The Arista Compatible 400G QSFP-DD QDD ER4L Optical Transceiver is a QSFP-DD optical transceiver delivering 400Gbps over SMF. Operating at 1310nm with a Duplex LC/UPC interface, it reaches 30km and is compliant with QSFP-DD MSA, CMIS Rev4.0, IEEE 802.3, IEEE 802.3bs, OIF 56G PAM4. 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, 400Gbps data rate
- Wavelength: 1310nm
- Connector: Duplex LC/UPC
- Reach: up to 30km
- Fiber media: SMF
- DDM/DOM: Supported
Specifications
| Part Number | QDD-ER4L-400G |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP-DD |
| Max. Data Rate | 400Gbps |
| Wavelength | 1310nm |
| Max. Cable Distance | 30km |
| Connector | Duplex LC/UPC |
| Media | SMF |
| Transmitter Type | EML |
| Receiver Type | APD |
| TX Power | 0.4~6.5dBm |
| Minimum Receiver Power | -10.1dBm |
| Power Budget | 10.5dB |
| Receiver Overload | -3.4dB |
| Max Power Consumption | 12W |
| Extinction Ratio | 6dB |
| DDM/DOM | Supported |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Modulation (Electrical) | 8x53.125G-PAM4 |
| Modulation (Optical) | 4x106.25G-PAM4 |
| DSP | TX and RX |
| Inbuilt FEC | No |
| Bit Error Ratio (BER) | 2.4E-4 |
| MTBF | 2050000 Hours (@40°C, 60% CL) 818000 Hours (@40°C, 90% CL) 1300000 Hours (@55°C, 60% CL) 519000 Hours (@55°C, 90% CL) |
| Packaging Technology | BOX |
| Application | Data Center, Enterprise Networking, 400G Ethernet |
| Protocols | QSFP-DD MSA, CMIS Rev4.0, IEEE 802.3, IEEE 802.3bs, OIF 56G PAM4 |
Applications
Network architects choose the Arista Compatible 400G QSFP-DD QDD ER4L Optical Transceiver for 400G Ethernet data center and cloud network environments: it runs 400Gbps over SMF and reaches 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. If your project needs a specific vendor coding or custom label, our production line handles it as a routine step before packing. The link runs 8x53.125G-PAM4 modulation, which keeps it aligned with current 400G switch silicon.
Standards and Compatibility
This product is designed and tested to comply with QSFP-DD MSA, CMIS Rev4.0, IEEE 802.3, IEEE 802.3bs, OIF 56G PAM4. It plugs into any standards-based QSFP-DD port, and compatibility coding for specific switch or router brands can be done in our factory before shipment.
Ordering Information
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.
Tested Before Shipment
We do not ship untested stock. Each transceiver and cable is powered up in our test racks, checked for link stability, transmit power, receiver sensitivity and diagnostic readouts, and only then packed for delivery. This factory-level testing is one reason network integrators keep reordering from us year after year.
Packing Details
Standard packing is an anti-static bag plus blister protection, with cartons sized to keep products from moving in transit. We apply our standard labels by default; neutral packing or customer-branded labels, part number stickers and serial barcodes are all available on request.
Custom-made Fiber Products
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.
Logistics
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.
