
The 800G QSFP-DD QDD800 XDR8 B1 Optical Transceiver is a hot-pluggable QSFP-DD transceiver rated at 850Gbps (8x 106.25Gbps). Using a MTP/MPO-16 optical interface over SMF at 1310nm, it covers transmission distances up to 2km. Compliance with CMIS Rev 5.0, lEEE802.3ck, IEEE 802.3cu, QSFP-DD MSA, 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: 1310nm
- Connector: MTP/MPO-16
- Reach: up to 2km
- Fiber media: SMF
Specifications
| Part Number | QDD800-XDR8-B1 |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP-DD |
| Max Data Rate | 850Gbps (8x 106.25Gbps) |
| Wavelength | 1310nm |
| Max Cable Distance | 2km |
| Connector | MTP/MPO-16 |
| Media | SMF |
| Transmitter Type | EML |
| Receiver Type | PIN |
| TX Power | -3.1~4dBm |
| Minimum Receiver Power | -7.1dBm |
| Power Budget | 4dB |
| Receiver Overload | 4dBm |
| Max Power Consumption | 18W |
| Extinction Ratio | >3.5dB |
| Packaging Technology | COB (Chip on Board) Packaging |
| Modulation Format | PAM4 |
| CDR (Clock and Data Recovery) | TX and RX Built-in DSP |
| Inbuilt FEC | No |
| Protocols | CMIS Rev 5.0, lEEE802.3ck, IEEE 802.3cu, QSFP-DD MSA |
Applications
In 800G Ethernet data center and cloud network environments, the 800G QSFP-DD QDD800 XDR8 B1 Optical Transceiver delivers 850Gbps (8x 106.25Gbps) transmission over SMF with a reach of 2km. The MTP/MPO-16 interface and 1310nm optics match the standard cabling plant used in modern data halls, so existing trunks can be reused. Our factory programs the compatibility coding for your switch brand before shipment and verifies each unit on real host equipment.
Standards and Compatibility
Standards compliance covers CMIS Rev 5.0, lEEE802.3ck, IEEE 802.3cu, QSFP-DD MSA. The unit works in any equipment with a standard QSFP-DD interface; if your network uses a specific vendor's coding, tell us the switch model and we will program and verify it before delivery.
Ordering Information
To order, quote QDD800-XDR8-B1 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.
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.
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.



