An APC Back-UPS CS instantly switches your computer to emergency battery backup power and allows you to work through brief power outages or to shut down your system in the event of an extended outage. High-performance surge suppression protects your computer from electrical noise and damaging power surges - even lightning.

All Back-UPS CS Models ship with shutdown software for Windows 98/ME/2000 and MAC OS 9(9.0.4 or higher)