A:Answer It sounds like you will need an UNINTERRUPTABLE Power Supply. (UPS). The Thermaltake unit is not what you need, since it is a replacement for the original power supply in a tower type PC. You can search for UPS units. There are many that will work for you, if you only need to maintain power for a relatively short period of time during a power failure. The UPS plugs into the wall outlet and your PC power cable plugs into the UPS.