The last model of C64 uses EasyFlash 3 cartridge connected with USB cable to Windows laptop.
First, the program is sent to C64 and started. Program presented is a short demo Summer of 64 by Offence.
Next, the whole cartridge is being transferred and written to one of the seven freely available slots of EasyFlash3. The slot is then loaded and run. Cartridge presented is an EasyFlash game compilation by my very good friend, Tom-Cat of Nostalgia. The compilation consists of: Ghosts’n Goblins Arcade, Commando Arcade SE, and Bruce Lee II.
How to use EasyFlash 3 is very well documented on its maker’s page.