Cisco Compatible 800G QSFP-DD QDD 2FR4 Optical Transceiver
The Cisco Compatible 800G QSFP-DD QDD 2FR4 Optical Transceiver is a hot-pluggable QSFP-DD transceiver rated at 850Gbps (8x 106.25Gbps). Using a Dual Duplex LC/UPC optical interface over SMF at 1271nm, 1291nm, 1311nm and 1331nm, it covers transmission distances up to 2km. Compliance with IEEE 802.3cu-2021, IEEE 802.3ck-2022, QSFP-DD MSA HW Rev 6.01, CMIS Rev 5.0, together with integrated diagnostic monitoring, makes it a dependable choice for 800G Ethernet data center and cloud network environments.
Product Highlights
- QSFP-DD form factor, 850Gbps (8x 106.25Gbps) data rate
- Wavelength: 1271nm, 1291nm, 1311nm and 1331nm
- Connector: Dual Duplex LC/UPC
- Reach: up to 2km
- Fiber media: SMF
Specifications
| Cisco Compatible | QDD-2X400G-FR4 |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP-DD |
| Max Data Rate | 850Gbps (8x 106.25Gbps) |
| Wavelength | 1271nm, 1291nm, 1311nm and 1331nm |
| Max Cable Distance | 2km |
| Connector | Dual Duplex LC/UPC |
| Media | SMF |
| Transmitter Type | EML |
| Receiver Type | PIN |
| TX Power | -3.2~4.4dBm |
| Minimum Receiver Power | -7.2dBm |
| Power Budget | 4dB |
| Receiver Overload | 4.4dBm |
| Max Power Consumption | 17W |
| Extinction Ratio | ≥3.5dB |
| Modulation (Electrical) | 8x100G-PAM4 |
| Modulation (Optical) | 8x100G-PAM4 |
| Packaging Technology | COB (Chip on Board) Packaging |
| CDR (Clock and Data Recovery) | TX and RX Built-in DSP |
| Inbuilt FEC | No |
| Protocols | IEEE 802.3cu-2021, IEEE 802.3ck-2022, QSFP-DD MSA HW Rev 6.01, CMIS Rev 5.0 |
Applications
Built for 800G Ethernet data center and cloud network environments, this QSFP-DD module carries 850Gbps (8x 106.25Gbps) over SMF up to 2km per link. The Dual Duplex LC/UPC interface and 1271nm, 1291nm, 1311nm and 1331nm optics match the standard cabling plant used in modern data halls, so existing trunks can be reused. For networks standardized on Cisco hardware, it is a drop-in equivalent of the QDD-2X400G-FR4.
Standards and Compatibility
On the compatibility side, this unit is the practical equivalent of the Cisco part QDD-2X400G-FR4 and works in Cisco systems out of the box. Standards compliance covers IEEE 802.3cu-2021, IEEE 802.3ck-2022, QSFP-DD MSA HW Rev 6.01, CMIS Rev 5.0.
Ordering Information
Order this product as QDD-2FR4-800G. 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.
How We Pack
Transceivers and cables are individually protected against static and dust, then consolidated into sturdy cartons suitable for international courier shipment. For larger orders we shrink-wrap and strap cartons onto pallets. Tell us your warehouse or retail requirements and we will pack accordingly.
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.
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.
Quality Assurance
Before any product leaves our factory it goes through optical performance testing, compatibility verification on real switch platforms and a final visual inspection. Our in-house test lab holds a wide range of current and legacy switches from major brands, so interoperability is proven on the actual equipment your network uses rather than assumed from paper specifications.
