CiscoCisco Compatible 400G QSFP-DD QDD LR8 Optical Transceiver
The Cisco Compatible 400G QSFP-DD QDD LR8 Optical Transceiver is a hot-pluggable QSFP-DD transceiver rated at 425Gbps. Using a Duplex LC/UPC optical interface over SMF at 1310nm, it covers transmission distances up to 10km. Compliance with IEEE 802.3bs, QSFP-DD MSA, CMIS 4.1, 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, 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
In 400G Ethernet data center and cloud network environments, the Cisco Compatible 400G QSFP-DD QDD LR8 Optical Transceiver delivers 425Gbps transmission over SMF with a reach of 10km. The Duplex LC/UPC interface and 1310nm optics match the standard cabling plant used in modern data halls, so existing trunks can be reused. Compatibility with Cisco systems is verified in our own test lab before shipment, so the unit works out of the box as an equivalent of 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.
Packing Details
Standard packing is an anti-static bag plus blister protection, with cartons sized to keep products from moving in transit. We apply our standard labels by default; neutral packing or customer-branded labels, part number stickers and serial barcodes are all available on request.
Custom-made Fiber Products
As a manufacturer serving the fiber optic industry since 1995, we have strong in-house manufacturing and design capability. From early GBIC, Xenpak and X2 modules to today's SFP, SFP+, QSFP, QSFP-DD and OSFP products, we grow together with the industry. OEM and custom-designed transceivers and cables are welcome, and our factory-direct pricing is very competitive compared with online retail stores.
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.
Tested Before Shipment
We do not ship untested stock. Each transceiver and cable is powered up in our test racks, checked for link stability, transmit power, receiver sensitivity and diagnostic readouts, and only then packed for delivery. This factory-level testing is one reason network integrators keep reordering from us year after year.
