What device provides a temporary power source to a server during a blackout while protecting against electrical spikes?

A UPS, or Uninterruptible Power Supply, is specifically designed to provide a temporary power source to devices like servers during a blackout, ensuring they remain operational for a limited time. This device contains a battery that kicks in immediately when it detects that the main power supply has failed, allowing the server to continue operating for a short period. This feature is critical for protecting data integrity and preventing system crashes during power interruptions.

In addition to providing backup power, a UPS also offers protection against electrical spikes. It often includes surge protection capabilities that help to absorb and redirect excess voltage, thereby safeguarding connected equipment from potential damage caused by power surges or spikes. This combined functionality makes a UPS an essential component in maintaining the reliability and safety of IT infrastructures, particularly for servers that require consistent power and stability to perform effectively.

While a surge protector only guards against voltage spikes without providing backup power, a generator can supply power during a blackout but typically does not protect against electrical spikes like a UPS does. A power inverter converts DC power to AC power but does not store energy or provide the immediate response necessary during power outages. Therefore, the UPS is the most suitable choice for providing temporary power while simultaneously offering electrical protection.