If you are looking for quality / specific high end products forget, as there is none existing in Surat.
Even prices are always skewed higher side.
Compared to online / Mumbai / Delhi the prices are way high.
There are a few good places though, CPS peripherals / Exetera are famous ones There is one seagate distri in a building just opposite the Nanpura SBI banch in a lane where there is famous dosa place.
I purchase my required items from Mahavir Infotech, Sosyo Circle, Udhna - Magdalla Road.
@ANP your inputs will be valuable here.