Optical Networking, Redefined.


QSFPDD Optical Transceiver

400G Optical Transceiver Product Overview

Maximize port density, increase bandwidth and future-proof your data center with Precision OT’s diverse line of 400G QSFP-DD optical transceivers and AOC/DAC cables. Our cutting-edge product line enables increased 400Gb/s Ethernet speeds with transmission distances up to 10km for our direct detect transceiver products. Precision OT also offers coherent 400G transceiver modules that are capable to reach distances of hundreds of kilometers with amplification. 

Precision OT’s quad small form-factor pluggable – double density (QSFP-DD) modules allow for double density QSFP interconnects through an eight lane electrical interface. The eight lanes run at PAM4 50Gb/s each, allowing for 400G bandwidth effectively quadrupling the bandwidth when compared to its 4x25Gb/s QSFP28 counterpart.

As experts in all things optics, Precision OT ensures your unique networking needs are met. We offer a wide variety of 400G pluggables to meet both your current and future network architecture requirements. 

Product Categories


• RoHS Compliant
• Digital Diagnostic Monitoring
• Single Mode and Multi-Mode Fiber Transmission Mediums Available
• QSFP-DD MSA compliant
• PAM4 Electrical and Optical Channels
• Supports Tx/Rx speeds up to 400Gbps
• High bandwidth


400GBASE-X Ethernet
400G Data Center Interconnects (DCI)
400G to 4×100 Breakout Applications


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