The Cyberpower CST135XLU-R 120 VAC 810W Uninterruptible Power Supply (UPS) System is a reliable and efficient power protection solution for computers, tablets, and networking equipment. With a voltage compatibility of 1350 VA and 120 V, this desktop/freestanding UPS system ensures a stable and continuous power supply for your devices. Featuring 10 outlets and a maximum power of 810 W, this CyberPower UPS system is designed to keep your electronics up and running during power outages or fluctuations. Its sleek black design and model CST135XLU-R make it a practical and stylish addition to any workstation or server room. does not hold a charge needs batteries powers on