Hi User,
Super C band uses the ultra-wide C band (C120) in addition to the traditional C band (C80) and the extended C band (C96). It increases the available wavelength range
The extended C-band supports up to 96 wavelengths compared to the 80 wavelengths for traditional C-band for a 20% bandwidth improvement per fiber pair. For example, with 100Gbps wavelengths, the transmission bandwidth increases from 8Tbps to 9.6Tbps.
Thanks