CiscoCisco Compatible 400G QSFP-DD QDD SR4.2 Optical Transceiver
The Cisco Compatible 400G QSFP-DD QDD SR4.2 Optical Transceiver is a hot-pluggable QSFP-DD transceiver rated at 425Gbps. Using a MTP/MPO-12 (UPC) optical interface over MMF at 850nm,910nm, it covers transmission distances up to 70m@OM3/150m@OM5. Compliance with QSFP-DD MSA, IEEE 802.3-2015, 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: 850nm,910nm
- Connector: MTP/MPO-12 (UPC)
- Reach: up to 70m@OM3/150m@OM5
- Fiber media: MMF
- DDM/DOM: Supported
Specifications
| Cisco Compatible | QDD-400G-SR4.2-BD |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP-DD |
| Max. Data Rate | 425Gbps |
| Wavelength | 850nm,910nm |
| Max. Cable Distance | 70m@OM3/150m@OM5 |
| Connector | MTP/MPO-12 (UPC) |
| Media | MMF |
| Transmitter Type | VCSEL 850nm |
| Receiver Type | PIN |
| TX Power | -6.5dBm~4dBm |
| Minimum Receiver Power | -8.5dBm |
| Power Budget | 2dB |
| Receiver Overload | 4dBm |
| Max. Power Consumption | 12W |
| 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 |
| Protocols | QSFP-DD MSA, IEEE 802.3-2015 |
Applications
Network architects choose the Cisco Compatible 400G QSFP-DD QDD SR4.2 Optical Transceiver for 400G Ethernet data center and cloud network environments: it runs 425Gbps over MMF and reaches 70m@OM3/150m@OM5. Digital diagnostics report transmit power, receive power and temperature in real time, which simplifies commissioning and ongoing maintenance. 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-SR4.2-BD.
Standards and Compatibility
On the compatibility side, this unit is the practical equivalent of the Cisco part QDD-400G-SR4.2-BD and works in Cisco systems out of the box. Standards compliance covers QSFP-DD MSA, IEEE 802.3-2015.
Ordering Information
Order this product as QDD-SR4.2-400G. Common models are stocked for fast dispatch. We can supply the module with neutral or customer-branded labels, and compatibility coding for a specific equipment vendor can be added at no extra process step.
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.
OEM and Custom Orders
We have manufactured fiber optic connectivity products since 1995 and run our own production lines in Shenzhen. Beyond the standard catalog we build to order: special cable lengths, custom connector combinations, vendor-specific compatibility coding and private labeling. Send us your requirement and our engineers will quote a practical solution.
Worldwide Delivery
We ship to customers around the world every week. Express couriers handle most orders door to door in a few days; larger consignments go by air or sea to keep freight costs down. Tracking information is provided for every shipment, and we are flexible on shipping accounts and forwarders.
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.
