Question about OWC Aura Pro X2

I see this item is not shipped with radiator whereas the same model here is sold with radiator (and extension box):
OWC Aura Pro X2 - 2048 GB - M.2 - 1534 MB/s (M.2)

So, if used in Mac Pro 2013, should a radiator be installed?

Card comes as shown and works perfectly in my Mac book Pro mid 14 (model 11.3). I am very satisfied.

The card has no annoying heat sink and works wonderfully with the Mac Pro Late 2013.