I needed extenders with DVI interface for work, and I had bought two so-called DVI extenders from an unknown brand a week ago but they failed to work. I have used FS devices before so I asked my AM if they sell extenders with DVI port, the answer is positive. Then I ordered this set. After I connected them, they performed exceptionally for 4K@30Hz. FS won my trust once again!

We had cat6 extenders already but the distance to one signboard happened to be more than the cat6 extenders could do. So we replace them with these fiber extenders. They work as advertised.