The Apantac EDID-L-V VGA EDID Learner and Emulator bundle come with both the VGA EDID Learned and the VGA EDID Emulator. The VGA EDID Learner can be used repeatedly to program multiple EDID Emulators. The VGA EDID Emulator can be programed multiple times. The emulators can be purchased separately without having to purchase the learner. These are low cost Passive inline devices that do not require external power.