Correct but if my limited understanding of Dr is correct if you just want to turn on recording for an entire drive you are probably going to need USB as the after the fact videos are only a minite
I preface by saying that my comments apply to DR in iD7 - but I assume it works the same in iD8. You can't record directly
to removable media - it only
records to internal storage, and you can then export videos to other media. And you can't record for a lengthy driving session - DR only records in a maximum of 40s videos (it can be less) - 20s before and 20s after an "event" automatically, or 40s total for one video when recording manually, although you can record multiple 40s videos, and it records constantly while the ignition is on (and if set to "automatic" it will physically save the recording before and/or after an impact, up to that 20s before/after limit). I haven't exported any videos, but I expect quite a large number could be stored on a 128GB removable drive, although I'm not sure to what purpose, and I'm sure the user-accessible capacity of the internal SSD is limited (my guess is less than 20GB if previous user space is an indicator, but I think the actual number of videos is limited to 10), and first-in, first-out storage for video files, although you can manually delete all or some. So DR, although useful for its intended purpose per the example I included, is not exactly the same as a dash-cam, and has limited utility beyond what it is intended to do. Hope this is helpful.