Cisco Compatible 400G QSFP-DD QDD LR8 Optical Transceiver
Designed for 400G Ethernet data center and cloud network environments, the Cisco Compatible 400G QSFP-DD QDD LR8 Optical Transceiver provides 425Gbps throughput in a QSFP-DD form factor. It operates at 1310nm over SMF through a Duplex LC/UPC connector and supports link lengths up to 10km. The module meets IEEE 802.3bs, QSFP-DD MSA, CMIS 4.1 and includes digital diagnostic monitoring for live status readout.
Product Highlights
- QSFP-DD form factor, 425Gbps data rate
- Wavelength: 1310nm
- Connector: Duplex LC/UPC
- Reach: up to 10km
- Fiber media: SMF
- DDM/DOM: Supported
Specifications
| Cisco Compatible | QDD-400G-LR8-S |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP-DD |
| Max. Data Rate | 425Gbps |
| Wavelength | 1310nm |
| Max. Cable Distance | 10km |
| Connector | Duplex LC/UPC |
| Media | SMF |
| Transmitter Type | LWDM EML |
| Receiver Type | PIN |
| TX Power | -2.8~5.3dBm |
| Minimum Receiver Power | -9.1dBm |
| Power Budget | 6.3dB |
| Receiver Overload | 5.3dBm |
| Max. Power Consumption | 10W |
| Extinction Ratio | 3.5dB |
| 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 | G.652/9um |
| Packaging Technology | BOX |
| Protocols | IEEE 802.3bs, QSFP-DD MSA, CMIS 4.1 |
Applications
The Cisco Compatible 400G QSFP-DD QDD LR8 Optical Transceiver is used in 400G Ethernet data center and cloud network environments, where it provides a 425Gbps link over SMF up to 10km. With its Duplex LC/UPC optical interface, the module works directly with the SMF infrastructure already installed in most facilities. For networks standardized on Cisco hardware, it is a drop-in equivalent of the QDD-400G-LR8-S.
Standards and Compatibility
This product is designed and tested to comply with IEEE 802.3bs, QSFP-DD MSA, CMIS 4.1. It is interoperable with Cisco equipment and serves as a direct equivalent to the Cisco part number QDD-400G-LR8-S.
Ordering Information
Our part number for this module is QDD-LR8-400G. When ordering, just let us know the quantity and whether you need the compatibility coding for a particular switch brand; labeling and packaging can also follow your channel requirements.
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.
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.
Our Testing Process
Production samples and every outgoing batch pass through bit-error-rate measurement, temperature verification and plug-in compatibility checks on mainstream switches and routers. Because we are the manufacturer, any issue found in testing is fed back to the production line immediately instead of being passed on to customers.
Package
Products are first packed into blister trays or self-sealed bags and then into cartons. Standard labels and marks are applied by default, and customized packing and labeling are available on request.
