The CyberPower CP425SLG/CP425HGa 425VA 255W 8-Outlet Black UPS Backup is a reliable and efficient power protection solution for computers, networking equipment, and other electronic devices. With a maximum power output of 255W and surge energy capacity of 890J, this desktop UPS provides stable and clean power to connected devices. Featuring an audible alarm, surge protection, LED display, and remote monitoring capabilities, this backup power supply offers peace of mind and security for your valuable equipment. Additionally, the compact mini-tower form factor and universal voltage compatibility make it a versatile and easy-to-use solution for any home or office setting.NO BATTERIES!!