
Designed for 200G Ethernet data center and cloud network environments, the 200G QSFP-DD QDD SR4 2x100G Optical Transceiver provides 206.24Gbps(8x 25.78Gbps) throughput in a QSFP-DD form factor. It operates at 850nm over MMF through a MPO-24/UPC connector and supports link lengths up to 100m. The module meets IEEE 802.3bm, QSFP-DD MSA Compliant, CMIS 4.0 and includes digital diagnostic monitoring for live status readout.
Product Highlights
- QSFP-DD form factor, 206.24Gbps(8x 25.78Gbps) data rate
- Wavelength: 850nm
- Connector: MPO-24/UPC
- Reach: up to 100m
- Fiber media: MMF
- DDM/DOM: Supported
Specifications
| Dell Compatible | Q28DD-200G-2SR4 |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP-DD |
| Max. Data Rate | 206.24Gbps(8x 25.78Gbps) |
| Wavelength | 850nm |
| Max. Cable Distance | 100m |
| Connector | MPO-24/UPC |
| Media | MMF |
| Transmitter Type | VCSEL |
| Receiver Type | PIN |
| TX Power | -8.4~2.4dBm |
| Minimum Receiver Power | -10.3dBm |
| Power Budget | 1.9dB |
| Receiver Overload | 3.4dBm |
| Max. Power Consumption | 4.5W |
| Extinction Ratio | >2dB |
| DDM/DOM | Supported |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Modulation (Electrical) | 8x25G-NRZ |
| Modulation (Optical) | 8x25G-NRZ |
| CDR (Clock and Data Recovery) | TX & RX Built-in CDR |
| Inbuilt FEC | No |
| Protocols | IEEE 802.3bm, QSFP-DD MSA Compliant, CMIS 4.0 |
Applications
The 200G QSFP-DD QDD SR4 2x100G Optical Transceiver is used in 200G Ethernet data center and cloud network environments, where it provides a 206.24Gbps(8x 25.78Gbps) link over MMF up to 100m. With its MPO-24/UPC optical interface, the module works directly with the MMF infrastructure already installed in most facilities. It is interoperable with Dell platforms and replaces the Dell part Q28DD-200G-2SR4 directly.
Standards and Compatibility
This product is designed and tested to comply with IEEE 802.3bm, QSFP-DD MSA Compliant, CMIS 4.0. It is interoperable with Dell equipment and serves as a direct equivalent to the Dell part number Q28DD-200G-2SR4.
Ordering Information
Order this product as QDD-SR4-2X100G. 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.
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.
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.
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.
How We Ship
Most orders travel by international express and arrive within days; palletized freight by air or sea is used for volume orders. If you prefer, we ship on your DHL, UPS or FedEx account, or deliver to your appointed agent in China for onward consolidation.



