Thanks for the link looks like they updated their info and the answer is NO
Camera(s) tested that does not support high-speed sync modes on the Cactus V6 II:
- Fujifilm X-E2 (Updated: July 18, 2016)
- Fujifilm X100T (Updated: September 7, 2016)
- Fujifilm X-T2 (Updated: September 9, 2016)