Our USB Share Switches are designed to share a USB Printer between 4 PC's. Primarily used for printer sharing these intelligent switches can also be used to connect up to 128 different USB devices. Specification 4 PCs share a USB printer or other USB Device Works with Windows 98/98SE/ME/2000/XP. Compliant with USB 1.1 Specification Supports UHCI and OHCI USB Interface Supports USB self power for more USB Hub expansion Auto printer mode supports First Come First Serve Easy to share other USB devices 4 PCs share a USB printer or other USB Device Works with Windows 98/98SE/ME/2000/XP. Compliant with USB 1.1 Specification Supports UHCI and OHCI USB Interface Supports USB self power for more USB Hub