Cisco 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. With its MTP/MPO-12 (UPC) optical interface, the module works directly with the MMF infrastructure already installed in most facilities. 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
Compliance: QSFP-DD MSA, IEEE 802.3-2015. For projects standardized on Cisco hardware, this product replaces the QDD-400G-SR4.2-BD directly, with identical fit and function. Every unit's EEPROM coding and link behavior are verified on real host equipment in our lab, so what arrives at your site is ready to use.
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.
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.
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.
Packaging
Each unit is sealed in an anti-static bag, cushioned in a blister tray and boxed in an export-grade carton. Outer cartons carry handling marks and can be palletized for air or sea freight. If your project requires retail boxes, barcodes or your own brand on the label, we can arrange that as well.
