is interoperable with Arista Networks equipment and serves as a direct equivalent to the Arista Networks part number QDD-400G-LR4.

To order, quote QDD-LR4-400G 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.

From incoming component inspection to final burn-in, quality is controlled at each step of production. Finished units are verified on real networking equipment in our compatibility lab, and test records are kept per batch so that any field question can be traced back quickly.

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.

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.

Standard products are held in stock and usually ship within one to three working days. We dispatch worldwide by DHL, UPS, FedEx, TNT or EMS, and for bulk orders we arrange air or sea freight. Shipments can also be sent collect on your own courier account or delivered to your freight forwarder.