What is drive temperature 2 on a SSD drive?

Hi dear community,
I am new here, and I need some help!

I installed the latest version of HWInfo Yesterday,
and the sensors,showed me something that I've never known about!

It showed me : Drive temperature 2 for my single SSD drive!
And it showed me a max value of 85 degrees Celsius!

Please tell me what could ''Drive temperature 2'' be for my single SSD drive,and which temps are critical!

By the way,my laptop is Lenovo-Y700-15ISK,has a 128 GB Samsung SSD drive and a HDD drive.

Please help me!
Thanks to all in advance!
Best regards!