0P4421 | American Power Conversion | PCB ASSY 400V SYS I/O 640-4142 | Code: 0P4421, PCB ASSY 400V SYS I/O 640-4142, please visit manufacturer website and select your region or go to shop: http://www.apc.com/shop/us/en/categories and write into search box: PCB ASSY 400V SYS I/O 640-4142 or 0P4421. | $ | |