Upgrade Your Network One Site at a Time
Upgrade just one site to 400G gear, and still connect it to the existing 100G sites.
- Connect New 400G Sites to Legacy 100G Sites
- Full Utilize Your 400G Port Bandwidth
- Re-use 100G Optics in New 400G Ports

Arista Networks Compatible 400GBASE-FR QSFP-DD 8 x 50G PAM4 1310nm 2km MPO-12/APC SMF SiPh-Based Transceiver Module, Product Specification:Part Number - QDD-4X100G-FR-Si, Vendor Name - FS, Form Factor - QSFP-DD, Max. Data Rate - 400Gbps, Wavelength - 1310nm, Max. Cable Distance - 2km
| Part Number | QDD-4X100G-FR-Si |
| Vendor Name | FS |
| Form Factor | QSFP-DD |
| Max. Data Rate | 400Gbps |
| Wavelength | 1310nm |
| Max. Cable Distance | 2km |
| Connector | MPO-12 |
| Media | SMF |
| Transmitter Type | CW DFB |
| Receiver Type | PIN |
| TX Power | -3.1~4.0dBm |
| Minimum Receiver Power | -7.1dBm |
| Power Budget | 4dB |
| Receiver Overload | 4.0dBm |
| Max. Power Consumption | 11W |
| Extinction Ratio | 3.5dB |
| DDM/DOM | Supported |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Modulation (Electrical) | 8x50G-PAM4 |
| Modulation (Optical) | 4x100G-PAM4 |
| DSP | TX and RX |
| Inbuilt FEC | Support |
| Core Size | 9um/125um |
| Packaging Technology | TO-CAN for CW laser |
| Protocols | IEEE Std 802.3, QSFP-DD MSA, CMIS 4.0 |
| Warranty | 5 Years |
Upgrade just one site to 400G gear, and still connect it to the existing 100G sites.
Increase network uptime with silicon photonics that reduces cost of ownership.
The FS 400G QSFP-DD 4xFR modules are tested on Arista original devices to ensure the perfect blend of product performance and reliability. Including hardware compatibility (plugging, unplugging, rebooting), software compatibility (connectivity, parametres).
Every unit is quality tested for compatibility in the targeted switch environment, which guarantees flawless operations. Check compatibility with our <a href="/de-en/tool/compatibility-tool-h0026">Optics-to-Device Compatibility Tool</a>.<br/>
Qualified through a rigorous process with advanced equipments to ensure you get the high quality and reliable optics.
Reconfiguring the transceiver to work with different brands, <a href="/de-en/products/156801.html" >FS BOX</a> offers flexibility in stock costs.