BKFK 4K HDMI Dummy Plug - Virtual Monitor Display Emulator, Headless Display Adapter Supports up to 3840x2160@60Hz, 1080@120Hz DVI EDID Emulator (Single1)

Sometime HBCC will disable if SSH into your mining rig will prevent that from happening. Not sure how much HBCC has a factor on other cards?OSX utility Display Menu makes changing resolutions easy.Dummy plug would be useful for situations where you don't have another cord to connect to the card and want to use that GPU for something like cryptocurrency mining or BOINC work unit crunching.Ghost Adapters works MD graphics card "detected" that a monitor was plugged in. real test was connecting with TeamViewer and AnyDesk,Great for headless RaspberryPi. Tricks VNC display so full resolution. Easier than software solutions and stable.