The Arista Compatible 400G QSFP-DD QDD ER4L Optical Transceiver is a hot-pluggable QSFP-DD transceiver rated at 400Gbps. Using a Duplex LC/UPC optical interface over SMF at 1310nm, it covers transmission distances up to 30km. Compliance with QSFP-DD MSA, CMIS Rev4.0, IEEE 802.3, IEEE 802.3bs, OIF 56G PAM4, together with integrated diagnostic monitoring, makes it a dependable choice for 400G Ethernet data center and cloud network environments.

Product Highlights

• QSFP-DD form factor, 400Gbps data rate
• Wavelength: 1310nm
• Connector: Duplex LC/UPC
• Reach: up to 30km
• Fiber media: SMF
• DDM/DOM: Supported

In 400G Ethernet data center and cloud network environments, the Arista Compatible 400G QSFP-DD QDD ER4L Optical Transceiver delivers 400Gbps transmission over SMF with a reach of 30km. The Duplex LC/UPC interface and 1310nm optics match the standard cabling plant used in modern data halls, so existing trunks can be reused. Custom labeling, packaging and compatibility coding for specific equipment vendors are available from our factory on request. The link runs 8x53.125G-PAM4 modulation, which keeps it aligned with current 400G switch silicon.

Compliance: QSFP-DD MSA, CMIS Rev4.0, IEEE 802.3, IEEE 802.3bs, OIF 56G PAM4. 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.

Order this product as QDD-ER4L-400G. Common models are stocked for fast dispatch. We can supply the module with neutral or customer-branded labels, and compatibility coding for a specific equipment vendor can be added at no extra process step.

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.

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.