AristaArista Compatible 400G QSFP-DD QDD SR8 Optical Transceiver
The Arista Compatible 400G QSFP-DD QDD SR8 Optical Transceiver is a hot-pluggable QSFP-DD transceiver rated at 400Gbps. Using a MPO-16/APC optical interface over MMF at 850nm, it covers transmission distances up to 70m@OM3/100m@OM4. Compliance with QSFP-DD MSA, CMIS 4.0, IEEE 802.3cd, 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: 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. With its MPO-16/APC optical interface, the module works directly with the MMF infrastructure already installed in most facilities. 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
Compliance: QSFP-DD MSA, CMIS 4.0, IEEE 802.3cd. For projects standardized on Arista Networks hardware, this product replaces the QDD-400G-SR8 directly, with identical fit and function. 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.
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.
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.
Customization Service
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.
Delivery
Goods are normally sent by courier such as DHL, UPS, FedEx, TNT or EMS; air and sea freight are also available on request. Commonly used items are kept in stock for immediate shipment, and out-of-stock items are usually delivered within a few working days. We can also ship on your courier account or hand goods to your appointed forwarder.
Reliability Control
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.
