I am a teenager with a limited budget. I need a fast SSD for my windows 10. I have recently came across add on Olx ( pakistan ebay) and he offered me corsair sata 3 Force GT 240 SSD for decent price of 45$. But I have yet to make mind. Is it good idea to buy used ssd? Should I trust anonymous? And when I meet him what software I use to test quality of ssd?