Looking for an USB media player that can play .ass subtitles and work with 4TB drives

[Dark*Star]

I have a Western Digital media player from a few years ago that I was very happy with until I started getting into anime. It can handle almost any format and codec but not, unfortunately, .ass subtitles. The replacement I want needs to be able to handle 1080p, mkv, mp4, srt and ass/ssa as well as be compatible with 4TB drives. It would be nice if it could play h265 and work with drives larger than 4TB but neither of those two things is essential. Thanks for any help you may provide.