This paper presents a dual switch non-isolated high gain DC-DC converter. The proposed converter utilizes both boost switched capacitor structure and buck-boost switched capacitor structure adopted in a quasi-switched-boost structure circuit to offer high voltage gain. The above adoption results a small voltage stress on all the semiconductor devices and reduced conduction loss due to small duty ratio for large voltage conversion ratio applications. A detailed steady state analysis of the converter is presented in this paper. A prototype model of 200V, 100W is also fabricated in laboratory to evaluate and to compare the performance. © 2019 IEEE.