SSD 4TB and enclosure advice

Hi all, wasn’t sure where to put this post so I hope I have posted in the correct place.

I am running Roon from my iMac on an external HDD drive and am looking at buying a 2.5" SATA SSD with an enclosure to store my Roon library on.

I am looking at the below now. Please can you let me know if a good choice and if I need the enclosure to be separately powered using the wall socket or if it can rely on bus power from the iMac?




Many thanks!