  We report a thorough theoretical investigation on the quantum transport of a
disordered four terminal device in the presence of Rashba spin orbit coupling
(RSOC) in two dimensions. Specifically we compute the behaviour of the
longitudinal (charge) conductance, spin Hall conductance and spin Hall
conductance fluctuation as a function of the strength of disorder and Rashba
spin orbit interaction using the Landauer Buttiker formalism via Green's
function technique. Our numerical calculations reveal that both the
conductances diminish with disorder. At smaller values of the RSOC parameter,
the longitudinal and spin Hall conductances increase, while both vanish in the
strong RSOC limit. The spin current is more drastically affected by both
disorder and RSOC than its charge counterpart. The spin Hall conductance
fluctuation does not show any universality in terms of its value and it depends
on both disorder as well as on the RSOC strength. Thus the spin Hall
conductance fluctuation has a distinct character compared to the fluctuation in
the longitudinal conductance. Further one parameter scaling theory is studied
to assess the transition to a metallic regime as claimed in literature and we
find no confirmation about the emergence of a metallic state induced by RSOC.
