The 400GBASE-SR8 module, MTP/MPO-16 connector, up to 100m over parallel OM4 multi-mode fiber. It is compliant to IEEE 802.3bs protocol and 400GAUI-8/CEI-56G-VSR-PAM4 standard.
The 400 Gigabit Ethernet signal is carried over eight wavelengths. And it can Support 2× 200G-SR4 and 8× 50G-SR.

Part Number: QDD-400G-SR8-S
Cisco QDD-400G-SR8-S Compatible 400GBASE-SR8 QSFP-DD PAM4 Optical Transceiver Module (MMF, 850nm, 100m, MTP/MPO, DOM)
Specifications
| Cisco Compatible | QDD-400G-SR8-S | Vendor Name | F-tone |
|---|---|---|---|
| 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 | -8.4dBm |
| 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 |
| MTBF | 1671961 Hours (@40°C, 90% CL) | Application | 400G Ethernet |
| Protocols | QSFP-DD MSA, CMIS 4.0, IEEE 802.3cd | Warranty | 5 Years |
This product belongs to F-tone Networks' optical components product line. For detailed specifications, please contact our sales team. Thank you!
Important Notice:
Performance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by F-tone Networks before they become applicable to any particular order or contract. In accordance with the F-tone Networks policy of continuous improvement specifications may change without notice.
The publication of information in this data sheet does not imply freedom from patent or other protective rights of F-tone Networks or others. Further details are available from any F-tone Networks sales representative.
