4U, 8000W/8000VA UPS Rack/Tower Convertible UPS with Auto-rotate LCD Display. Lithium-ion batteries last 3x VRLA UPS, you do not need to replace the battery during the life of the UPS. EcoStruxure™ Ready for remote monitoring and management. Wireless communication possible with the optional WiFi device (AP9834). 5 year warranty on UPS and internal batteries. Stay always online and prevent data loss. An APC Smart-UPS Ultra On-Line Li-Ion always supplies perfectly clean power to all connected equipment thanks to its double conversion technology. Even power outages have no influence on this. The APC Smart-UPS On-Line then automatically supplies emergency power without having to switch. This way you prevent unwanted failure of, for example, a server, storage or switch. With the integrated network card and associated APC PowerChute Network Shutdown software, the UPS can send a shutdown signal via the network to multiple physical and/or virtual servers and have them shut down automatically and in a controlled manner when the UPS battery is almost empty. This way you prevent data loss, downtime and physical damage to hardware.. Ultra. Thanks to next-gen semiconductor technology, this APC Ultra UPS delivers 8000W in just a 4U form factor.. Lithium-Ion. The APC SRTL8KRM4UI uses Li-Ion batteries, which provides unique advantages:. -Longer life span. Li-Ion batteries can last up to 10 years, making the UPS truly maintenance-free.. -Smaller and lighter. Li-Ion batteries are smaller and weigh approximately 30% less than lead acid batteries, saving space, 2U form factor and simplifying installation.. -Better performance at high temperature. Li-Ion batteries perform well at high ambient temperatures (up to 40°C), in contrast to lead acid batteries where this is at the expense of battery life.. -5 year manufacturer's warranty. Standard long warranty on the UPS including the battery.. -Lower costs: The above benefits reduce the total costs over the entire lifespan of the UPS by up t

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