SCART cable for use with Dreamcast. 15kHz/31kHz switch is located on the console end plug to switch between 480i and 480p display. Uses a PCB designed by Dan Kunz(shop.dansprojects.com) featuring a sync combiner to convert H sync and V sync into csync for the 31kHz(480p) signal and passes the Dreamcast's stock 15kHz(480i) output.
Tested and confirmed working with:
PVMs
OSSC
XRGB Mini