800G QSFP-DD QDD800 XDR8 B1 Optical Transceiver

The 800G QSFP-DD QDD800 XDR8 B1 Optical Transceiver is a QSFP-DD optical transceiver delivering 850Gbps (8x 106.25Gbps) over SMF. Operating at 1310nm with a MTP/MPO-16 interface, it reaches 2km and is compliant with CMIS Rev 5.0, lEEE802.3ck, IEEE 802.3cu, QSFP-DD MSA. Built-in digital diagnostics give real-time access to operating parameters, making the module easy to deploy and maintain in 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

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 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

Our part number for this module is QDD800-XDR8-B1. When ordering, just let us know the quantity and whether you need the compatibility coding for a particular switch brand; labeling and packaging can also follow your channel requirements.

Factory Custom Capability

Working directly with the manufacturer means no middleman limits. We support OEM and ODM projects, custom cable assemblies, alternative packaging and compatibility coding for major equipment vendors, with engineering support from the same team that designs our standard products.

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.

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.