This USB to PS/2 adapter is the ideal way to connect PS/2 devices on USB systems. The adapter will connect a PS/2 keyboard or mouse through a USB port from a computer or USB hub. No power adapter is needed. No software required, just plug and play for easy installation. Please note: This is a passive adapter and is designed to be used with PS/2 devices which support both PS/2 and USB signal types. If the PS/2 device does not support USB signals, then use our USB to PS/2 Adapter Cable, 32185 (The Source Item # 8014421).