Arista Compatible 400G QSFP-DD QDD SR8 Optical Transceiver
The Arista Compatible 400G QSFP-DD QDD SR8 Optical Transceiver is a QSFP-DD optical transceiver delivering 400Gbps over MMF. Operating at 850nm with a MPO-16/APC interface, it reaches 70m@OM3/100m@OM4 and is compliant with QSFP-DD MSA, CMIS 4.0, IEEE 802.3cd. 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: 850nm
- Connector: MPO-16/APC
- Reach: up to 70m@OM3/100m@OM4
- Fiber media: MMF
- DDM/DOM: Supported
Specifications
| Arista Networks Compatible | QDD-400G-SR8 |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP-DD |
| Max. Data Rate | 400Gbps |
| Wavelength | 850nm |
| Max. Cable Distance | 70m@OM3/100m@OM4 |
| Connector | MPO-16/APC |
| Media | MMF |
| Transmitter Type | VCSEL 850nm |
| Receiver Type | PIN |
| TX Power | -6.5~4dBm |
| Minimum Receiver Power | -8.4~4dBm |
| Power Budget | 1.9dB |
| Receiver Overload | 4dBm |
| Max. Power Consumption | 10W |
| Extinction Ratio | 3dB |
| DDM/DOM | Supported |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Modulation (Electrical) | 8x50G-PAM4 |
| Modulation (Optical) | 8x50G-PAM4 |
| DSP | TX and RX |
| Inbuilt FEC | No |
| Core Size | 50/125µm |
| Packaging Technology | COB (Chip on Board) Packaging |
| MTBF | 1671961 Hours (@40°C, 90% CL) |
| Application | 400G Ethernet |
| Protocols | QSFP-DD MSA, CMIS 4.0, IEEE 802.3cd |
Applications
Network architects choose the Arista Compatible 400G QSFP-DD QDD SR8 Optical Transceiver for 400G Ethernet data center and cloud network environments: it runs 400Gbps over MMF and reaches 70m@OM3/100m@OM4. Digital diagnostics report transmit power, receive power and temperature in real time, which simplifies commissioning and ongoing maintenance. It is interoperable with Arista Networks platforms and replaces the Arista Networks part QDD-400G-SR8 directly. The link runs 8x50G-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 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.
Ordering Information
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.
Factory Custom Capability
Working directly with the manufacturer means no middleman limits. We support OEM and ODM projects, custom cable assemblies, alternative packaging and compatibility coding for major equipment vendors, with engineering support from the same team that designs our standard products.
Shipping and Lead Time
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.
Quality Assurance
Before any product leaves our factory it goes through optical performance testing, compatibility verification on real switch platforms and a final visual inspection. Our in-house test lab holds a wide range of current and legacy switches from major brands, so interoperability is proven on the actual equipment your network uses rather than assumed from paper specifications.
How We Pack
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.
