Hi there!
The throughput of submarine links depends on the single-wavelength rate, number of channels, and number of fibers. Currently, Huawei submarine cable boards support a maximum of 400 Gbit/s per wavelength. WDM-side optical signals can be adjusted within the range of 96 wavelengths with 50 GHz spacing in the extended C band. That is, the throughput of each pair of optical cables is: 400G×96=38.4T
Thanks!