Arista Compatible 400G QSFP-DD QDD SR4 Optical Transceiver

Designed for 400G Ethernet data center and cloud network environments, the Arista Compatible 400G QSFP-DD QDD SR4 Optical Transceiver provides 400Gbps throughput in a QSFP-DD form factor. It operates at 850nm over MMF through a MPO-12/APC connector and supports link lengths up to 30m@OM3/50m@OM4. The module meets QSFP-DD MSA, CMIS Rev5.0, IEEE 802.3df-2024 and includes digital diagnostic monitoring for live status readout.

Product Highlights

• QSFP-DD form factor, 400Gbps data rate
• Wavelength: 850nm
• Connector: MPO-12/APC
• Reach: up to 30m@OM3/50m@OM4
• Fiber media: MMF
• DDM/DOM: Supported

Built for 400G Ethernet data center and cloud network environments, this QSFP-DD module carries 400Gbps over MMF up to 30m@OM3/50m@OM4 per link. The MPO-12/APC interface and 850nm optics match the standard cabling plant used in modern data halls, so existing trunks can be reused. Our factory programs the compatibility coding for your switch brand before shipment and verifies each unit on real host equipment. The link runs 8x50G-PAM4 modulation, which keeps it aligned with current 400G switch silicon.

Standards compliance covers QSFP-DD MSA, CMIS Rev5.0, IEEE 802.3df-2024. The unit works in any equipment with a standard QSFP-DD interface; if your network uses a specific vendor's coding, tell us the switch model and we will program and verify it before delivery.

To order, quote QDD-SR4-400G 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.

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.

Because we are the factory, customization is straightforward: non-standard lengths, different jacket materials, specific polarity or breakout wiring, and compatibility programming for particular switch brands are all routine work for us. Small trial orders are accepted so you can verify quality before scaling up.

Our warehouse keeps fast-moving transceivers and cables ready for same-week dispatch. Courier, air freight and sea freight options are all available depending on your budget and schedule, and we consolidate multiple items into one shipment whenever it saves you cost.

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.