Today Only: 900W CyberPower Mini-Tower For $139.95 Shipped From Amazon This was selling for $214.95 yesterday and is now the lowest price ever from Amazon, it has 4.6 star ratings. -Pure Sine Wave UPS system – 1500VA/900 Watts, designed to support Active PFC power supplies and conventional power supplies. -Line interactive, AVR and GreenPower – Want to continue reading this post? Click here!