I am looking to stick a usbc>usbc external ssd hard drive to the iMac 2017 model, in the back. Out of sight. I really want to make the most of it while staying somewhat affordable. It seems this WD MyPassport SSD 1TB has read/write speeds in real life of around 500mbyte/sec. I am not too familiar with external ssd from the last year or so, what i have is years old now. Is there someone with this drive that could share their experience with this? Or are there perhaps people who could recommend something that's giving better performance vs price? My iMac right now has the 1tb ssd internal, with write @ nearly 2000 and read at nearly 2500. So I am looking for something that isn't an old 1tb extrernal usb3 thingy with 200.. really want to utalize thunderbolt3/usbc and use it daily for storing my media, documents, (with full disk encryption on which i know will have slight impact on performance, but it is neglectable) ).