There are total 3 units of non-working SSDs, which are Toshiba, SP, Team Group 512 GB NVMe SSDs - Parts Unable To Format Or Initialize. Sold as it is and no return is allowed. If you are a high level tech, you can try fixing them up. That is why the price is super low now. Fatal error notice pops up each time each ssd is trying to be initialized or formatted, so they were either unformatted or kept in raw stage now.