  We obtain the brane setup describing 3d $\mathcal{N}=2$ dualities for
$USp(2N_c)$ and $U(N_c)$ SQCD with monopole superpotentials. This
classification follows from a complete analysis of affine and twisted affine
compactifications from 4d. The analysis leads to a new duality for the unitary
case that has been previously overlooked in the literature. We check this by
matching of the three sphere partition function of the two sides of this new
duality and find a perfect agreement. Furthermore we use the partition function
to predict new 3d $\mathcal{N}=2$ dualities for SQCD with monopole
superpotentials and tensorial matter.
