Abstract In the minimal supersymmetric standard model (MSSM) extended by a singlet superfield. when the coupling between the singlet sector and the MSSM sector is tiny. the singlet sector can be a quasi dark sector with supersymmetry (SUSY). We investigate the cosmological phenomena in this scenario and obtain the following observations: (i) In the parameter space solving the small co... https://allfixelectricales.shop/product-category/fridge-power-supply-pcb/