Hello Francesco, On Monday, 16. November 2009 12:20:46 mailing - effem wrote: > Hello, > nut is compatible with APC CS-350 USB e APC CS-500 USB? > > Anybody use this ups with nut? Yes, works fine. I use a CS-350 via USB to test a new nut release before I install it on the production servers/UPS. Cheers, Thomas