According to my service tag, I should have a Toshiba 512 NVMe SSD drive. However, it is a Samsung PM961. Where can I get the drivers as these are non-existent on Samsung's website?
All of Samsungs SSDs that end with a "1" are OEM units - drivers from the system vendor. Models that end on "0" are Samsung supported retail drives.
They're listed here as well.