Novikov superalgebras are related to quadratic conformal superalgebras which correspond to the Hamiltonian pairs and play a fundamental role in completely integrable systems. In this note we show that the Novikov superalgebras with $A_0=A_1{A}_1$ and $dim{A}_1=2$ are of type $N$ and give a class of Novikov superalgebras of type $S$ with $A_0=A_1{A}_1$.