this is my Sabrent Rocket Q 500GB NVMe PCIe M.2 2280 Internal SSD High Performance Solid State Drive R/W 2000/1000MB/s (SB-RKTQ-500) , i currently have my OS on it, didn't know it would limit my transfer speeds to my other drive which has faster speeds than this.. anyways would amazon accept a used drive, if i wanted to upgrade to a 1tb version of this. also this is mainly used for gaming, not sure if r/w speeds matter so much.