Cisco Compatible 400G QSFP-DD QDD SR4.2 Optical Transceiver
The Cisco Compatible 400G QSFP-DD QDD SR4.2 Optical Transceiver is a QSFP-DD optical transceiver delivering 425Gbps over MMF. Operating at 850nm,910nm with a MTP/MPO-12 (UPC) interface, it reaches 70m@OM3/150m@OM5 and is compliant with QSFP-DD MSA, IEEE 802.3-2015. Built-in digital diagnostics give real-time access to operating parameters, making the module easy to deploy and maintain in 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
The Cisco Compatible 400G QSFP-DD QDD SR4.2 Optical Transceiver is used in 400G Ethernet data center and cloud network environments, where it provides a 425Gbps link over MMF up to 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
This product is designed and tested to comply with QSFP-DD MSA, IEEE 802.3-2015. It is interoperable with Cisco equipment and serves as a direct equivalent to the Cisco part number QDD-400G-SR4.2-BD.
Ordering Information
To order, quote QDD-SR4.2-400G together with your quantity. Stock items ship quickly; for OEM orders we support custom labels, retail packing and vendor-specific coding, all handled in our own factory.
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.
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.
Reliability Control
From incoming component inspection to final burn-in, quality is controlled at each step of production. Finished units are verified on real networking equipment in our compatibility lab, and test records are kept per batch so that any field question can be traced back quickly.
