EDIROL (RolandED) PC-300 Driver Ver.1.4.0 for Windows 98 / Windows Me For Product(s): PC-300 This is an Roland PC-300 driver for Microsoft(R) Windows(R) 98 / Microsoft(R) Windows(R) Me. Features Multiclient support As many as four applications can simultaneously use each MIDI OUT/MIDI IN port. Simultaneously use four units Up to four PC-300 units can be connected to a single PC via USB. For Operating System(s): WindowsMe / Windows98