Compaq 298581-002 server power supply unit. Pulled from a working system about 5 years ago.  The input voltage range is; 100-120-200-240vac at 50-60 Hz.  Outut is; 500W @ 100-120vac and 750W at 200-240vac.  Acording to the internet output voltages are 12vdc at 25a, 3.3vdc at 40a and 5vdc at 40a.  This could be used as a stand alone power supply or for replacing a faulty one in a server.