DustPhotonics' 400G QSFP-DD DR4 is an ideal solution for data center interconnects. It employs PAM4 modulation technology to deliver data rates up 400G (8x50Gb/s electrical interfaces).
The design provides an 8-lane electrical interface compared to the traditional four-lane interface, thereby increasing bandwidth, channel capacity and port density. The module converts 8 channels of 50Gb/s (PAM4) electrical input data to 4 channels of parallel optical signals, each capable of 100Gb/s operation for an aggregate data rate of up to 400Gb/s. Reversely, on the receiver side, the module converts 4 channels of parallel optical signals of 100Gb/s each channel for an aggregate data rate of 400Gb/s into 8 channels of 50Gb/s (PAM4) electrical output data.