As a video editor, I'm always offloading media and dumping several SD cards throughout the day/week, especially when working on a commercial project. The transfer speeds between the internal SSD and the computer are just quick. I can edit multiple video projects on this 4TB device during that process without sacrificing any space on my internal SSD.
As a video producer, I'm constantly looking for storage that is convenient yet doesn't cost too much. I can plug this into my laptop and desktop PC which is awesome. I bought mine almost a year ago and both are running as expected. What I like the most is the: storage, speed, security. I would recommend this product to you.
I purchased this portable SSD, in response to needing to replace my portable hard drive. It's fast, holds a ton, and I can back up both my wife's PC as well as my own on it very quickly. It's a nice feeling being able to grab a tiny device like this in case of an emergency and have everything on both PCs back upon them.