IVAN, NO WAY to connect Game/Midi port to PSR-530 or any synth. The Game/Midi DB15 needs a special MIDI cable like the creative labs offers at $19.99 in this configuration connect MIDI IN/OUT on your synt. no PC/Port required. Otherway is to connect the male DB9 Serial port in your laptop to 8 minidin port PC/Port, special wiring is required, and a windows driver i guess this is what you are looking for, just remember same mouse port COM1 or COM2 to PC(or mac)/port on the PSR-530 i saw this configuration for a ROLAND XP-10 so i suppose is the same for PSR-530