Re:
I know this is an old thread, but for those who may search and find it the answer is yes with the adapter.
I use my Lumia 950 XL with a couple of external drives, one from Seagate 1.5 TB (NTFS) and a Western Digital 2TB (NTFS), and I have tried on an old 800 GB (FAT32, formatted using Ridgecrop software for that) with minor issues of after a few times connecting it may not show up to disconnect.
I have watched up to 4K movies but only those that are 6 GB size. Larger than that and there are issues, like a 25GB was unwatchable but I could hear it playing.
I hope this helps.