That’s 0 Kelvin, or absolute zero.

If your drive is actually that cold, congratulations, you’ve half way to making awesome superconductors and doing all kinds of cool science. The best research labs in the world have a hard time making things get close to that cold.

In reality, most likely the temperature sensor is faulty, and that’s the result of not getting a reading from it.

That ssd should be an ice cube at that temperature or worse turned into ln2