Inspiron 7460 SSD

Hi

I have an Inspiron 7460 with 1TB normal HDD, I am planning to add a Samsung 850 EVO 250GB SSD. But after seeing the motherboard I am confused, the available SSD slot on the motherboard looks like that of a NVMe and not the SATA III M.2.

The SATA III M.2 has 2 slots and NVMe has 1 slot, the emplty slot on the motherboard has only 1 slot. Can anyone confirm which of the below mentioned is compatible tihe 7460? Thanks.

https://www.samsung.com/us/computing/memory-storage/solid-state-drives/ssd-850-evo-m-2-500gb-mz-n5e500bw/

www.samsung.com/.../