The Attom U-003R11H Rack Mount UPS is a 3kVA online double-conversion power backup solution designed for servers, IT systems, and networking equipment. It delivers clean, stable, and uninterrupted power with advanced MCU-based control technology. Featuring a wide input voltage range, intelligent battery management, and full electrical protection, it ensures reliable performance even in unstable power conditions. Its compact rack-mount design allows easy integration into IT infrastructure, while RS232 and optional SNMP/Modbus support enable remote monitoring. This UPS is ideal for small to medium businesses requiring efficient and dependable power protection.