Hello,
I am using Demul on a computer under Windows 10 in an arcade cabinet supporting 15-31khz.
The card I am using is Arcadevga 5000, it's based on Ati 5450 and it supports a lot of emulators, some of them in 15khz like Groovymame, Retroarch... and some in 31khz like PCSX2, Dolphin...
Demul...